<div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://files.passeidireto.com/14d199ed-aedb-4369-937d-17a9440360b8/bg1.png"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m1 x2 h3 y2 ff2 fs1 fc0 sc0 ls0 ws0">AN<span class="_0 blank"> </span>A <span class="_0 blank"> </span>KA<span class="_1 blank"> </span>ROL<span class="_0 blank"> </span>I<span class="_0 blank"> </span>NE<span class="_0 blank"> </span> A<span class="_0 blank"> </span>L<span class="_0 blank"> </span>VE<span class="_0 blank"> </span>S<span class="_0 blank"> </span> A<span class="_0 blank"> </span>GR<span class="_0 blank"> </span>IP<span class="_0 blank"> </span>I<span class="_0 blank"> </span>NO<span class="_0 blank"> </span> </div><div class="t m1 x3 h3 y3 ff2 fs1 fc0 sc0 ls0 ws0">AN<span class="_0 blank"> </span>T<span class="_0 blank"> </span>ONI<span class="_0 blank"> </span>O<span class="_0 blank"> </span> N<span class="_0 blank"> </span>A<span class="_0 blank"> </span>T<span class="_0 blank"> </span>HA<span class="_0 blank"> </span>N <span class="_0 blank"> </span>L<span class="_0 blank"> </span>IM<span class="_0 blank"> </span>A <span class="_0 blank"> </span>FE<span class="_0 blank"> </span>R<span class="_0 blank"> </span>NA<span class="_1 blank"> </span>ND<span class="_0 blank"> </span>ES<span class="_0 blank"> </span> <span class="_0 blank"> </span>FL<span class="_0 blank"> </span>O<span class="_0 blank"> </span>RE<span class="_0 blank"> </span>NT<span class="_0 blank"> </span>I<span class="_0 blank"> </span>NO<span class="_0 blank"> </span> <span class="_0 blank"> </span>DA<span class="_0 blank"> </span> S<span class="_0 blank"> </span>IL<span class="_0 blank"> </span>V<span class="_0 blank"> </span>A<span class="_0 blank"> </span> </div><div class="t m2 x0 h4 y4 ff2 fs2 fc0 sc0 ls0 ws0">LAIS MARIA RAMA<span class="_0 blank"> </span>LHO DE ALMEIDA </div><div class="t m1 x4 h3 y5 ff2 fs1 fc0 sc0 ls0 ws0">MA<span class="_0 blank"> </span>RI<span class="_0 blank"> </span>A<span class="_0 blank"> </span> T<span class="_0 blank"> </span>ER<span class="_0 blank"> </span>ES<span class="_0 blank"> </span>A<span class="_0 blank"> </span> <span class="_0 blank"> </span>CA<span class="_0 blank"> </span>VA<span class="_0 blank"> </span>L<span class="_0 blank"> </span>CA<span class="_0 blank"> </span>NT<span class="_0 blank"> </span>I<span class="_0 blank"> </span> N<span class="_0 blank"> </span>EI<span class="_0 blank"> </span>V<span class="_0 blank"> </span>A <span class="_0 blank"> </span>CO<span class="_0 blank"> </span>ÊL<span class="_0 blank"> </span>H<span class="_0 blank"> </span>O<span class="_0 blank"> </span> </div><div class="t m1 x5 h3 y6 ff2 fs1 fc0 sc0 ls0 ws0">RA<span class="_0 blank"> </span>IS<span class="_0 blank"> </span>SA<span class="_0 blank"> </span> <span class="_0 blank"> </span>VI<span class="_0 blank"> </span>RGI<span class="_0 blank"> </span>N<span class="_0 blank"> </span>IA<span class="_0 blank"> </span> <span class="_0 blank"> </span>FE<span class="_0 blank"> </span>R<span class="_0 blank"> </span>NA<span class="_0 blank"> </span>ND<span class="_0 blank"> </span>E<span class="_0 blank"> </span>S<span class="_0 blank"> </span> </div><div class="t m2 x1 h4 y7 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y8 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y9 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 ya ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 yb ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 yc ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 yd ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x6 h5 ye ff3 fs2 fc0 sc0 ls0 ws0">ESTRUTURAS DE CONCRETO <span class="_0 blank"> </span>ARMADO </div><div class="t m2 x7 h5 yf ff2 fs2 fc0 sc0 ls0 ws0">TIRANTES E A<span class="_0 blank"> </span>RCOS <span class="ff3"> </span></div><div class="t m2 x8 h4 y10 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x8 h4 y11 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x8 h4 y12 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x8 h4 y13 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y14 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y15 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h6 y16 ff4 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h6 y17 ff4 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y18 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y19 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y1a ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x9 h4 y1b ff2 fs2 fc0 sc0 ls0 ws0">JO<span class="_2 blank"></span>ÃO<span class="_2 blank"></span> <span class="_3 blank"> </span>PES<span class="_2 blank"></span>SOA <span class="_1 blank"> </span>\u2013</div><div class="t m3 xa h3 y1c ff2 fs1 fc0 sc0 ls0 ws0"> </div><div class="t m2 xb h4 y1b ff2 fs2 fc0 sc0 ls0 ws0">PB<span class="_2 blank"></span> </div><div class="t m2 xc h4 y1d ff2 fs2 fc0 sc0 ls0 ws0">20<span class="_2 blank"></span>19.<span class="_2 blank"></span>1 </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y1e w1 h7" alt="" src="https://files.passeidireto.com/14d199ed-aedb-4369-937d-17a9440360b8/bg2.png"><div class="t m2 xd h4 y1f ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y20 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m1 x4 h3 y21 ff2 fs1 fc0 sc0 ls0 ws0">AN<span class="_0 blank"> </span>A <span class="_0 blank"> </span>KA<span class="_1 blank"> </span>ROL<span class="_0 blank"> </span>I<span class="_0 blank"> </span>NE<span class="_0 blank"> </span> A<span class="_0 blank"> </span>L<span class="_0 blank"> </span>VE<span class="_0 blank"> </span>S<span class="_0 blank"> </span> A<span class="_0 blank"> </span>GR<span class="_0 blank"> </span>IP<span class="_0 blank"> </span>I<span class="_0 blank"> </span>NO<span class="_0 blank"> </span> <span class="_0 blank"> </span>HE<span class="_0 blank"> </span>NR<span class="_0 blank"> </span>IQ<span class="_0 blank"> </span>U<span class="_0 blank"> </span>E<span class="_0 blank"> </span> </div><div class="t m1 x3 h3 y22 ff2 fs1 fc0 sc0 ls0 ws0">AN<span class="_0 blank"> </span>T<span class="_0 blank"> </span>ONI<span class="_0 blank"> </span>O<span class="_0 blank"> </span> N<span class="_0 blank"> </span>A<span class="_0 blank"> </span>T<span class="_0 blank"> </span>HA<span class="_0 blank"> </span>N <span class="_0 blank"> </span>L<span class="_0 blank"> </span>IM<span class="_0 blank"> </span>A <span class="_0 blank"> </span>FE<span class="_0 blank"> </span>R<span class="_0 blank"> </span>NA<span class="_1 blank"> </span>ND<span class="_0 blank"> </span>ES<span class="_0 blank"> </span> <span class="_0 blank"> </span>FL<span class="_0 blank"> </span>O<span class="_0 blank"> </span>RE<span class="_0 blank"> </span>NT<span class="_0 blank"> </span>I<span class="_0 blank"> </span>NO<span class="_0 blank"> </span> <span class="_0 blank"> </span>DA<span class="_0 blank"> </span> S<span class="_0 blank"> </span>IL<span class="_0 blank"> </span>V<span class="_0 blank"> </span>A<span class="_0 blank"> </span> </div><div class="t m2 x0 h4 y23 ff2 fs2 fc0 sc0 ls0 ws0">LAIS MARIA RAMA<span class="_0 blank"> </span>LHO DE ALMEIDA </div><div class="t m1 x4 h3 y24 ff2 fs1 fc0 sc0 ls0 ws0">MA<span class="_0 blank"> </span>RI<span class="_0 blank"> </span>A<span class="_0 blank"> </span> T<span class="_0 blank"> </span>ER<span class="_0 blank"> </span>ES<span class="_0 blank"> </span>A<span class="_0 blank"> </span> <span class="_0 blank"> </span>CA<span class="_0 blank"> </span>VA<span class="_0 blank"> </span>L<span class="_0 blank"> </span>CA<span class="_0 blank"> </span>NT<span class="_0 blank"> </span>I<span class="_0 blank"> </span> N<span class="_0 blank"> </span>EI<span class="_0 blank"> </span>V<span class="_0 blank"> </span>A <span class="_0 blank"> </span>CO<span class="_0 blank"> </span>ÊL<span class="_0 blank"> </span>H<span class="_0 blank"> </span>O<span class="_0 blank"> </span> </div><div class="t m1 x5 h3 y25 ff2 fs1 fc0 sc0 ls0 ws0">RA<span class="_0 blank"> </span>IS<span class="_0 blank"> </span>SA<span class="_0 blank"> </span> <span class="_0 blank"> </span>VI<span class="_0 blank"> </span>RGI<span class="_0 blank"> </span>N<span class="_0 blank"> </span>IA<span class="_0 blank"> </span> <span class="_0 blank"> </span>FE<span class="_0 blank"> </span>R<span class="_0 blank"> </span>NA<span class="_0 blank"> </span>ND<span class="_0 blank"> </span>E<span class="_0 blank"> </span>S<span class="_0 blank"> </span> </div><div class="t m2 xe h4 y26 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 xe h4 y27 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 xe h4 y28 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 xe h4 y29 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 xe h4 y2a ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 xe h4 y2b ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 xe h4 y2c ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x6 h5 y2d ff3 fs2 fc0 sc0 ls0 ws0">ESTRUTURAS DE CONCRETO <span class="_0 blank"> </span>ARMADO </div><div class="t m2 x7 h5 y2e ff2 fs2 fc0 sc0 ls0 ws0">TIRANTES E A<span class="_0 blank"> </span>RCOS<span class="ff3"> </span></div><div class="t m2 x1 h4 y2f ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y30 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y31 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x5 h4 y32 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 xf h8 y33 ff2 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m2 xf h8 y34 ff2 fs3 fc0 sc0 ls0 ws0">Trabalho <span class="_2 blank"></span>apresentado <span class="_2 blank"></span>como <span class="_2 blank"></span>requisito <span class="_2 blank"></span>parcial <span class="_2 blank"></span>para </div><div class="t m2 xf h8 y35 ff2 fs3 fc0 sc0 ls0 ws0">obtenção <span class="_4 blank"> </span>da <span class="_4 blank"> </span>segund<span class="_2 blank"></span>a <span class="_4 blank"> </span>not<span class="_0 blank"> </span>a <span class="_4 blank"> </span>da <span class="_4 blank"> </span>disciplin<span class="_2 blank"></span>a<span class="_0 blank"> </span> </div><div class="t m2 xf h8 y36 ff2 fs3 fc0 sc0 ls0 ws0">Estruturas <span class="_2 blank"></span>d<span class="_2 blank"></span>e <span class="_2 blank"></span>Concreto <span class="_2 blank"></span>A<span class="_2 blank"></span>rmado <span class="_2 blank"></span>II, <span class="_2 blank"></span>mini<span class="_2 blank"></span>st<span class="_0 blank"> </span>rado <span class="_2 blank"></span>pe<span class="_2 blank"></span>lo </div><div class="t m2 xf h8 y37 ff2 fs3 fc0 sc0 ls0 ws0">professor <span class="_5 blank"> </span>VALKISFRAN<span class="_2 blank"></span> <span class="_5 blank"> </span>LIRA <span class="_5 blank"> </span>DE <span class="_5 blank"> </span>BRIT<span class="_2 blank"></span>O<span class="_0 blank"> </span>, <span class="_5 blank"> </span>do </div><div class="t m2 xf h8 y38 ff2 fs3 fc0 sc0 ls0 ws0">curso de Engenharia<span class="_2 blank"></span> Civil P9-B </div><div class="t m2 xe h9 y39 ff3 fs3 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h9 y3a ff3 fs3 fc1 sc0 ls0 ws0"> </div><div class="t m2 x1 h9 y3b ff3 fs3 fc1 sc0 ls0 ws0"> </div><div class="t m2 x1 h9 y3c ff3 fs3 fc1 sc0 ls0 ws0"> </div><div class="t m2 x1 h9 y3d ff3 fs3 fc1 sc0 ls0 ws0"> </div><div class="t m2 x9 h4 y3e ff2 fs2 fc0 sc0 ls0 ws0">JO<span class="_2 blank"></span>ÃO<span class="_2 blank"></span> <span class="_3 blank"> </span>PES<span class="_2 blank"></span>SOA <span class="_1 blank"> </span>\u2013</div><div class="t m3 xa h3 y3f ff2 fs1 fc0 sc0 ls0 ws0"> </div><div class="t m2 xb h4 y3e ff2 fs2 fc0 sc0 ls0 ws0">PB<span class="_2 blank"></span> </div><div class="t m2 xc h4 y40 ff2 fs2 fc0 sc0 ls0 ws0">20<span class="_2 blank"></span>19.<span class="_2 blank"></span>1 </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><div class="t m2 xd h4 y1f ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y20 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x10 h5 y41 ff3 fs2 fc0 sc0 ls0 ws0">SUMÁRIO </div><div class="t m2 x1 h5 y42 ff3 fs2 fc0 sc0 ls0 ws0">1 TIRANTES<span class="ff2 ls1"> <span class="_2 blank"></span>.........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>.....<span class="_0 blank"> </span>............<span class="_0 blank"> </span> <span class="_6 blank"></span>3<span class="ff5 fs3 ls0"> </span></span></div><div class="t m2 x11 h4 y43 ff2 fs2 fc0 sc0 ls1 ws0">1.1 INTRODUÇÃO <span class="_6 blank"></span>.............<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>. <span class="_6 blank"></span>3<span class="ff6 fs3 ls0"> </span></div><div class="t m2 x11 h4 y44 ff2 fs2 fc0 sc0 ls1 ws0">1.2 AVALIAÇÃO DA NORMA <span class="_7 blank"></span>.........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>.....<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span> <span class="_6 blank"></span>3<span class="ff6 fs3 ls0"> </span></div><div class="t m2 x11 h4 y45 ff2 fs2 fc0 sc0 ls1 ws0">1.3 DETALHAMENTO <span class="_8 blank"></span>.........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span> <span class="_6 blank"></span>4<span class="ff6 fs3 ls0"> </span></div><div class="t m2 x12 ha y46 ff7 fs2 fc0 sc0 ls0 ws0">1.3.1 FISSURAÇÃO<span class="ff2 ls1">.........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>.....<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>..... <span class="_6 blank"></span>4<span class="ff8 fs3 ls0"> </span></span></div><div class="t m2 x12 ha y47 ff7 fs2 fc0 sc0 ls0 ws0">1.3.2 EMENDAS<span class="ff2 ls1"> <span class="_8 blank"></span>.........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>.... <span class="_6 blank"></span>5<span class="ff8 fs3 ls0"> </span></span></div><div class="t m2 x12 ha y48 ff7 fs2 fc0 sc0 ls0 ws0">1.3.3 ANCORAGEM<span class="ff2 ls1"> <span class="_8 blank"></span>....<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>.....<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>.... <span class="_6 blank"></span>6<span class="ff8 fs3 ls0"> </span></span></div><div class="t m2 x11 h4 y49 ff2 fs2 fc0 sc0 ls1 ws0">1.4 COMPORTAMENTO ESTRUTURAL <span class="_8 blank"></span>........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...... <span class="_6 blank"></span>7<span class="ff6 fs3 ls0"> </span></div><div class="t m2 x11 h4 y2a ff2 fs2 fc0 sc0 ls1 ws0">1.5 ESTUDO DE CASO <span class="_6 blank"></span>........<span class="_0 blank"> </span>.....<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>..... <span class="_6 blank"></span>7<span class="ff6 fs3 ls0"> </span></div><div class="t m2 x12 ha y4a ff7 fs2 fc0 sc0 ls0 ws0">1.5.1 APRESENTAÇÃO DO CASO<span class="ff2 ls1">.........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>... <span class="_6 blank"></span>7<span class="ff8 fs3 ls0"> </span></span></div><div class="t m2 x12 ha y4b ff7 fs2 fc0 sc0 ls0 ws0">1.5.2 CONSIDER<span class="_0 blank"> </span>AÇÃO DO PROJETO ESTRUTURAL<span class="ff2 ls1"> <span class="_7 blank"></span>...............<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>..... <span class="_6 blank"></span>8<span class="ff8 fs3 ls0"> </span></span></div><div class="t m2 x12 ha y4c ff7 fs2 fc0 sc0 ls0 ws0">1.5.3 CUIDADOS NO SOFTWARE<span class="ff2 ls1"> <span class="_8 blank"></span>....<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>... <span class="_6 blank"></span>9<span class="ff8 fs3 ls0"> </span></span></div><div class="t m2 x1 h5 y4d ff3 fs2 fc0 sc0 ls0 ws0">2 ARCOS<span class="ff2 ls1"> <span class="_8 blank"></span>....<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......... <span class="_9 blank"></span>11<span class="ff5 fs3 ls0"> </span></span></div><div class="t m2 x11 h4 y4e ff2 fs2 fc0 sc0 ls1 ws0">2.1 INTRODUÇÃO <span class="_6 blank"></span>.............<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>........... <span class="_9 blank"></span>11<span class="ff6 fs3 ls0"> </span></div><div class="t m2 x11 h4 y4f ff2 fs2 fc0 sc0 ls1 ws0">2.2 CLASSIFICAÇÕES <span class="_6 blank"></span>........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>.....<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>... <span class="_6 blank"></span>12<span class="ff6 fs3 ls0"> </span></div><div class="t m2 x11 h4 y50 ff2 fs2 fc0 sc0 ls1 ws0">2.3 COMPORTAMENTO ESTRUTURAL <span class="_8 blank"></span>........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>.... <span class="_6 blank"></span>14<span class="ff6 fs3 ls0"> </span></div><div class="t m2 x11 h4 y51 ff2 fs2 fc0 sc0 ls1 ws0">2.4 DIMENSIONAMENTO <span class="_7 blank"></span>..............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>.....<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......... <span class="_9 blank"></span>15<span class="ff6 fs3 ls0"> </span></div><div class="t m2 x12 ha y52 ff7 fs2 fc0 sc0 ls0 ws0">2.4.1 PRÉ-DIMENSIONAMENTO<span class="_0 blank"> </span><span class="ff2 ls1"> <span class="_a blank"></span>.........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>.......... <span class="_9 blank"></span>15<span class="ff8 fs3 ls0"> </span></span></div><div class="t m2 x12 ha y53 ff7 fs2 fc0 sc0 ls0 ws0">2.4.2 CÁLCULO DAS CARGAS<span class="ff2 ls1"> <span class="_6 blank"></span>.........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...... <span class="_6 blank"></span>16<span class="ff8 fs3 ls0"> </span></span></div><div class="t m2 x11 h4 y54 ff2 fs2 fc0 sc0 ls1 ws0">2.5 DETALHAMENTO <span class="_8 blank"></span>.........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......... <span class="_9 blank"></span>17<span class="ff6 fs3 ls0"> </span></div><div class="t m2 x11 h4 y55 ff2 fs2 fc0 sc0 ls1 ws0">2.6 ESTUDO DE CASO <span class="_6 blank"></span>........<span class="_0 blank"> </span>.....<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>... <span class="_6 blank"></span>18<span class="ff6 fs3 ls0"> </span></div><div class="t m2 x12 ha y56 ff7 fs2 fc0 sc0 ls0 ws0">2.6.1 APRESENTAÇÃO DA ES<span class="_0 blank"> </span>TRUTURA<span class="ff2 ls1"> <span class="_b blank"></span>.........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...... <span class="_6 blank"></span>18<span class="ff8 fs3 ls0"> </span></span></div><div class="t m2 x12 ha y57 ff7 fs2 fc0 sc0 ls0 ws0">2.6.2 CONSIDER<span class="_0 blank"> </span>AÇÕES SOBRE CÁLCULO DOS ESFORÇOS<span class="ff2 ls1"> <span class="_6 blank"></span>.........<span class="_0 blank"> </span>............<span class="_0 blank"> </span> <span class="_6 blank"></span>20<span class="ff8 fs3 ls0"> </span></span></div><div class="t m2 x1 h5 y58 ff3 fs2 fc0 sc0 ls0 ws1">REFERÊNCIAS<span class="ff2 ls1 ws0"> <span class="_6 blank"></span>...............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>............<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>......<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...........<span class="_0 blank"> </span>...... <span class="_9 blank"></span>22<span class="ff5 fs3 ls0"> </span></span></div><div class="t m2 x1 h4 y59 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h5 y5a ff2 fs2 fc0 sc0 ls2 ws0"> <span class="ff3 ls0"> </span></div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><div class="t m2 x13 h4 y1f ff2 fs2 fc0 sc0 ls0 ws0">3 </div><div class="t m2 x1 h4 y20 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h5 y5b ff3 fs2 fc0 sc0 ls0 ws0">1 TIRANTES </div><div class="t m2 x1 h4 y5c ff2 fs2 fc0 sc0 ls0 ws0">1.1 INTRODUÇÃO </div><div class="t m2 x14 h4 y5d ff2 fs2 fc0 sc0 ls0 ws0">Seguindo o modelo de dim<span class="_0 blank"> </span>ensionamento de uma viga tradicional de concreto </div><div class="t m2 x1 h4 y5e ff2 fs2 fc0 sc0 ls0 ws0">armado, <span class="_4 blank"> </span>onde <span class="_4 blank"> </span>a <span class="_4 blank"> </span>flexão <span class="_4 blank"> </span>é <span class="_4 blank"> </span>prep<span class="_2 blank"></span>on<span class="_0 blank"> </span>derante, <span class="_4 blank"> </span>projeta-se <span class="_4 blank"> </span>o <span class="_4 blank"> </span>dimensionamento<span class="_2 blank"></span> </div><div class="t m2 x1 h4 y5f ff2 fs2 fc0 sc0 ls0 ws0">correspondendo <span class="_c blank"> </span>a <span class="_c blank"> </span>mobiliz<span class="_2 blank"></span>ação <span class="_c blank"> </span>de <span class="_c blank"> </span>momento <span class="_c blank"> </span>fletores <span class="_c blank"> </span>e <span class="_c blank"> </span>força <span class="_c blank"> </span>corta<span class="_2 blank"></span>nte <span class="_c blank"> </span>ao <span class="_c blank"> </span>elemento </div><div class="t m2 x1 h4 y60 ff2 fs2 fc0 sc0 ls0 ws0">solicitado. <span class="_c blank"> </span>Contudo, <span class="_d blank"> </span>para <span class="_d blank"> </span>o <span class="_c blank"> </span>padrão <span class="_d blank"> </span>de <span class="_c blank"> </span>di<span class="_2 blank"></span>m<span class="_0 blank"> </span>ensionamento <span class="_d blank"> </span>empr<span class="_0 blank"> </span>egado <span class="_d blank"> </span>para <span class="_c blank"> </span>bielas <span class="_d blank"> </span>e </div><div class="t m2 x1 h4 y61 ff2 fs2 fc0 sc0 ls0 ws0">tirantes <span class="_c blank"> </span>utili<span class="_2 blank"></span>za-se <span class="_c blank"> </span>métodos <span class="_d blank"> </span>de <span class="_c blank"> </span>concepção <span class="_d blank"> </span>e <span class="_d blank"> </span>an<span class="_0 blank"> </span>álise <span class="_d blank"> </span>mai<span class="_0 blank"> </span>s <span class="_d blank"> </span>precisos <span class="_d blank"> </span>par<span class="_0 blank"> </span>a <span class="_c blank"> </span>reg<span class="_2 blank"></span>iões<span class="_0 blank"> </span> <span class="_d blank"> </span>de </div><div class="t m2 x1 h4 y62 ff2 fs2 fc0 sc0 ls0 ws0">descontinuidade <span class="_d blank"> </span>do <span class="_d blank"> </span>elemento <span class="_d blank"> </span>de <span class="_d blank"> </span>concreto <span class="_d blank"> </span>armado, <span class="_d blank"> </span>e <span class="_d blank"> </span>até <span class="_d blank"> </span>mesmo <span class="_d blank"> </span>para <span class="_d blank"> </span>as <span class="_d blank"> </span>que <span class="_d blank"> </span>não<span class="_2 blank"></span> </div><div class="t m2 x1 h4 y63 ff2 fs2 fc0 sc0 ls0 ws0">apresentem descontinuidade. </div><div class="t m2 x14 h4 y64 ff2 fs2 fc0 sc0 ls0 ws0">Tal <span class="_c blank"> </span>modelo <span class="_c blank"> </span>método <span class="_c blank"> </span>de <span class="_c blank"> </span>tirantes <span class="_c blank"> </span>é <span class="_c blank"> </span>recomendado <span class="_c blank"> </span>e <span class="_e blank"> </span>assegurado <span class="_c blank"> </span>por <span class="_d blank"> </span>nor<span class="_0 blank"> </span>mas </div><div class="t m2 x1 h4 y65 ff2 fs2 fc0 sc0 ls0 ws0">mundiais, <span class="_1 blank"> </span>assim <span class="_3 blank"> </span>como <span class="_1 blank"> </span>é <span class="_1 blank"> </span>atestado <span class="_1 blank"> </span>pe<span class="_0 blank"> </span>la <span class="_1 blank"> </span>Norma <span class="_1 blank"> </span>Bras<span class="_0 blank"> </span>ileira <span class="_1 blank"> </span>Regulamentadora. <span class="_3 blank"> </span>Todavia, </div><div class="t m2 x1 h4 y66 ff2 fs2 fc0 sc0 ls0 ws0">não anula <span class="_0 blank"> </span>a ne<span class="_0 blank"> </span>cessidade de <span class="_0 blank"> </span>um aprofundamento <span class="_0 blank"> </span>mais amplo <span class="_0 blank"> </span>nesse método, <span class="_0 blank"> </span>visando </div><div class="t m2 x1 h4 y67 ff2 fs2 fc0 sc0 ls0 ws0">uma <span class="_f blank"> </span>melhoria <span class="_f blank"> </span>contínua <span class="_f blank"> </span>da <span class="_f blank"> </span>segurança, <span class="_f blank"> </span>aprimorando <span class="_f blank"> </span>a <span class="_f blank"> </span>todo <span class="_f blank"> </span>momento <span class="_f blank"> </span>os <span class="_f blank"> </span>critérios <span class="_f blank"> </span>de </div><div class="t m2 x1 h4 y68 ff2 fs2 fc0 sc0 ls0 ws0">resistência e ancoragem. </div><div class="t m2 x14 h4 y69 ff2 fs2 fc0 sc0 ls0 ws0">Este <span class="_d blank"> </span>modelo <span class="_d blank"> </span>tem <span class="_d blank"> </span>u<span class="_2 blank"></span>m<span class="_0 blank"> </span>a <span class="_d blank"> </span>metodologia <span class="_d blank"> </span>de <span class="_f blank"> </span>ana<span class="_0 blank"> </span>lisar <span class="_d blank"> </span>o <span class="_d blank"> </span>ele<span class="_2 blank"></span>mento <span class="_d blank"> </span>como <span class="_d blank"> </span>um <span class="_d blank"> </span>todo, </div><div class="t m2 x1 h4 y6a ff2 fs2 fc0 sc0 ls0 ws0">utilizando <span class="_8 blank"></span>um <span class="_2 blank"></span>sistema <span class="_8 blank"></span>de <span class="_8 blank"></span>avaliar <span class="_8 blank"></span>o <span class="_8 blank"></span>momento <span class="_8 blank"></span>fletor <span class="_2 blank"></span>que <span class="_8 blank"></span>cada <span class="_8 blank"></span>barra <span class="_8 blank"></span>resiste <span class="_8 blank"></span>considerando </div><div class="t m2 x1 h4 y6b ff2 fs2 fc0 sc0 ls0 ws0">os diagramas de momento, e através de<span class="_0 blank"> </span>ste, determinar a área básica das armaduras </div><div class="t m2 x1 h4 y6c ff2 fs2 fc0 sc0 ls0 ws0">por meio das <span class="_2 blank"></span>f<span class="_0 blank"> </span>orças aplicadas em cada <span class="_2 blank"></span>tramo do banzo q<span class="_2 blank"></span>ue<span class="_0 blank"> </span> esteja tracionado. <span class="_2 blank"></span>Se<span class="_0 blank"> </span>ndo </div><div class="t m2 x1 h4 y6d ff2 fs2 fc0 sc0 ls0 ws0">os <span class="_f blank"> </span>pon<span class="_0 blank"> </span>tos <span class="_f blank"> </span>de <span class="_d blank"> </span>interrupção <span class="_f blank"> </span>das <span class="_10 blank"> </span>tiras <span class="_f blank"> </span>de <span class="_10 blank"> </span>aço, <span class="_10 blank"> </span>ou <span class="_10 blank"> </span>seja, <span class="_f blank"> </span>os <span class="_10 blank"> </span>encontros <span class="_10 blank"> </span>entre <span class="_10 blank"> </span>as <span class="_f blank"> </span>bielas <span class="_10 blank"> </span>e </div><div class="t m2 x1 h4 y6e ff2 fs2 fc0 sc0 ls0 ws0">tirantes, são determinadas por nó<span class="_0 blank"> </span>s. </div><div class="t m2 x1 h4 y6f ff2 fs2 fc0 sc0 ls0 ws0">1.2 AVALIAÇÃO <span class="_0 blank"> </span>DA NORMA </div><div class="t m2 x14 h4 y70 ff2 fs2 fc0 sc0 ls0 ws0">Segundo <span class="_c blank"> </span>a <span class="_10 blank"> </span>norm<span class="_0 blank"> </span>a <span class="_d blank"> </span>NBR <span class="_d blank"> </span>61<span class="_0 blank"> </span>18 <span class="_d blank"> </span>\u2013 <span class="_d blank"> </span>20<span class="_0 blank"> </span>14, <span class="_d blank"> </span>tirantes <span class="_c blank"> </span>sã<span class="_2 blank"></span>o <span class="_c blank"> </span>elementos <span class="_d blank"> </span>lineares <span class="_d blank"> </span>que </div><div class="t m2 x1 h4 y71 ff2 fs2 fc0 sc0 ls0 ws0">possuem <span class="_d blank"> </span>eixo <span class="_d blank"> </span>reto <span class="_d blank"> </span>e <span class="_d blank"> </span>que <span class="_c blank"> </span>possuem <span class="_10 blank"> </span>de <span class="_d blank"> </span>forma <span class="_d blank"> </span>pr<span class="_0 blank"> </span>eponderante <span class="_d blank"> </span>esforços <span class="_d blank"> </span>de <span class="_d blank"> </span>tração. <span class="_d blank"> </span>A </div><div class="t m2 x1 h4 y72 ff2 fs2 fc0 sc0 ls0 ws0">norma <span class="_c blank"> </span>expõe <span class="_d blank"> </span>alguns<span class="_0 blank"> </span> <span class="_d blank"> </span>parâmetr<span class="_0 blank"> </span>os <span class="_c blank"> </span>que <span class="_d blank"> </span>devem <span class="_c blank"> </span>ser <span class="_c blank"> </span>seguid<span class="_2 blank"></span>os<span class="_0 blank"> </span> <span class="_c blank"> </span>para <span class="_d blank"> </span>garantir <span class="_c blank"> </span>a <span class="_c blank"> </span>mínima </div><div class="t m2 x1 h4 y73 ff2 fs2 fc0 sc0 ls0 ws0">segurança para estrutura. </div><div class="t m2 x14 h4 y74 ff2 fs2 fc0 sc0 ls0 ws0">No <span class="_3 blank"> </span>item <span class="_f blank"> </span>9.5.2 <span class="_3 blank"> </span>da <span class="_3 blank"> </span>mesma, <span class="_f blank"> </span>é <span class="_1 blank"> </span>me<span class="_0 blank"> </span>ncionado <span class="_f blank"> </span>s<span class="_2 blank"></span>obre <span class="_f blank"> </span>as <span class="_3 blank"> </span>emendas <span class="_3 blank"> </span>por <span class="_f blank"> </span>tr<span class="_2 blank"></span>ans<span class="_0 blank"> </span>passe. </div><div class="t m2 x1 h4 y75 ff2 fs2 fc0 sc0 ls0 ws0">Neste it<span class="_2 blank"></span>em é <span class="_8 blank"></span>dito q<span class="_2 blank"></span>ue<span class="_0 blank"> </span> <span class="_2 blank"></span>não se <span class="_8 blank"></span>é permitido <span class="_8 blank"></span>real<span class="_0 blank"> </span>izar <span class="_2 blank"></span>transpasses <span class="_2 blank"></span>em <span class="_2 blank"></span>barras que <span class="_2 blank"></span>possuam </div><div class="t m2 x1 h4 y76 ff2 fs2 fc0 sc0 ls0 ws0">diâmetros <span class="_1 blank"> </span>maiores <span class="_3 blank"> </span>que <span class="_3 blank"> </span>32 <span class="_1 blank"> </span>mm <span class="_3 blank"> </span>e <span class="_1 blank"> </span>que<span class="_0 blank"> </span> <span class="_3 blank"> </span>se <span class="_0 blank"> </span>f<span class="_0 blank"> </span>az <span class="_1 blank"> </span>necessário <span class="_3 blank"> </span>ter <span class="_1 blank"> </span>maior<span class="_0 blank"> </span> <span class="_1 blank"> </span>caute<span class="_0 blank"> </span>la <span class="_1 blank"> </span>no <span class="_1 blank"> </span>que<span class="_0 blank"> </span> <span class="_1 blank"> </span>diz </div><div class="t m2 x1 h4 y77 ff2 fs2 fc0 sc0 ls0 ws0">respeito a <span class="_2 blank"></span>anc<span class="_0 blank"> </span>oragem <span class="_2 blank"></span>e a armadura <span class="_2 blank"></span>de costura <span class="_2 blank"></span>dos tirantes. A <span class="_2 blank"></span>norma ressalta so<span class="_2 blank"></span>bre a </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><div class="t m2 x13 h4 y1f ff2 fs2 fc0 sc0 ls0 ws0">4 </div><div class="t m2 x1 h4 y20 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y41 ff2 fs2 fc0 sc0 ls0 ws0">armadura de <span class="_2 blank"></span>costura, pois, <span class="_2 blank"></span>é por <span class="_2 blank"></span>meio <span class="_2 blank"></span>de<span class="_0 blank"> </span>la q<span class="_2 blank"></span>ue se <span class="_2 blank"></span>ocorre a <span class="_2 blank"></span>união do <span class="_2 blank"></span>trabalho de <span class="_2 blank"></span>duas </div><div class="t m2 x1 h4 y42 ff2 fs2 fc0 sc0 ls0 ws0">estruturas dife<span class="_0 blank"> </span>rentes, fazendo com que as duas estruturas trabalhem estruturalmente </div><div class="t m2 x1 h4 y78 ff2 fs2 fc0 sc0 ls0 ws0">como uma só. </div><div class="t m2 x14 h4 y79 ff2 fs2 fc0 sc0 ls0 ws0">A <span class="_11 blank"> </span>norma <span class="_11 blank"> </span>também <span class="_11 blank"> </span>afirma <span class="_11 blank"> </span>que <span class="_11 blank"> </span>os <span class="_11 blank"> </span>tira<span class="_2 blank"></span>nt<span class="_0 blank"> </span>es <span class="_11 blank"> </span>devem <span class="_11 blank"> </span>ter <span class="_11 blank"> </span>alguns <span class="_11 blank"> </span>cuidados,<span class="_2 blank"></span> </div><div class="t m2 x1 h4 y7a ff2 fs2 fc0 sc0 ls0 ws0">principalmente <span class="_0 blank"> </span>na fa<span class="_0 blank"> </span>se <span class="_0 blank"> </span>de <span class="_0 blank"> </span>projeto. Entr<span class="_0 blank"> </span>e esses <span class="_0 blank"> </span>cuidado<span class="_0 blank"> </span>s está <span class="_0 blank"> </span>o <span class="_0 blank"> </span>cuidado de <span class="_0 blank"> </span>projet<span class="_0 blank"> </span>ar o </div><div class="t m2 x1 h4 y7b ff2 fs2 fc0 sc0 ls0 ws0">mesmo <span class="_0 blank"> </span>em<span class="_0 blank"> </span> <span class="_0 blank"> </span>uma <span class="_0 blank"> </span>área <span class="_1 blank"> </span>que <span class="_1 blank"> </span>permita <span class="_0 blank"> </span>uma <span class="_1 blank"> </span>fácil <span class="_0 blank"> </span>m<span class="_0 blank"> </span>anutenção <span class="_0 blank"> </span>pós<span class="_0 blank"> </span> <span class="_0 blank"> </span>deformação, <span class="_1 blank"> </span>o <span class="_0 blank"> </span>cuidado </div><div class="t m2 x1 h4 y7c ff2 fs2 fc0 sc0 ls0 ws0">de <span class="_c blank"> </span>ter <span class="_c blank"> </span>sua <span class="_c blank"> </span>representação <span class="_c blank"> </span>baseada <span class="_c blank"> </span>nos <span class="_c blank"> </span>seus <span class="_d blank"> </span>eixos <span class="_c blank"> </span>longitudinai<span class="_0 blank"> </span>s <span class="_c blank"> </span>além <span class="_c blank"> </span>de <span class="_d blank"> </span>te<span class="_0 blank"> </span>r <span class="_c blank"> </span>seus </div><div class="t m2 x1 h4 y7d ff2 fs2 fc0 sc0 ls0 ws0">comprimentos <span class="_1 blank"> </span>marcados <span class="_1 blank"> </span>com <span class="_3 blank"> </span>base <span class="_0 blank"> </span>no<span class="_0 blank"> </span>s <span class="_1 blank"> </span>centros <span class="_1 blank"> </span>dos <span class="_1 blank"> </span>apoios <span class="_1 blank"> </span>ou <span class="_1 blank"> </span>no<span class="_0 blank"> </span>s <span class="_1 blank"> </span>cruzamentos <span class="_1 blank"> </span>dos </div><div class="t m2 x1 h4 y7e ff2 fs2 fc0 sc0 ls0 ws0">eixos com outros elementos. Todos e<span class="_0 blank"> </span>sses cuidados devem ser realizados para que a </div><div class="t m2 x1 h4 y7f ff2 fs2 fc0 sc0 ls0 ws0">integridade <span class="_3 blank"> </span>do <span class="_3 blank"> </span>cobrimento <span class="_1 blank"> </span>da <span class="_3 blank"> </span>pe<span class="_0 blank"> </span>ça <span class="_1 blank"> </span>seja <span class="_3 blank"> </span>mantida, <span class="_3 blank"> </span>tendo <span class="_1 blank"> </span>em <span class="_3 blank"> </span>vista, <span class="_3 blank"> </span>que <span class="_1 blank"> </span>o <span class="_f blank"> </span>tira<span class="_2 blank"></span>nt<span class="_0 blank"> </span>e <span class="_1 blank"> </span>sofre </div><div class="t m2 x1 h4 y80 ff2 fs2 fc0 sc0 ls0 ws0">uma g<span class="_2 blank"></span>rand<span class="_0 blank"> </span>e exig<span class="_2 blank"></span>ência de esforços <span class="_2 blank"></span>de tração <span class="_2 blank"></span>e qualquer <span class="_2 blank"></span>parâm<span class="_0 blank"> </span>etro <span class="_2 blank"></span>mínimo que <span class="_2 blank"></span>pos<span class="_0 blank"> </span>sa </div><div class="t m2 x1 h4 y81 ff2 fs2 fc0 sc0 ls0 ws0">auxiliar deve ser mantido <span class="_0 blank"> </span>de forma integra. </div><div class="t m2 x14 h4 y82 ff2 fs2 fc0 sc0 ls0 ws0"> Na <span class="_3 blank"> </span>seção <span class="_1 blank"> </span>17.2.1 <span class="_3 blank"> </span>da <span class="_1 blank"> </span>ref<span class="_0 blank"> </span>erida, <span class="_1 blank"> </span>são <span class="_3 blank"> </span>estabelecidos <span class="_3 blank"> </span>critérios <span class="_1 blank"> </span>que <span class="_3 blank"> </span>vão <span class="_1 blank"> </span>auxiliar <span class="_3 blank"> </span>na </div><div class="t m2 x1 h4 y83 ff2 fs2 fc0 sc0 ls0 ws0">determinação <span class="_1 blank"> </span>do<span class="_0 blank"> </span>s <span class="_1 blank"> </span>esforços <span class="_1 blank"> </span>do<span class="_0 blank"> </span>s <span class="_1 blank"> </span>tirantes <span class="_1 blank"> </span>quando <span class="_1 blank"> </span>os <span class="_3 blank"> </span>mesmos <span class="_1 blank"> </span>estiverem<span class="_0 blank"> </span> <span class="_1 blank"> </span>submetidos <span class="_1 blank"> </span>a </div><div class="t m2 x1 h4 y84 ff2 fs2 fc0 sc0 ls0 ws0">força <span class="_12 blank"> </span>normal <span class="_12 blank"> </span>e <span class="_13 blank"> </span>momentos <span class="_13 blank"> </span>f<span class="_0 blank"> </span>letores. <span class="_13 blank"> </span>Ainda <span class="_13 blank"> </span>no<span class="_0 blank"> </span> <span class="_13 blank"> </span>m<span class="_0 blank"> </span>esmo <span class="_13 blank"> </span>item, <span class="_12 blank"> </span>é <span class="_13 blank"> </span>dito <span class="_12 blank"> </span>que <span class="_12 blank"> </span>no </div><div class="t m2 x1 h4 y85 ff2 fs2 fc0 sc0 ls0 ws0">dimensionamento <span class="_14 blank"> </span>das <span class="_14 blank"> </span>armaduras <span class="_14 blank"> </span>longitudin<span class="_2 blank"></span>ais <span class="_14 blank"> </span>devem <span class="_14 blank"> </span>ser <span class="_14 blank"> </span>levados em<span class="_0 blank"> </span> <span class="_14 blank"> </span>conta os </div><div class="t m2 x1 h4 y86 ff2 fs2 fc0 sc0 ls0 ws0">conjuntos <span class="_f blank"> </span>de <span class="_3 blank"> </span>esforços <span class="_f blank"> </span>resistentes <span class="_f blank"> </span>par<span class="_2 blank"></span>a <span class="_f blank"> </span>que <span class="_3 blank"> </span>po<span class="_0 blank"> </span>r <span class="_3 blank"> </span>mei<span class="_0 blank"> </span>o <span class="_f blank"> </span>dos <span class="_1 blank"> </span>m<span class="_0 blank"> </span>esmos <span class="_3 blank"> </span>po<span class="_0 blank"> </span>ssa-se <span class="_3 blank"> </span>che<span class="_0 blank"> </span>gar </div><div class="t m2 x1 h4 y87 ff2 fs2 fc0 sc0 ls0 ws0">nas envoltórias de esforços solicitantes<span class="_0 blank"> </span>. </div><div class="t m2 x1 h4 y88 ff2 fs2 fc0 sc0 ls0 ws0">1.3 DETALHAMENTO </div><div class="t m2 x1 ha y89 ff7 fs2 fc0 sc0 ls0 ws0">1.3.1 FISSURAÇÃO </div><div class="t m2 x1 h4 y8a ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>Sabendo <span class="_16 blank"> </span>que <span class="_16 blank"> </span>os <span class="_16 blank"> </span>tirantes <span class="_16 blank"> </span>s<span class="_2 blank"></span>ão <span class="_16 blank"> </span>estruturas <span class="_16 blank"> </span>submetidas <span class="_16 blank"> </span>a <span class="_17 blank"> </span>cargas </div><div class="t m2 x1 h4 y8b ff2 fs2 fc0 sc0 ls0 ws0">predominantemente de tração, é <span class="_14 blank"> </span>nec<span class="_2 blank"></span>es<span class="_0 blank"> </span>sário fazer o cálculo de armadu<span class="_0 blank"> </span>ras para </div><div class="t m2 x1 h4 y8c ff2 fs2 fc0 sc0 ls0 ws0">combater <span class="_18 blank"> </span>este <span class="_18 blank"> </span>esforço, <span class="_18 blank"> </span>com <span class="_18 blank"> </span>is<span class="_2 blank"></span>so, o<span class="_2 blank"></span> <span class="_18 blank"> </span>surgimento <span class="_18 blank"> </span>das <span class="_18 blank"> </span>fissuras <span class="_18 blank"> </span>é <span class="_18 blank"> </span>em <span class="_e blank"> </span>muitos<span class="_0 blank"> </span> <span class="_18 blank"> </span>casos<span class="_2 blank"></span> </div><div class="t m2 x1 h4 y8d ff2 fs2 fc0 sc0 ls0 ws0">inevitáveis, <span class="_8 blank"></span>uma <span class="_2 blank"></span>vez <span class="_8 blank"></span>que, <span class="_2 blank"></span>a <span class="_8 blank"></span>resistência <span class="_8 blank"></span>à <span class="_2 blank"></span>tração <span class="_8 blank"></span>do <span class="_2 blank"></span>concreto <span class="_8 blank"></span>é <span class="_2 blank"></span>baix<span class="_2 blank"></span>a. <span class="_2 blank"></span>Para <span class="_8 blank"></span>Si<span class="_0 blank"> </span>lva <span class="_8 blank"></span>(2003), </div><div class="t m2 x1 h4 y8e ff2 fs2 fc0 sc0 ls0 ws0">as <span class="_8 blank"></span>f<span class="_0 blank"> </span>issuras <span class="_2 blank"></span>apesar <span class="_2 blank"></span>de <span class="_2 blank"></span>indesejáveis <span class="_2 blank"></span>são <span class="_8 blank"></span>ac<span class="_0 blank"> </span>eitáveis, <span class="_8 blank"></span>de<span class="_0 blank"> </span>ntro <span class="_2 blank"></span>de <span class="_8 blank"></span>cer<span class="_0 blank"> </span>tos <span class="_8 blank"></span>lim<span class="_0 blank"> </span>ites <span class="_2 blank"></span>no <span class="_2 blank"></span>concreto </div><div class="t m2 x1 h4 y8f ff2 fs2 fc0 sc0 ls0 ws0">armado, <span class="_f blank"> </span>é <span class="_f blank"> </span>indi<span class="_0 blank"> </span>spensáv<span class="_2 blank"></span>el<span class="_0 blank"> </span> <span class="_f blank"> </span>na <span class="_f blank"> </span>fa<span class="_0 blank"> </span>se <span class="_f blank"> </span>de <span class="_f blank"> </span>projeto <span class="_f blank"> </span>garant<span class="_0 blank"> </span>ir <span class="_f blank"> </span>que <span class="_f blank"> </span>as <span class="_f blank"> </span>fissuras <span class="_f blank"> </span>que <span class="_f blank"> </span>venham <span class="_f blank"> </span>a </div><div class="t m2 x1 h4 y57 ff2 fs2 fc0 sc0 ls0 ws0">ocorrer estejam dentro dos lim<span class="_0 blank"> </span>ites considerados nocivos. </div><div class="t m2 x1 h4 y90 ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>Segundo <span class="_c blank"> </span>o <span class="_c blank"> </span>mesmo <span class="_c blank"> </span>autor, <span class="_c blank"> </span>as <span class="_c blank"> </span>f<span class="_0 blank"> </span>issuras <span class="_c blank"> </span>podem <span class="_c blank"> </span>ser <span class="_c blank"> </span>divididas <span class="_c blank"> </span>em <span class="_c blank"> </span>fissuras <span class="_c blank"> </span>não </div><div class="t m2 x1 h4 y91 ff2 fs2 fc0 sc0 ls0 ws0">produzidas <span class="_18 blank"> </span>por <span class="_e blank"> </span>esf<span class="_0 blank"> </span>orços <span class="_e blank"> </span>solicit<span class="_0 blank"> </span>antes, <span class="_18 blank"> </span>que <span class="_18 blank"> </span>s<span class="_2 blank"></span>ão oriu<span class="_2 blank"></span>ndas <span class="_18 blank"> </span>da <span class="_18 blank"> </span>cura <span class="_e blank"> </span>do <span class="_18 blank"> </span>concreto, <span class="_18 blank"> </span>por </div><div class="t m2 x1 h4 y92 ff2 fs2 fc0 sc0 ls0 ws0">exemplo. <span class="_f blank"> </span>E <span class="_3 blank"> </span>as <span class="_3 blank"> </span>f<span class="_0 blank"> </span>issuras <span class="_3 blank"> </span>prod<span class="_0 blank"> </span>uzidas <span class="_3 blank"> </span>po<span class="_0 blank"> </span>r <span class="_3 blank"> </span>solicitações <span class="_f blank"> </span>causadas <span class="_3 blank"> </span>pelas <span class="_3 blank"> </span>açõe<span class="_0 blank"> </span>s <span class="_f blank"> </span>atuantes, </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf6" class="pf w0 h0" data-page-no="6"><div class="pc pc6 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x15 y93 w2 hb" alt="" src="https://files.passeidireto.com/14d199ed-aedb-4369-937d-17a9440360b8/bg6.png"><div class="t m2 x13 h4 y1f ff2 fs2 fc0 sc0 ls0 ws0">5 </div><div class="t m2 x1 h4 y20 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y41 ff2 fs2 fc0 sc0 ls0 ws0">que <span class="_18 blank"> </span>estão <span class="_e blank"> </span>relacionadas <span class="_18 blank"> </span>ao <span class="_e blank"> </span>efeito <span class="_18 blank"> </span>causador, <span class="_e blank"> </span>e <span class="_18 blank"> </span>podem <span class="_18 blank"> </span>ser <span class="_c blank"> </span>f<span class="_0 blank"> </span>issuras <span class="_18 blank"> </span>de <span class="_e blank"> </span>separação, </div><div class="t m2 x1 h4 y42 ff2 fs2 fc0 sc0 ls0 ws0">fissuras de flexão ou fissuras de cisal<span class="_0 blank"> </span>hamento. </div><div class="t m2 x16 h5 y94 ff3 fs2 fc0 sc0 ls0 ws0">FIGURA 1 \u2013<span class="ff2"> Tipos d<span class="_0 blank"> </span>e fissuras provocadas por solicitações causadas pelas açõe<span class="_0 blank"> </span>s </span></div><div class="t m2 x17 h4 y95 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x18 h5 y96 ff3 fs2 fc0 sc0 ls0 ws0">FONTE \u2013<span class="ff2"> Vi<span class="_0 blank"> </span>gas de concreto armado com telas soldadas: análise teórica e </span></div><div class="t m2 x19 h4 y97 ff2 fs2 fc0 sc0 ls0 ws0">experimental da resistência à força cortant<span class="_0 blank"> </span>e e do controle da fissuração (SILVA, </div><div class="t m2 xf h4 y98 ff2 fs2 fc0 sc0 ls3 ws0">2003) </div><div class="t m2 x1 h4 y99 ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>A <span class="_3 blank"> </span>NBR <span class="_3 blank"> </span>6118/2014 <span class="_3 blank"> </span>estabelece <span class="_f blank"> </span>v<span class="_2 blank"></span>alores <span class="_3 blank"> </span>admissíveis <span class="_3 blank"> </span>entre <span class="_3 blank"> </span>0,2 <span class="_3 blank"> </span>a <span class="_3 blank"> </span>0,4 <span class="_3 blank"> </span>mm, <span class="_3 blank"> </span>desde </div><div class="t m2 x1 h4 y9a ff2 fs2 fc0 sc0 ls0 ws0">que, não <span class="_2 blank"></span>apresentem disfunções <span class="_2 blank"></span>as ar<span class="_2 blank"></span>maduras passivas. <span class="_2 blank"></span>Assim como, <span class="_2 blank"></span>determina que </div><div class="t m2 x1 h4 y9b ff2 fs2 fc0 sc0 ls0 ws0">tal <span class="_5 blank"> </span>f<span class="_0 blank"> </span>enômeno <span class="_11 blank"> </span>dev<span class="_2 blank"></span>a <span class="_11 blank"> </span>ser <span class="_5 blank"> </span>cont<span class="_0 blank"> </span>rolado <span class="_11 blank"> </span>v<span class="_2 blank"></span>isando <span class="_11 blank"> </span>ev<span class="_2 blank"></span>itar<span class="_0 blank"> </span> <span class="_5 blank"> </span>transt<span class="_0 blank"> </span>ornos <span class="_5 blank"> </span>psicológicos <span class="_11 blank"> </span>aos </div><div class="t m2 x1 h4 y9c ff2 fs2 fc0 sc0 ls0 ws0">usuários. <span class="_f blank"> </span>A <span class="_f blank"> </span>norma <span class="_10 blank"> </span>também <span class="_f blank"> </span>estabelece <span class="_f blank"> </span>valores <span class="_f blank"> </span>limites <span class="_f blank"> </span>de <span class="_f blank"> </span>abertura <span class="_f blank"> </span>car<span class="_0 blank"> </span>acterística <span class="_f blank"> </span>de </div><div class="t m2 x1 h4 y9d ff2 fs2 fc0 sc0 ls0 ws0">fissura <span class="_3 blank"> </span>levando <span class="_1 blank"> </span>em<span class="_0 blank"> </span> <span class="_3 blank"> </span>consideração <span class="_1 blank"> </span>exigências <span class="_3 blank"> </span>de<span class="_0 blank"> </span> <span class="_1 blank"> </span>durabi<span class="_0 blank"> </span>lidade <span class="_1 blank"> </span>em <span class="_3 blank"> </span>função <span class="_3 blank"> </span>das <span class="_3 blank"> </span>classes </div><div class="t m2 x1 h4 y9e ff2 fs2 fc0 sc0 ls0 ws0">de agressividade do am<span class="_0 blank"> </span>biente, dispostos na tabela 13.4, pa<span class="_0 blank"> </span>g. 98. </div><div class="t m2 x1 ha y9f ff7 fs2 fc0 sc0 ls0 ws0">1.3.2 EMENDAS </div><div class="t m2 x1 h4 ya0 ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>A <span class="_18 blank"> </span>norma <span class="_18 blank"> </span>determina <span class="_18 blank"> </span>alguns <span class="_18 blank"> </span>parâmetros <span class="_18 blank"> </span>para <span class="_18 blank"> </span>o <span class="_18 blank"> </span>resultado <span class="_18 blank"> </span>satis<span class="_2 blank"></span>f<span class="_0 blank"> </span>atório, <span class="_18 blank"> </span>neste </div><div class="t m2 x1 h4 ya1 ff2 fs2 fc0 sc0 ls0 ws0">requisito. <span class="_0 blank"> </span>Onde para barras emend<span class="_0 blank"> </span>adas se estiver distânci<span class="_0 blank"> </span>a livre compreend<span class="_0 blank"> </span>ida entre </div><div class="t m2 x1 h4 ya2 ff2 fs2 fc0 sc0 ls0 ws0">0 e 4<span class="ff9 ls4">\u2205</span>, o comprimento para t<span class="_0 blank"> </span>rechos de traspasse em barras tracionadas deve ser: </div><div class="t m2 x1a hc ya3 ff9 fs4 fc0 sc0 ls0 ws0"> \ue748<span class="fs5 ws2 v1">\ueb34\uebe7 </span>=<span class="_d blank"> </span> <span class="_c blank"> </span>\ue7d9<span class="fs5 ws3 v1">\ueb34\uebe7 </span> \ue754 <span class="_0 blank"> </span>\ue748<span class="fs5 ws4 v1">\uebd5 ,\uebe1\uebd8\uebd6<span class="_18 blank"> </span></span> <span class="_d blank"> </span>\ued52<span class="_c blank"> </span> <span class="_10 blank"> </span>\ue748<span class="_0 blank"> </span><span class="fs5 ws5 v1">\ueb34\uebe7 ,\uebe0\uebdc\uebe1<span class="_3 blank"> </span></span><span class="ff2"> </span></div><div class="t m2 x1b h4 ya4 ff2 fs2 fc0 sc0 ls0 ws0">Onde: </div><div class="t m2 x1c hd ya5 ffa fs2 fc0 sc0 ls5">\uf0b7<span class="ff2 ls6 ws0"> <span class="ff9 fs4 ls7">\ue748<span class="fs5 ls0 ws6 v1">\ueb34\uebe7 ,\uebe0\uebdc\uebe1<span class="_3 blank"> </span></span></span><span class="ls0"> é <span class="_0 blank"> </span>o maior valor entre 0,3 <span class="ff9 ls8">\ue7d9<span class="fs6 ls0 ws7 v2">\ueb34\uebe7 </span><span class="ls0"> \ue754<span class="_0 blank"> </span> \ue748<span class="_0 blank"> </span><span class="fs6 ls9 v2">\uebd5</span></span></span>, 15<span class="ff9 ls4">\u2205</span> e 200 mm; </span></span></div><div class="t m2 x1c he ya6 ffa fs2 fc0 sc0 ls5">\uf0b7<span class="ff2 ls6 ws0"> <span class="ff9 fs7 lsa">\ue7d9<span class="fs8 ls0 ws8 v3">\ueb34\uebe7 </span></span><span class="ls0"> <span class="_0 blank"> </span>é <span class="_0 blank"> </span>o <span class="_0 blank"> </span>coeficiente <span class="_0 blank"> </span>função <span class="_0 blank"> </span>da <span class="_0 blank"> </span>porcentagem <span class="_0 blank"> </span>de <span class="_0 blank"> </span>barras <span class="_0 blank"> </span>emendadas <span class="_0 blank"> </span>na m<span class="_0 blank"> </span>esma </span></span></div><div class="t m2 x1d h4 ya7 ff2 fs2 fc0 sc0 ls0 ws0">seção, estabelecido pela ta<span class="_0 blank"> </span>bela 9.4, pag. 61, da referida norma. </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf7" class="pf w0 h0" data-page-no="7"><div class="pc pc7 w0 h0"><div class="t m2 x13 h4 y1f ff2 fs2 fc0 sc0 ls0 ws0">6 </div><div class="t m2 x1 h4 y20 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y41 ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>Quando <span class="_18 blank"> </span>a <span class="_18 blank"> </span>distância <span class="_e blank"> </span>livre <span class="_18 blank"> </span>ent<span class="_0 blank"> </span>re <span class="_e blank"> </span>ba<span class="_0 blank"> </span>rras <span class="_18 blank"> </span>emendadas <span class="_e blank"> </span>f<span class="_0 blank"> </span>or <span class="_18 blank"> </span>maior <span class="_18 blank"> </span>que<span class="_2 blank"></span> 4<span class="ff9 lsb">\u2205</span>, <span class="_e blank"> </span>deve </div><div class="t m2 x1 h4 ya8 ff2 fs2 fc0 sc0 ls0 ws0">acrescer <span class="_13 blank"> </span>no <span class="_13 blank"> </span>v<span class="_2 blank"></span>alor <span class="_13 blank"> </span>ante<span class="_0 blank"> </span>riormente <span class="_19 blank"> </span>calculado <span class="_19 blank"> </span>a <span class="_19 blank"> </span>distân<span class="_0 blank"> </span>cia <span class="_19 blank"> </span>livre <span class="_19 blank"> </span>ent<span class="_0 blank"> </span>re <span class="_19 blank"> </span>as <span class="_13 blank"> </span>barras </div><div class="t m2 x1 h4 ya9 ff2 fs2 fc0 sc0 ls0 ws0">emendadas, <span class="_f blank"> </span>além <span class="_3 blank"> </span>de, <span class="_3 blank"> </span>acrescentar <span class="_f blank"> </span>armadura <span class="_3 blank"> </span>transversal <span class="_f blank"> </span>para <span class="_3 blank"> </span>melhor <span class="_f blank"> </span>interação <span class="_3 blank"> </span>aço-</div><div class="t m2 x1 h4 yaa ff2 fs2 fc0 sc0 ls0 ws0">concreto. <span class="_3 blank"> </span>Pa<span class="_0 blank"> </span>ra <span class="_3 blank"> </span><span class="ff9 lsc">\u2205</span> <span class="_3 blank"> </span>< <span class="_3 blank"> </span>16 <span class="_f blank"> </span>mm <span class="_3 blank"> </span>e <span class="_3 blank"> </span>a <span class="_f blank"> </span>parcela <span class="_3 blank"> </span>das <span class="_3 blank"> </span>barras <span class="_3 blank"> </span>em<span class="_0 blank"> </span>endadas <span class="_3 blank"> </span>na <span class="_3 blank"> </span>mesma <span class="_f blank"> </span>seção <span class="_1 blank"> </span>f<span class="_0 blank"> </span>or </div><div class="t m2 x1 h4 yab ff2 fs2 fc0 sc0 ls0 ws0">menos <span class="_c blank"> </span>que <span class="_d blank"> </span>25%, <span class="_d blank"> </span>obedec<span class="_0 blank"> </span>e <span class="_d blank"> </span>ao<span class="_0 blank"> </span> <span class="_d blank"> </span>que <span class="_c blank"> </span>está <span class="_d blank"> </span>disposto <span class="_c blank"> </span>no <span class="_d blank"> </span>item <span class="_d blank"> </span>9.4.2.<span class="_0 blank"> </span>6, <span class="_d blank"> </span>pág. <span class="_c blank"> </span>59. <span class="_d blank"> </span>Porém, </div><div class="t m2 x1 h4 yac ff2 fs2 fc0 sc0 ls0 ws0">quando <span class="_10 blank"> </span>ultrapassar <span class="_10 blank"> </span>um <span class="_10 blank"> </span>des<span class="_0 blank"> </span>tes <span class="_10 blank"> </span>parâmetros <span class="_f blank"> </span>a <span class="_d blank"> </span>NBR <span class="_10 blank"> </span>6118/2014 <span class="_10 blank"> </span>descreve <span class="_f blank"> </span>co<span class="_0 blank"> </span>mo <span class="_10 blank"> </span>deve </div><div class="t m2 x1 h4 yad ff2 fs2 fc0 sc0 ls0 ws0">prosseguir </div><div class="t m2 x1e h8 yae ff2 fs3 fc0 sc0 ls0 ws0">\u201cNos <span class="_d blank"> </span>casos <span class="_d blank"> </span>em<span class="_2 blank"></span> <span class="_d blank"> </span>que <span class="_c blank"> </span>\u03c6<span class="_2 blank"></span> <span class="_d blank"> </span>\u2265<span class="_0 blank"> </span> <span class="_d blank"> </span>16 <span class="_10 blank"> </span>mm <span class="_d blank"> </span>ou <span class="_d blank"> </span>quando <span class="_10 blank"> </span>a <span class="_d blank"> </span>proporção <span class="_d blank"> </span>de <span class="_d blank"> </span>barras </div><div class="t m2 x1e h8 yaf ff2 fs3 fc0 sc0 ls0 ws0">emendadas <span class="_1 blank"> </span>na <span class="_1 blank"> </span>mesma <span class="_1 blank"> </span>seção <span class="_1 blank"> </span>f<span class="_0 blank"> </span>or <span class="_1 blank"> </span>maior <span class="_1 blank"> </span>ou <span class="_3 blank"> </span>igual <span class="_1 blank"> </span>a <span class="_3 blank"> </span>25 <span class="_1 blank"> </span>%, <span class="_1 blank"> </span>a <span class="_3 blank"> </span>armadura </div><div class="t m2 x1e h8 yb0 ff2 fs3 fc0 sc0 ls0 ws0">transversal deve:<span class="_2 blank"></span> </div><div class="t m2 x1e h8 yb1 ff2 fs3 fc0 sc0 ls0 ws0">\u2014 <span class="_0 blank"> </span>ser <span class="_0 blank"> </span>capaz <span class="_0 blank"> </span>de <span class="_0 blank"> </span>resistir <span class="_0 blank"> </span>a <span class="_0 blank"> </span>uma <span class="_0 blank"> </span>força <span class="_0 blank"> </span>igual <span class="_0 blank"> </span>à <span class="_0 blank"> </span>de <span class="_1 blank"> </span>uma <span class="_0 blank"> </span>barra <span class="_0 blank"> </span>emendada, </div><div class="t m2 x1e h8 yb2 ff2 fs3 fc0 sc0 ls0 ws0">considerando os<span class="_2 blank"></span> <span class="_0 blank"> </span>ramos p<span class="_2 blank"></span>aralelos ao plano da emenda;<span class="_2 blank"></span> </div><div class="t m2 x1e h8 yb3 ff2 fs3 fc0 sc0 ls0 ws0">\u2014 <span class="_f blank"> </span>ser <span class="_f blank"> </span>constituí<span class="_2 blank"></span>da <span class="_f blank"> </span>por <span class="_f blank"> </span>barras <span class="_f blank"> </span>fechadas <span class="_f blank"> </span>se <span class="_f blank"> </span>a <span class="_f blank"> </span>distâ<span class="_2 blank"></span>ncia <span class="_f blank"> </span>entre <span class="_f blank"> </span>as <span class="_f blank"> </span>duas </div><div class="t m2 x1e h8 yb4 ff2 fs3 fc0 sc0 ls0 ws0">barra mais <span class="_1 blank"> </span>próxima <span class="_0 blank"> </span>de <span class="_0 blank"> </span>duas emendas <span class="_0 blank"> </span>na m<span class="_0 blank"> </span>esma seção <span class="_0 blank"> </span>for <span class="_0 blank"> </span>< <span class="_0 blank"> </span>10 <span class="_0 blank"> </span>\u03c6 <span class="_0 blank"> </span>(\u03c6 </div><div class="t m2 x1e h8 yb5 ff2 fs3 fc0 sc0 ls0 ws0">= diâmetro da barra<span class="_2 blank"></span> <span class="_0 blank"> </span>emen<span class="_2 blank"></span>dada); </div><div class="t m2 x1e h8 yb6 ff2 fs3 fc0 sc0 ls0 ws0">\u2014 concentrar-se nos<span class="_2 blank"></span> t<span class="_0 blank"> </span>erç<span class="_2 blank"></span>os <span class="_0 blank"> </span>extremos da e<span class="_2 blank"></span>menda.\u201d </div><div class="t m2 x1 ha yb7 ff7 fs2 fc0 sc0 ls0 ws0">1.3.3 ANCORAGEM </div><div class="t m2 x1 h4 yb8 ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>A <span class="_1 blank"> </span>ancoragem <span class="_1 blank"> </span>tem <span class="_1 blank"> </span>a <span class="_1 blank"> </span>função<span class="_0 blank"> </span> <span class="_0 blank"> </span>de <span class="_1 blank"> </span>pas<span class="_0 blank"> </span>sar <span class="_0 blank"> </span>par<span class="_0 blank"> </span>a <span class="_0 blank"> </span>o <span class="_1 blank"> </span>concreto <span class="_3 blank"> </span>todas <span class="_0 blank"> </span>as <span class="_1 blank"> </span>f<span class="_0 blank"> </span>orças <span class="_0 blank"> </span>que <span class="_1 blank"> </span>as </div><div class="t m2 x1 h4 yb9 ff2 fs2 fc0 sc0 ls0 ws0">barras <span class="_14 blank"> </span>das <span class="_14 blank"> </span>armaduras <span class="_14 blank"> </span>estejam <span class="_14 blank"> </span>submetidas, <span class="_14 blank"> </span>seja <span class="_14 blank"> </span>por<span class="_0 blank"> </span> <span class="_14 blank"> </span>meio <span class="_14 blank"> </span>de <span class="_14 blank"> </span>aderência <span class="_14 blank"> </span>ou <span class="_14 blank"> </span>de </div><div class="t m2 x1 h4 yba ff2 fs2 fc0 sc0 ls0 ws0">dispositivos mecânicos ou por com<span class="_0 blank"> </span>binação de ambos. </div><div class="t m2 x1 h4 ybb ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>Segundo <span class="_d blank"> </span>a <span class="_c blank"> </span>NBR6118/2014, <span class="_d blank"> </span>as <span class="_d blank"> </span>barras <span class="_d blank"> </span>tracionadas <span class="_d blank"> </span>podem <span class="_c blank"> </span>ser <span class="_10 blank"> </span>an<span class="_0 blank"> </span>coradas <span class="_d blank"> </span>ao </div><div class="t m2 x1 h4 ybc ff2 fs2 fc0 sc0 ls0 ws0">longo <span class="_5 blank"> </span>de <span class="_1a blank"> </span>um <span class="_1a blank"> </span>comprimento <span class="_5 blank"> </span>retilíneo <span class="_1a blank"> </span>ou <span class="_1a blank"> </span>com <span class="_5 blank"> </span>grande <span class="_1a blank"> </span>raio <span class="_5 blank"> </span>de <span class="_1a blank"> </span>curvatura <span class="_5 blank"> </span>na <span class="_1a blank"> </span>sua </div><div class="t m2 x1 h4 ybd ff2 fs2 fc0 sc0 ls0 ws0">extremidade, <span class="_f blank"> </span>desde <span class="_3 blank"> </span>que, <span class="_f blank"> </span>algumas <span class="_3 blank"> </span>condições <span class="_3 blank"> </span>sej<span class="_0 blank"> </span>am <span class="_f blank"> </span>atendidas, <span class="_3 blank"> </span>tais <span class="_3 blank"> </span>com<span class="_0 blank"> </span>o, <span class="_3 blank"> </span>as <span class="_f blank"> </span>barras </div><div class="t m2 x1 h4 ybe ff2 fs2 fc0 sc0 ls0 ws0">lisas <span class="_19 blank"> </span>devem <span class="_19 blank"> </span>conter <span class="_1b blank"> </span>ganchos <span class="_19 blank"> </span>obrigatoriamente; <span class="_19 blank"> </span>quando <span class="_1b blank"> </span>houver <span class="_19 blank"> </span>alternância <span class="_19 blank"> </span>de </div><div class="t m2 x1 h4 ybf ff2 fs2 fc0 sc0 ls0 ws0">solicitações, <span class="_2 blank"></span>de <span class="_2 blank"></span>tração <span class="_8 blank"></span>e co<span class="_2 blank"></span>m<span class="_0 blank"> </span>pressão, <span class="_8 blank"></span>despensa o<span class="_2 blank"></span> <span class="_2 blank"></span>gancho; <span class="_2 blank"></span>quando <span class="_8 blank"></span><span class="ff9 lsd">\u2205<span class="ff2 ls0"> <span class="_2 blank"></span>> <span class="_2 blank"></span>32 <span class="_2 blank"></span>mm <span class="_2 blank"></span>ou <span class="_8 blank"></span>pa<span class="_0 blank"> </span>ra </span></span></div><div class="t m2 x1 h4 yc0 ff2 fs2 fc0 sc0 ls0 ws0">feixes <span class="_d blank"> </span>o <span class="_c blank"> </span>gancho <span class="_d blank"> </span>não <span class="_d blank"> </span>é <span class="_c blank"> </span>recomendado, <span class="_d blank"> </span>e <span class="_d blank"> </span>para <span class="_c blank"> </span>os <span class="_d blank"> </span>demais <span class="_c blank"> </span>c<span class="_2 blank"></span>asos <span class="_c blank"> </span>pode <span class="_10 blank"> </span>f<span class="_0 blank"> </span>azer <span class="_d blank"> </span>uso <span class="_c blank"> </span>do </div><div class="t m2 x1 h4 yc1 ff2 fs2 fc0 sc0 ls0 ws0">gancho ou não. </div><div class="t m2 x1 h4 yc2 ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>Os <span class="_f blank"> </span>ganchos <span class="_f blank"> </span>podem <span class="_f blank"> </span>ser <span class="_f blank"> </span>semicirculares, <span class="_f blank"> </span>onde <span class="_f blank"> </span>seu <span class="_f blank"> </span>co<span class="_2 blank"></span>m<span class="_0 blank"> </span>primento <span class="_f blank"> </span>não <span class="_f blank"> </span>pode <span class="_f blank"> </span>ser </div><div class="t m2 x1 hc yc3 ff2 fs2 fc0 sc0 ls0 ws0">inferior <span class="_0 blank"> </span>a <span class="_1 blank"> </span>2<span class="ff9 lse">\u2205</span> <span class="_0 blank"> </span>e <span class="_1 blank"> </span>com<span class="_0 blank"> </span> <span class="_0 blank"> </span>ponta <span class="_0 blank"> </span>reta,<span class="_0 blank"> </span> <span class="_0 blank"> </span>ou <span class="_1 blank"> </span>com <span class="_0 blank"> </span>ân<span class="_0 blank"> </span>gulo <span class="_0 blank"> </span>interno <span class="_1 blank"> </span>de <span class="_0 blank"> </span>45<span class="fs4">º <span class="_1 blank"> </span></span>onde <span class="_1 blank"> </span>seu <span class="_1 blank"> </span>comprimento </div><div class="t m2 x1 h4 yc4 ff2 fs2 fc0 sc0 ls0 ws0">não <span class="_1a blank"> </span>pode <span class="_14 blank"> </span>ult<span class="_0 blank"> </span>rapassar <span class="_1a blank"> </span>4<span class="ff9 lsc">\u2205</span> <span class="_14 blank"> </span>e <span class="_1a blank"> </span>sua <span class="_1a blank"> </span>ponta <span class="_14 blank"> </span>pode <span class="_1a blank"> </span>ser <span class="_1a blank"> </span>ret<span class="_2 blank"></span>a,<span class="_0 blank"> </span> <span class="_1a blank"> </span>ou <span class="_14 blank"> </span>com <span class="_1a blank"> </span>ângulo <span class="_1a blank"> </span>reto <span class="_1a blank"> </span>d<span class="_2 blank"></span>e </div><div class="t m2 x1 h4 yc5 ff2 fs2 fc0 sc0 ls0 ws0">comprimento não inferior a 8<span class="ff9 lsd">\u2205</span> e <span class="_2 blank"></span>sua<span class="_0 blank"> </span> ponta reta. <span class="_2 blank"></span>Pa<span class="_0 blank"> </span>ra barras lisas, os <span class="_2 blank"></span>ganchos<span class="_0 blank"> </span> devem </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf8" class="pf w0 h0" data-page-no="8"><div class="pc pc8 w0 h0"><div class="t m2 x13 h4 y1f ff2 fs2 fc0 sc0 ls0 ws0">7 </div><div class="t m2 x1 h4 y20 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y41 ff2 fs2 fc0 sc0 ls0 ws0">ser <span class="_1 blank"> </span>semicirculares. <span class="_1 blank"> </span>Para <span class="_1 blank"> </span>o <span class="_1 blank"> </span>diâmetro <span class="_1 blank"> </span>interno <span class="_1 blank"> </span>da <span class="_1 blank"> </span>curvatura <span class="_1 blank"> </span>do <span class="_3 blank"> </span>gancho, <span class="_0 blank"> </span>a <span class="_1 blank"> </span>norma <span class="_1 blank"> </span>dispõe </div><div class="t m2 x1 h4 y42 ff2 fs2 fc0 sc0 ls0 ws0">da <span class="_f blank"> </span>Tabela <span class="_f blank"> </span>9.1, <span class="_3 blank"> </span>pág. <span class="_f blank"> </span>55, <span class="_f blank"> </span>valores <span class="_f blank"> </span>mínimos <span class="_3 blank"> </span>devem <span class="_f blank"> </span>ser <span class="_f blank"> </span>atendidos, <span class="_f blank"> </span>os<span class="_2 blank"></span> <span class="_f blank"> </span>quais <span class="_f blank"> </span>dependem </div><div class="t m2 x1 h4 y78 ff2 fs2 fc0 sc0 ls0 ws0">tanto da bitola a<span class="_0 blank"> </span> ser utiliz<span class="_2 blank"></span>ad<span class="_0 blank"> </span>a quanto do <span class="_0 blank"> </span>tipo de aço. </div><div class="t m2 x1 h4 yc6 ff2 fs2 fc0 sc0 ls0 ws0">1.4 COMPORTAMENTO EST<span class="_0 blank"> </span>RUTURAL </div><div class="t m2 x1b h4 yc7 ff2 fs2 fc0 sc0 ls0 ws0">O <span class="_0 blank"> </span>princípio <span class="_0 blank"> </span>de <span class="_0 blank"> </span>suportar <span class="_0 blank"> </span>o <span class="_0 blank"> </span>tabuleiro de <span class="_0 blank"> </span>ponte<span class="_0 blank"> </span>s com<span class="_0 blank"> </span> <span class="_0 blank"> </span>cabos ancorados <span class="_0 blank"> </span>em<span class="_0 blank"> </span> torres, </div><div class="t m2 x1 h4 yc8 ff2 fs2 fc0 sc0 ls0 ws0">já é con<span class="_2 blank"></span>he<span class="_0 blank"> </span>cido há v<span class="_2 blank"></span>ários séculos, só se <span class="_2 blank"></span>tornando uma opção i<span class="_2 blank"></span>nter<span class="_0 blank"> </span>essante no <span class="_2 blank"></span>início do </div><div class="t m2 x1 h4 yc9 ff2 fs2 fc0 sc0 ls0 ws0">século <span class="_1 blank"> </span>XIX, <span class="_3 blank"> </span>depois <span class="_1 blank"> </span>do <span class="_1 blank"> </span>desenvolvimento <span class="_3 blank"> </span>das <span class="_0 blank"> </span>ba<span class="_0 blank"> </span>rras <span class="_1 blank"> </span>de <span class="_1 blank"> </span>ferro <span class="_1 blank"> </span>forjado <span class="_3 blank"> </span>e <span class="_1 blank"> </span>mais <span class="_1 blank"> </span>tarde <span class="_1 blank"> </span>dos </div><div class="t m2 x1 h4 yca ff2 fs2 fc0 sc0 ls0 ws0">cordões <span class="_1 blank"> </span>de <span class="_1 blank"> </span>aço, <span class="_3 blank"> </span>que <span class="_0 blank"> </span>ofe<span class="_0 blank"> </span>reciam <span class="_0 blank"> </span>algum<span class="_0 blank"> </span>a <span class="_1 blank"> </span>garantia <span class="_1 blank"> </span>de <span class="_1 blank"> </span>resistência <span class="_1 blank"> </span>a <span class="_3 blank"> </span>esforços <span class="_1 blank"> </span>de <span class="_1 blank"> </span>tração. </div><div class="t m2 x1 h4 ycb ff2 fs2 fc0 sc0 ls0 ws0">Os tirantes são elementos<span class="_0 blank"> </span> de alta resistência à tração e normalmente são compostos </div><div class="t m2 x1 h4 ycc ff2 fs2 fc0 sc0 ls0 ws0">por <span class="_14 blank"> </span>cordoalhas, fios ou <span class="_14 blank"> </span>barras de<span class="_0 blank"> </span> aço <span class="_14 blank"> </span>apropriado, podendo <span class="_14 blank"> </span>ser proten<span class="_0 blank"> </span>didos ou </div><div class="t m2 x1 h4 ycd ff2 fs2 fc0 sc0 ls0 ws0">tracionados. </div><div class="t m2 x1b h4 yce ff2 fs2 fc0 sc0 ls0 ws0">As <span class="_8 blank"></span>es<span class="_0 blank"> </span>truturas <span class="_8 blank"></span>atirant<span class="_0 blank"> </span>adas <span class="_8 blank"></span>são <span class="_2 blank"></span>sistemas <span class="_8 blank"></span>f<span class="_0 blank"> </span>lexív<span class="_2 blank"></span>e<span class="_0 blank"> </span>is <span class="_8 blank"></span>com<span class="_0 blank"> </span>plexos, <span class="_2 blank"></span>com <span class="_8 blank"></span>forte <span class="_2 blank"></span>interação </div><div class="t m2 x1 h4 ycf ff2 fs2 fc0 sc0 ls0 ws0">entre <span class="_0 blank"> </span>os <span class="_0 blank"> </span>seus <span class="_0 blank"> </span>elementos <span class="_0 blank"> </span>e <span class="_1 blank"> </span>constituem-se <span class="_0 blank"> </span>como <span class="_0 blank"> </span>alternativa <span class="_0 blank"> </span>aos <span class="_0 blank"> </span>sistemas <span class="_0 blank"> </span>tradicionais, </div><div class="t m2 x1 h4 yd0 ff2 fs2 fc0 sc0 ls0 ws0">sempre <span class="_3 blank"> </span>que <span class="_f blank"> </span>se <span class="_1 blank"> </span>pr<span class="_0 blank"> </span>etende <span class="_3 blank"> </span>a <span class="_3 blank"> </span>real<span class="_0 blank"> </span>ização <span class="_3 blank"> </span>de <span class="_3 blank"> </span>grandes <span class="_3 blank"> </span>vãos<span class="_0 blank"> </span>. <span class="_3 blank"> </span>Numa <span class="_3 blank"> </span>ponte <span class="_3 blank"> </span>at<span class="_0 blank"> </span>irantada, <span class="_3 blank"> </span>po<span class="_0 blank"> </span>r </div><div class="t m2 x1 h4 yd1 ff2 fs2 fc0 sc0 ls0 ws0">exemplo, o tirante é <span class="_2 blank"></span>um elemento de comportamento singular, su<span class="_2 blank"></span>põe-se que a rigidez </div><div class="t m2 x1 h4 yd2 ff2 fs2 fc0 sc0 ls0 ws0">à <span class="_1a blank"> </span>flexão <span class="_5 blank"> </span>é <span class="_1a blank"> </span>nula. <span class="_1a blank"> </span>O <span class="_1a blank"> </span>aum<span class="_0 blank"> </span>ento <span class="_1a blank"> </span>dos<span class="_0 blank"> </span> <span class="_1a blank"> </span>vãos <span class="_1a blank"> </span>dessas <span class="_1a blank"> </span>pont<span class="_0 blank"> </span>es, <span class="_1a blank"> </span>implica <span class="_1a blank"> </span>o <span class="_5 blank"> </span>aumento <span class="_1a blank"> </span>do </div><div class="t m2 x1 h4 yd3 ff2 fs2 fc0 sc0 ls0 ws0">comprimento <span class="_d blank"> </span>dos <span class="_10 blank"> </span>tirantes, <span class="_10 blank"> </span>e <span class="_d blank"> </span>das <span class="_10 blank"> </span>correspondent<span class="_0 blank"> </span>es <span class="_f blank"> </span>pe<span class="_0 blank"> </span>rdas <span class="_10 blank"> </span>de <span class="_10 blank"> </span>rigidez <span class="_10 blank"> </span>resul<span class="_0 blank"> </span>tantes <span class="_d blank"> </span>do </div><div class="t m2 x1 h5 yd4 ff2 fs2 fc0 sc0 ls0 ws0">peso próprio, em e<span class="_0 blank"> </span>special nos tirantes mais longos.<span class="ff3"> </span></div><div class="t m2 x1b h4 yd5 ff2 fs2 fc0 sc0 ls0 ws0">Em um <span class="_18 blank"> </span>tirante de c<span class="_2 blank"></span>oncreto armado, se<span class="_2 blank"></span> a <span class="_18 blank"> </span>ten<span class="_0 blank"> </span>são d<span class="_2 blank"></span>e tração <span class="_18 blank"> </span>ap<span class="_0 blank"> </span>li<span class="_2 blank"></span>cad<span class="_0 blank"> </span>a pelo </div><div class="t m2 x1 h4 y89 ff2 fs2 fc0 sc0 ls0 ws0">carregamento ex<span class="_2 blank"></span>terno <span class="_2 blank"></span>é pequena <span class="_2 blank"></span>e <span class="_2 blank"></span>inferior <span class="_2 blank"></span>à resistência<span class="_2 blank"></span> do <span class="_2 blank"></span>concreto <span class="_2 blank"></span>à <span class="_2 blank"></span>tração (<span class="_2 blank"></span>f<span class="fs9 ws9 v4">ct</span>), não </div><div class="t m2 x1 h4 yd6 ff2 fs2 fc0 sc0 ls0 ws0">aparecem f<span class="_0 blank"> </span>issuras na superfície do tirante.<span class="_0 blank"> </span> Porém, se o c<span class="_0 blank"> </span>arregamento for aumentad<span class="_0 blank"> </span>o </div><div class="t m2 x1 h4 yd7 ff2 fs2 fc0 sc0 ls0 ws0">e <span class="_1 blank"> </span>a <span class="_3 blank"> </span>tensão <span class="_1 blank"> </span>de <span class="_1 blank"> </span>tr<span class="_0 blank"> </span>ação <span class="_1 blank"> </span>atuante <span class="_3 blank"> </span>igualar <span class="_1 blank"> </span>a <span class="_1 blank"> </span>re<span class="_0 blank"> </span>sistência <span class="_1 blank"> </span>do <span class="_1 blank"> </span>conc<span class="_0 blank"> </span>reto <span class="_1 blank"> </span>à <span class="_3 blank"> </span>tração, <span class="_1 blank"> </span>surge <span class="_1 blank"> </span>nes<span class="_0 blank"> </span>te </div><div class="t m2 x1 h4 yd8 ff2 fs2 fc0 sc0 ls0 ws0">instante a prim<span class="_2 blank"></span>eira fissura. Quando <span class="_2 blank"></span>o concreto fiss<span class="_2 blank"></span>ur<span class="_0 blank"> </span>a ele <span class="_2 blank"></span>passa a n<span class="_2 blank"></span>ão resistir mais <span class="_2 blank"></span>às </div><div class="t m2 x1 h4 yd9 ff2 fs2 fc0 sc0 ls0 ws0">tensões <span class="_c blank"> </span>de <span class="_c blank"> </span>tração, <span class="_c blank"> </span>vindo <span class="_c blank"> </span>daí <span class="_c blank"> </span>a <span class="_c blank"> </span>necessidade <span class="_c blank"> </span>de <span class="_c blank"> </span>uma <span class="_c blank"> </span>armadura <span class="_c blank"> </span>resistente. <span class="_c blank"> </span>Com <span class="_c blank"> </span>o </div><div class="t m2 x1 h4 yda ff2 fs2 fc0 sc0 ls0 ws0">aumento <span class="_f blank"> </span>do <span class="_f blank"> </span>carre<span class="_2 blank"></span>gamento <span class="_f blank"> </span>e <span class="_f blank"> </span>das <span class="_3 blank"> </span>tensões <span class="_f blank"> </span>de <span class="_3 blank"> </span>tração, <span class="_f blank"> </span>novas <span class="_3 blank"> </span>f<span class="_0 blank"> </span>issuras <span class="_f blank"> </span>vão <span class="_3 blank"> </span>surgindo, <span class="_f blank"> </span>e </div><div class="t m2 x1 h4 ydb ff2 fs2 fc0 sc0 ls0 ws0">aquelas existentes vão aumentando a abe<span class="_0 blank"> </span>rtura. (BASTOS, 2006) </div><div class="t m2 x1 h4 ydc ff2 fs2 fc0 sc0 ls0 ws0">1.5 ESTUDO DE CASO </div><div class="t m2 x1 ha ydd ff7 fs2 fc0 sc0 ls0 ws0">1.5.1 APRESENTAÇÃO DO CASO </div><div class="t m2 x1 h4 yde ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>Este <span class="_3 blank"> </span>caso <span class="_3 blank"> </span>apresenta-se <span class="_1 blank"> </span>por <span class="_3 blank"> </span>ser <span class="_3 blank"> </span>uma <span class="_3 blank"> </span>residência <span class="_1 blank"> </span>un<span class="_0 blank"> </span>ifamiliar <span class="_3 blank"> </span>composta <span class="_1 blank"> </span>por<span class="_0 blank"> </span> <span class="_1 blank"> </span>dois </div><div class="t m2 x1 h4 ydf ff2 fs2 fc0 sc0 ls0 ws0">pavimentos, localizada no estado<span class="_0 blank"> </span> do Rio Grande do Norte. </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pf9" class="pf w0 h0" data-page-no="9"><div class="pc pc9 w0 h0"><img fetchpriority="low" loading="lazy" class="bi x1f ye0 w3 hf" alt="" src="https://files.passeidireto.com/14d199ed-aedb-4369-937d-17a9440360b8/bg9.png"><div class="t m2 x13 h4 y1f ff2 fs2 fc0 sc0 ls0 ws0">8 </div><div class="t m2 x1 h4 y20 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y41 ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>O <span class="_1 blank"> </span>motivo <span class="_1 blank"> </span>cruc<span class="_0 blank"> </span>ial <span class="_0 blank"> </span>pa<span class="_0 blank"> </span>ra <span class="_0 blank"> </span>a <span class="_3 blank"> </span>utilização <span class="_1 blank"> </span>da <span class="_1 blank"> </span>estrutura <span class="_3 blank"> </span>de <span class="_1 blank"> </span>tirante <span class="_1 blank"> </span>foi <span class="_1 blank"> </span>a <span class="_1 blank"> </span>necessidade <span class="_3 blank"> </span>de </div><div class="t m2 x1 h4 y42 ff2 fs2 fc0 sc0 ls0 ws0">encontrar <span class="_1c blank"> </span>uma <span class="_1c blank"> </span>estrutura <span class="_1c blank"> </span>que <span class="_12 blank"> </span>correspondesse <span class="_1c blank"> </span>com <span class="_1c blank"> </span>a <span class="_1c blank"> </span>arquitetura. <span class="_12 blank"> </span>O <span class="_1c blank"> </span>projeto<span class="_0 blank"> </span> </div><div class="t m2 x1 h4 y78 ff2 fs2 fc0 sc0 ls0 ws0">arquitetônico exig<span class="_2 blank"></span>ia uma vig<span class="_2 blank"></span>a em balanço <span class="_2 blank"></span>com quase <span class="_2 blank"></span>3,5 metros <span class="_2 blank"></span>de <span class="_2 blank"></span>vão para <span class="_2 blank"></span>suportar </div><div class="t m2 x1 h4 ye1 ff2 fs2 fc0 sc0 ls0 ws0">um painel que seria colocado po<span class="_0 blank"> </span>steriormente, e não poderia ser colocado um pilar na </div><div class="t m2 x1 h4 ye2 ff2 fs2 fc0 sc0 ls0 ws0">extremidade <span class="_c blank"> </span>para <span class="_d blank"> </span>equilibrar <span class="_c blank"> </span>as <span class="_d blank"> </span>cargas, <span class="_c blank"> </span>pois <span class="_d blank"> </span>i<span class="_0 blank"> </span>nterferiria <span class="_d blank"> </span>na <span class="_c blank"> </span>passagem <span class="_c blank"> </span>e <span class="_d blank"> </span>no <span class="_c blank"> </span>detalhe </div><div class="t m2 x1 h4 ye3 ff2 fs2 fc0 sc0 ls0 ws0">arquitetônico <span class="_e blank"> </span>da <span class="_e blank"> </span>casa. <span class="_e blank"> </span>Com <span class="_e blank"> </span>isso, <span class="_e blank"> </span>em <span class="_e blank"> </span>consenso <span class="_e blank"> </span>com <span class="_e blank"> </span>o <span class="_e blank"> </span>arquiteto<span class="_0 blank"> </span>, <span class="_c blank"> </span>foi <span class="_e blank"> </span>pensado <span class="_e blank"> </span>em </div><div class="t m2 x1 h4 ye4 ff2 fs2 fc0 sc0 ls0 ws0">colocar <span class="_2 blank"></span>um <span class="_8 blank"></span>tirante <span class="_2 blank"></span>na <span class="_8 blank"></span>extremidad<span class="_0 blank"> </span>e <span class="_8 blank"></span>dessa <span class="_2 blank"></span>vig<span class="_2 blank"></span>a,<span class="_0 blank"> </span> <span class="_8 blank"></span>po<span class="_0 blank"> </span>is <span class="_8 blank"></span>a <span class="_2 blank"></span>laje <span class="_8 blank"></span>da <span class="_2 blank"></span>coberta <span class="_8 blank"></span>tem<span class="_0 blank"> </span> <span class="_8 blank"></span>uma <span class="_8 blank"></span>pr<span class="_0 blank"> </span>ojeção </div><div class="t m2 x1 h4 ye5 ff2 fs2 fc0 sc0 ls0 ws0">superior no limite desta viga. Onde esse <span class="_0 blank"> </span>tirante daria suporte a essa viga em balanço </div><div class="t m2 x1 h4 ye6 ff2 fs2 fc0 sc0 ls0 ws0">através <span class="_1 blank"> </span>da<span class="_0 blank"> </span>s <span class="_1 blank"> </span>dua<span class="_0 blank"> </span>s <span class="_1 blank"> </span>vigas <span class="_1 blank"> </span>que <span class="_1 blank"> </span>f<span class="_0 blank"> </span>icam <span class="_1 blank"> </span>na <span class="_3 blank"> </span>cobertura, <span class="_3 blank"> </span>que <span class="_1 blank"> </span>para <span class="_3 blank"> </span>o <span class="_1 blank"> </span>caso <span class="_1 blank"> </span>f<span class="_0 blank"> </span>oram <span class="_3 blank"> </span>protendidas. </div><div class="t m2 x1 h4 ye7 ff2 fs2 fc0 sc0 ls0 ws0">Abaixo <span class="_2 blank"></span>está <span class="_8 blank"></span>representado <span class="_2 blank"></span>o <span class="_8 blank"></span>caso, <span class="_2 blank"></span>em <span class="_8 blank"></span>que <span class="_2 blank"></span>a <span class="_8 blank"></span>esquerda <span class="_2 blank"></span>representa <span class="_8 blank"></span>um <span class="_2 blank"></span>detalhe <span class="_8 blank"></span>da<span class="_0 blank"> </span> <span class="_8 blank"></span>planta </div><div class="t m2 x1 h4 ye8 ff2 fs2 fc0 sc0 ls0 ws0">baixa <span class="_f blank"> </span>da<span class="_0 blank"> </span> <span class="_10 blank"> </span>cobertura, <span class="_10 blank"> </span>onde <span class="_10 blank"> </span>o <span class="_10 blank"> </span>tirante <span class="_10 blank"> </span>foi <span class="_10 blank"> </span>engastado; <span class="_10 blank"> </span>e <span class="_10 blank"> </span>a <span class="_10 blank"> </span>direita <span class="_f blank"> </span>es<span class="_0 blank"> </span>tá <span class="_10 blank"> </span>representado <span class="_10 blank"> </span>um </div><div class="t m2 x1 h4 ye9 ff2 fs2 fc0 sc0 ls0 ws0">detalhe do corte em que mostra a <span class="_0 blank"> </span>problemática para utilização do tirante. </div><div class="t m2 x14 h5 yea ff3 fs2 fc0 sc0 ls0 ws0">FIGURA 2 \u2013<span class="ff2"> Detalhe da P<span class="_0 blank"> </span>lanta Baixa e Corte do projeto arquitetônico </span></div><div class="t m2 x20 h4 yeb ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x21 h5 yec ff3 fs2 fc0 sc0 ls0 ws0">FONTE \u2013<span class="ff2"> Proj<span class="_0 blank"> </span>eto Arquitetônico Ricardo Messias Barros </span></div><div class="t m2 x1 ha yed ff7 fs2 fc0 sc0 ls0 ws0">1.5.2 CONSIDER<span class="_0 blank"> </span>AÇÃO DO PROJETO ESTRUTURAL </div><div class="t m2 x1 h4 yee ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>Um fator crucial para consideração e concepção <span class="_2 blank"></span>de<span class="_0 blank"> </span>ste projeto <span class="_2 blank"></span>f<span class="_0 blank"> </span>oi o controle da </div><div class="t m2 x1 h4 yef ff2 fs2 fc0 sc0 ls0 ws0">fissuração, <span class="_c blank"> </span>onde <span class="_d blank"> </span>segundo <span class="_c blank"> </span>Silva <span class="_d blank"> </span>(2003),<span class="_0 blank"> </span> <span class="_d blank"> </span>a <span class="_c blank"> </span>fissuração <span class="_d blank"> </span>nos<span class="_0 blank"> </span> <span class="_c blank"> </span>el<span class="_2 blank"></span>em<span class="_0 blank"> </span>entos <span class="_c blank"> </span>estruturais <span class="_d blank"> </span>de </div><div class="t m2 x1 h4 yf0 ff2 fs2 fc0 sc0 ls0 ws0">concreto <span class="_d blank"> </span>armado <span class="_d blank"> </span>é <span class="_d blank"> </span>causada <span class="_10 blank"> </span>pe<span class="_0 blank"> </span>la <span class="_10 blank"> </span>baixa <span class="_d blank"> </span>resistência <span class="_d blank"> </span>à <span class="_d blank"> </span>tração <span class="_d blank"> </span>do <span class="_d blank"> </span>concreto. <span class="_10 blank"> </span>A<span class="_0 blank"> </span>ssim, <span class="_10 blank"> </span>a </div><div class="t m2 x1 h4 yf1 ff2 fs2 fc0 sc0 ls0 ws0">abertura <span class="_0 blank"> </span>m<span class="_0 blank"> </span>áxima <span class="_0 blank"> </span>das <span class="_1 blank"> </span>fissuras, <span class="_1 blank"> </span>sem <span class="_1 blank"> </span>prejudicar <span class="_0 blank"> </span>a <span class="_1 blank"> </span>estética <span class="_1 blank"> </span>ou <span class="_1 blank"> </span>causar <span class="_0 blank"> </span>preoc<span class="_0 blank"> </span>upação <span class="_0 blank"> </span>nos </div><div class="t m2 x1 h4 yf2 ff2 fs2 fc0 sc0 ls0 ws0">usuários <span class="_18 blank"> </span>dep<span class="_2 blank"></span>en<span class="_0 blank"> </span>de <span class="_e blank"> </span>da <span class="_e blank"> </span>pos<span class="_0 blank"> </span>ição, <span class="_e blank"> </span>pr<span class="_0 blank"> </span>ofundidade, <span class="_e blank"> </span>finalidade <span class="_18 blank"> </span>da <span class="_e blank"> </span>estrutura, <span class="_18 blank"> </span>distância <span class="_e blank"> </span>do </div><div class="t m2 x1 h4 yf3 ff2 fs2 fc0 sc0 ls0 ws0">observador, etc. </div><div class="t m2 x1 h4 yf4 ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>Para <span class="_f blank"> </span>a <span class="_3 blank"> </span>estrutura <span class="_3 blank"> </span>de <span class="_f blank"> </span>tirante <span class="_3 blank"> </span>é <span class="_f blank"> </span>crucial <span class="_3 blank"> </span>analisar <span class="_f blank"> </span>esse <span class="_3 blank"> </span>par<span class="_0 blank"> </span>âmetro, <span class="_3 blank"> </span>pois <span class="_f blank"> </span>não <span class="_f blank"> </span>ex<span class="_2 blank"></span>iste </div><div class="t m2 x1 h4 yf5 ff2 fs2 fc0 sc0 ls0 ws0">compressão <span class="_3 blank"> </span>e <span class="_3 blank"> </span>f<span class="_0 blank"> </span>lexão <span class="_1 blank"> </span>para <span class="_3 blank"> </span>o <span class="_f blank"> </span>concreto <span class="_1 blank"> </span>poder <span class="_3 blank"> </span>ser <span class="_f blank"> </span>utiliz<span class="_2 blank"></span>ado<span class="_0 blank"> </span>, <span class="_3 blank"> </span>ficando <span class="_3 blank"> </span>restrito <span class="_3 blank"> </span>somente <span class="_3 blank"> </span>a </div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div> <div id="pfa" class="pf w0 h0" data-page-no="a"><div class="pc pca w0 h0"><img fetchpriority="low" loading="lazy" class="bi x22 yf6 w4 h10" alt="" src="https://files.passeidireto.com/14d199ed-aedb-4369-937d-17a9440360b8/bga.png"><div class="t m2 x13 h4 y1f ff2 fs2 fc0 sc0 ls0 ws0">9 </div><div class="t m2 x1 h4 y20 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x1 h4 y41 ff2 fs2 fc0 sc0 ls0 ws0">função de <span class="_2 blank"></span>proteger<span class="_0 blank"> </span> e <span class="_2 blank"></span>cobrir <span class="_2 blank"></span>(cobrimen<span class="_0 blank"> </span>to) da <span class="_2 blank"></span>armadura, q<span class="_2 blank"></span>ue<span class="_0 blank"> </span> para <span class="_2 blank"></span>este tipo d<span class="_2 blank"></span>e estrutura </div><div class="t m2 x1 h4 y42 ff2 fs2 fc0 sc0 ls0 ws0">trabalha ao <span class="_2 blank"></span>máximo. Com is<span class="_2 blank"></span>so, a <span class="_2 blank"></span>estrutura <span class="_2 blank"></span>f<span class="_0 blank"> </span>oi <span class="_2 blank"></span>cal<span class="_0 blank"> </span>culada <span class="_2 blank"></span>para se <span class="_2 blank"></span>comportar no <span class="_2 blank"></span>Estádio </div><div class="t m2 x1 h4 y78 ff2 fs2 fc0 sc0 ls0 ws0">1 <span class="_3 blank"> </span>e <span class="_f blank"> </span>deformar <span class="_3 blank"> </span>no<span class="_0 blank"> </span> <span class="_f blank"> </span>Do<span class="_2 blank"></span>mínio <span class="_f blank"> </span>1, <span class="_f blank"> </span>onde <span class="_3 blank"> </span>considera-se <span class="_3 blank"> </span>a <span class="_f blank"> </span>tensão <span class="_f blank"> </span>gerada <span class="_1 blank"> </span>pel<span class="_0 blank"> </span>o <span class="_3 blank"> </span>car<span class="_0 blank"> </span>regamento </div><div class="t m2 x1 h4 ye1 ff2 fs2 fc0 sc0 ls0 ws0">externo menor do<span class="_0 blank"> </span> que a resistênc<span class="_0 blank"> </span>ia de tração do con<span class="_0 blank"> </span>creto (fct) para que não<span class="_0 blank"> </span> ocorra a </div><div class="t m2 x1 h4 ye2 ff2 fs2 fc0 sc0 ls0 ws0">primeira fissura. </div><div class="t m2 x1 h4 yf7 ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>Vale <span class="_14 blank"> </span>ressaltar <span class="_1a blank"> </span>t<span class="_2 blank"></span>ambém <span class="_1a blank"> </span>que <span class="_14 blank"> </span>deve <span class="_14 blank"> </span>estar <span class="_14 blank"> </span>ex<span class="_2 blank"></span>pl<span class="_0 blank"> </span>ícito <span class="_14 blank"> </span>no<span class="_0 blank"> </span> <span class="_14 blank"> </span>projeto <span class="_1d blank"> </span>o <span class="_14 blank"> </span>detalhe <span class="_14 blank"> </span>do </div><div class="t m2 x1 h4 yf8 ff2 fs2 fc0 sc0 ls0 ws0">escoramento <span class="_1 blank"> </span>da <span class="_3 blank"> </span>viga <span class="_1 blank"> </span>que <span class="_1 blank"> </span>será <span class="_3 blank"> </span>suspensa <span class="_1 blank"> </span>pelo <span class="_3 blank"> </span>tirante. <span class="_1 blank"> </span>Assim <span class="_3 blank"> </span>o <span class="_1 blank"> </span>escoramento <span class="_1 blank"> </span>só <span class="_3 blank"> </span>deve </div><div class="t m2 x1 h4 yf9 ff2 fs2 fc0 sc0 ls0 ws0">ser <span class="_d blank"> </span>retirado <span class="_c blank"> </span>quando <span class="_d blank"> </span>o <span class="_d blank"> </span>tirant<span class="_0 blank"> </span>e <span class="_d blank"> </span>e <span class="_c blank"> </span>a <span class="_10 blank"> </span>estr<span class="_0 blank"> </span>utura <span class="_10 blank"> </span>ac<span class="_0 blank"> </span>ima <span class="_c blank"> </span>atingir <span class="_10 blank"> </span>a <span class="_c blank"> </span>resistência <span class="_d blank"> </span>prevista <span class="_d blank"> </span>em </div><div class="t m2 x1 h4 yfa ff2 fs2 fc0 sc0 ls0 ws0">projeto <span class="_10 blank"> </span>e <span class="_10 blank"> </span>qua<span class="_0 blank"> </span>ndo <span class="_10 blank"> </span>for <span class="_10 blank"> </span>desfei<span class="_0 blank"> </span>to, <span class="_10 blank"> </span>deve <span class="_10 blank"> </span>ser <span class="_d blank"> </span>no <span class="_f blank"> </span>sen<span class="_0 blank"> </span>tido <span class="_10 blank"> </span>do <span class="_d blank"> </span>centro <span class="_d blank"> </span>do <span class="_f blank"> </span>vão <span class="_d blank"> </span>para <span class="_10 blank"> </span>as <span class="_d blank"> </span>duas </div><div class="t m2 x1 h4 yfb ff2 fs2 fc0 sc0 ls0 ws0">extremidades da<span class="_0 blank"> </span>s <span class="_0 blank"> </span>vigas, por <span class="_1 blank"> </span>tratar-se de <span class="_0 blank"> </span>uma <span class="_0 blank"> </span>viga bi-apoi<span class="_0 blank"> </span>ada <span class="_0 blank"> </span>pelo tirant<span class="_0 blank"> </span>e <span class="_0 blank"> </span>e pel<span class="_0 blank"> </span>o pilar </div><div class="t m2 x1 h4 yfc ff2 fs2 fc0 sc0 ls0 ws0">da casa. </div><div class="t m2 x1 ha yfd ff7 fs2 fc0 sc0 ls0 ws0">1.5.3 CUIDADOS NO SOFTWARE </div><div class="t m2 x1 h4 yfe ff2 fs2 fc0 sc0 ls0 ws0"> <span class="_15 blank"> </span>Este <span class="_8 blank"></span>projeto <span class="_8 blank"></span>foi <span class="_2 blank"></span>modelado <span class="_7 blank"></span>e <span class="_2 blank"></span>analisado <span class="_8 blank"></span>no <span class="_8 blank"></span>software <span class="_8 blank"></span>TQS<span class="_0 blank"> </span>, <span class="_8 blank"></span>onde <span class="_8 blank"></span>apresenta <span class="_8 blank"></span>opções </div><div class="t m2 x1 h4 yff ff2 fs2 fc0 sc0 ls0 ws0">para c<span class="_2 blank"></span>aracter<span class="_0 blank"> </span>izar <span class="_2 blank"></span>um <span class="_2 blank"></span>elemento <span class="_2 blank"></span>es<span class="_0 blank"> </span>trutural <span class="_2 blank"></span>no <span class="_8 blank"></span>f<span class="_0 blank"> </span>ormato d<span class="_2 blank"></span>e tirante. <span class="_2 blank"></span>Para <span class="_2 blank"></span>isso <span class="_2 blank"></span>é <span class="_2 blank"></span>necessário </div><div class="t m2 x1 h4 y100 ff2 fs2 fc0 sc0 ls0 ws0">controlar <span class="_e blank"> </span>os <span class="_e blank"> </span>valores <span class="_e blank"> </span>de <span class="_c blank"> </span>f<span class="_0 blank"> </span>issuração <span class="_e blank"> </span>máxima <span class="_c blank"> </span>e <span class="_18 blank"> </span>classi<span class="_2 blank"></span>f<span class="_0 blank"> </span>icar <span class="_e blank"> </span>o <span class="_e blank"> </span>elemento <span class="_e blank"> </span>como <span class="_c blank"> </span>t<span class="_0 blank"> </span>irante. </div><div class="t m2 x1 h4 y101 ff2 fs2 fc0 sc0 ls0 ws0">Contudo <span class="_1 blank"> </span>o <span class="_1 blank"> </span>detalhamento <span class="_3 blank"> </span>gerado <span class="_1 blank"> </span>pelo <span class="_1 blank"> </span>software <span class="_3 blank"> </span>não <span class="_1 blank"> </span>é <span class="_1 blank"> </span>o <span class="_3 blank"> </span>ideal <span class="_0 blank"> </span>e <span class="_3 blank"> </span>não <span class="_0 blank"> </span>ac<span class="_0 blank"> </span>eito <span class="_1 blank"> </span>por <span class="_1 blank"> </span>norma </div><div class="t m2 x1 h4 y102 ff2 fs2 fc0 sc0 ls0 ws0">também (Figura 3). </div><div class="t m2 x23 h5 y103 ff3 fs2 fc0 sc0 ls0 ws0">FIGURA 3 \u2013<span class="ff2"> Detalhe parcial do<span class="_0 blank"> </span> Tirante gerado pelo TQS </span></div><div class="t m2 x24 h4 y104 ff2 fs2 fc0 sc0 ls0 ws0"> </div><div class="t m2 x25 h5 y105 ff3 fs2 fc0 sc0 ls0 ws0">FONTE \u2013<span class="ff2"> Acervo Pessoal </span></div></div><div class="pi" data-data='{"ctm":[1.000000,0.000000,0.000000,1.000000,0.000000,0.000000]}'></div></div>
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