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____________________________________________________________________________________________________ _______________________________________________________________________________________________ __________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ____________________________________________________________________________________________________ ___________________________________________________________________________________________________ __________________________________________________________________________________________________ ____________________________________________________________________________________________________ ___________________________________________________________________________________________________ _________________________________________________________________________________________________ __________________________________________________________________________________________________ _______________________________________________________________________________________________ _________________________________________________________________________________________________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ ____________________________________________________________________________________________________ _________________________________________________________________________________________________ ___________________________________________________________________________________________________ __________________________________________________________________________________________________ -Determine a força normal, o esforço cortante e o momento fletor que atuam no ponto E da estrutura carregada: Para obter R, precisamos analisar o equilíbrio do pino em C: 2ª etapa – Diagrama de corpo livre: constrói-se o DCL do segmento CE: 3ª etapa – Equações de equilíbrio: Determine a força normal, o esforço cortante e o momento fletor que atuam no ponto B da estrutura de dois membros, como mostrado na imagem: ª etapa – Reações de apoio: um DCL de cada membro é mostrado na figura: 2ª etapa – Diagramas de corpo livre: passando um corte imaginário perpendicular ao eixo do membro AC através do ponto B, geram-se os DCL dos segmentos AB e BC. HIBBELER (2011) Ao construir esses diagramas, é importante manter a carga distribuída onde ela se encontra até depois que o corte for feito. Somente depois ela poderá ser substituída por uma única força resultante. 3ª etapa – Equações de equilíbrio: aplicando as equações de equilíbrio ao segmento AB, temos: __________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ _________________________________________________________________________________________________ ____________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ __________________________________________________________________________________________________ ___________________________________________________________________________________________________ ____________________________________________________________________________________________________ ___________________________________________________________________________________________________ __________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ ___________________________________________________________________________________________________ ____________________________________________________________________________________________________ ____________________________________________________________________________________________________ __________________________________________________________________________________________________ __________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ____________________________________________________________________________________________________ ___________________________________________________________________________________________________ ____________________________________________________________________________________________________ ________________________________________________________________________________________________ ___________________________________________________________________________________________________ ___________________________________________________________________________________________________ ____________________________________________________________________________________________________ __________________________________________________________________________________________________
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