Workflow de Quantificação no Navisworks

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Navisworks Quantification Workflow 
 
…and how does this fit with programming 
 
Programming steps 
 
1. Determine the work activities = WBS 
2. Determine activities duration = quantities x labour constant 
3. Determine activities relationships 
4. Review and analyse the programme 
5. Cost/resource allocation 
6. Resource levelling 
7. Implement the programme 
8. Monitor and control the programme 
9. Revise the database and record feedback 
 
And later after we have worked on the programme itself with MS Project, we will get back to Navisworks to analyse 
the programme using Timeliner and simulation functions. 
 
 
 
In addition to these instructions attend the workshop(s) and use Quantification User Guide in Navisworks Help, 
http://help.autodesk.com/view/NAV/2015/ENU/ when needed. 
 
1. In Navisworks Manage (2015), open your project file 
 
2. On View tab/Windows choose Selection Tree, Item Catalogue and Quantification Workbook 
 
3. Set up a project on Quantification Workbook 
- Click Project Setup 
- For Catalogue choose None 
- Don’t change the default Measurement units (metric) 
- Finish 
Please note that if you have already worked with the model and saved it, your project setup has already 
been done and you will not see the ‘Project setup’ box. 
 
4. Select takeoff items 
- Use the WBS you have created for the project to create the Item Catalogue 
- Start from the highest level of the WBS hierarchy and create New Groups according to the WBS 
hierarchy 
- Your Tasks are your Items i.e. the lowest level in Navisworks WBS hierarchy and the ones where you 
attach the quantities from the model. 
See the example on next page of an unfinished WBS following Rawlinsons elemental breakdown. In this one 
the Pre-cast concrete panels (floor by floor or as you have defined in your methodology) are at the 
Item/Task level. 
 
http://help.autodesk.com/view/NAV/2015/ENU/
 
 
5. Selecting model items: 
- You can select model items either using the Selection tree or straight from the model by clicking 
them. 
- If you cannot see the Selection tree go to View Window and see that you have ticked it. It should 
appear on the left upper side of your screen. 
- Keeping Ctrl down when selecting items you can select multiple items. See what the difference is, if 
you keep Shift down instead. 
- Use Select Same, Hide/Unhide functions under the Home tab creatively to help you to visualise all 
the items that you need to select/you have selected. You need to be careful to capture all the items, 
but nothing more than once. 
- If you are unable to select items (the software comes up with an error message) you might need to 
change the Selection resolution under Select & Search. 
 
6. Quantity takeoff: 
- When you have selected the items on the model, you need to choose the correct Item in your 
Quantification Workbook where you want to attach the quantities of those items. 
- Either Right click your mouse and choose Takeoff selected items or click Model Takeoff in the 
Quantification Workbook and Takeoff selected 
- The Objects and their quantities should appear on the right side of the Quantification Workbook 
 
7. Double-checking and modifying the quantities: 
- You cannot trust the computer to do all the job for you, you always need to check the outcome. 
- If the software does not calculate areas or volumes correctly, in your Item catalog you can modify 
these formulas. 
- See that the Quantification workbook has all the needed dimensions to calculate the quantity for the 
item. If a needed dimension is missing, you can measure the needed dimension from the model by 
using an appropriate Measure-tool under the Review-tab and add the dimension manually into the 
Quantification workbook. Alternative is to finalise the calculations in Excel. 
 
8. Output takeoff data to Excel XLSX format. See the figure below. 
 
 
 
 
Export/Import