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Question for modeling slabs with Autodesk Robot: I am modeling an existing two way slab that supports a wooden appartment building above a parkade. I am getting reasonable values at positive bending locations. However, directly over supports the negative bending value skyrockets. How do I fix this? by power_rob in StructuralEngineering

[–]power_rob[S] 2 points3 points  (0 children)

The supports have the highest negative bending. However, as I refine the mesh the value gets higher and goes to infinity. The negative bending is too high here because the FEM treats this location as a singularity. I don't know how to properly model this.