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There are many different types deflection values calculated by RISA-3D. This article gives a deeper dive into each.
RISA-3D v16.0.4 introduces an enhancement that allows for more control over the beam deflection ratio through Deflection Ratio Options.
RISAFloor ES now has the ability to check long term deflection with creep and shrinkage.
This article takes a look at how RISA-3D calculates member deflection ratios.
The deflected shape is really helpful to understanding your model’s behavior. You can view the deflected shape of your model in RISAFloor. Just change the view to the Isometric view and click on the
When solving a RISA-3D model with hot rolled steel members using AISC 360 code, some member deflections are 20% larger than expected due to a stiffness reduction applied to certain members.
Below is a model of a flat concrete slab made of plates. In order to ensure adequate serviceability of the slab, you may need to check the deflection of the slab between columns.
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