March 9, 2011

How Do I Investigate My RISA-3D Model Using the Deflected Shape?

When your RISA-3D model is not behaving as you anticipated, one of the best tools you have is viewing the deflected shape. Displaying the deflection graphically will help you visualize how the model is behaving and will often times bring to light modeling errors.

Turn on the deflected shape by clicking on the Result View Settings button on the Home tab.

Result View Settings

Or by clicking on the Deflection button found on the View Toolbar.

Deflection Toolbar

After the deflected shape is enabled, it is possible to increase the magnification factor of the deflection so that individual locations can be evaluated in more detail.

Deflection Tab

The deflected shapes pictured below illustrate two simple braced frames. These two images are a perfect example of how you can get seemingly good results including reactions, code checks and even Joint Deflections for both frames.


However, the right frame above shows that the beam is not connected to the column or brace. You need to display the deflected shape in order to catch this modeling error.

Tags: RISA-3D RISA-2D Instability

You may also be interested in

Nov 8, 2018 | Tips & Tricks
Mat Slab Overturning and Sliding Safety Factors

RISAFoundation v11.0 includes two new tabs in the Safety Factors resul...
Read More

Aug 21, 2019 | Tips & Tricks
RISA-3D v18 Sneak Peek Videos

The new release of RISA-3D is right around the corner! Check out our t...
Read More

Jul 12, 2019 | Tips & Tricks
Implementing Realistic Behavior for T/C Members in RISA-3D

Tension or Compression (T/C) Only members are commonly used in steel b...
Read More

Jun 20, 2019 | Tips & Tricks
Understanding Wall Panel Forces with Rigid Diaphragms

Rigid diaphragms represent a plane of very high rigidity and distribut...
Read More