Risa Tips & Tricks: How to Use Our Structural Analysis Software

November 3, 2026

Technical Support Team: Frequently Asked Questions

RISA technical support provides engineering focused help for users of RISA structural design software. Users with an active license can contact the team by email at support@risa.com or by phone at 800-332-RISA. Find answers to common questions about contacting RISA technical support, submitting a support request, and accessing additional learning resources below. What is RISA technical support? RISA technical support connects you with knowledgeable support professionals who can help you use RISA structural design software effectively. The team can help you find answers, troubleshoot issues, and model with confidence. How can I contact RISA technical support? The best way to contact RISA technical support is by email at support@risa.com. Email makes it easy to share model files, screenshots, error messages, outputs, and other project information. This gives the support team the context needed to review the specific model conditions, investigate the question efficiently, and provide a more accurate answer. You can also call RISA technical support at 800-332-RISA. Phone support is helpful for quick, general questions that do not require the team to review a model or specific design condition. Who can use RISA technical support? RISA technical support is available to users with an active RISA license including subscription,…

Read More

Instability

March 11, 2025

ADAPT-Builder: Fixing Instability Warnings Due to Multiple Slabs

When working with ADAPT-Builder, in some models users may encounter an...

Read More
November 13, 2019

Solving P-Delta Diverging at a Node in RISA-3D

In this video, you’ll learn how to investigate errors in your RISA-3D...

Read More
October 19, 2016

Instabilities in RISA-3D with Flexible Diaphragms

In a model that contains both RISAFloor and RISA-3D data it is possible to...

Read More
February 23, 2012

How to Resolve a P-Delta Instability

What Causes P-Delta Instability in Engineering? Investigating P-Delta...

Read More
June 13, 2011

How Do I Avoid Instability Warnings in a RISA-3D Model?

Have you ever received an instability warning when running a three...

Read More
May 10, 2011

Are You Receiving Instability Warnings for Your Truss Model in…

When running a truss model in RISA-3D or RISA-2D, it’s quite common to...

Read More
March 09, 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...

Read More
January 18, 2011

How to Model Tension-Only Bracing in RISA-3D

Before reading this, be sure to check out the article linked below on...

Read More
January 06, 2011

How to Model X-Bracing in RISA-3D

There are several tips to modeling X-Bracing within RISA-3D that can help...

Read More

Subscribe to Our Newsletter

Our monthly "Structural Moment" newsletter is the best way to keep up with RISA’s product updates, new releases, new features, training events, webinars and more...