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

April 22, 2026

RISA-3D to RISAConnection: Making the Link Work

RISAConnection is designed to work directly with your RISAFloor and RISA-3D models, not as a separate “export‑and‑forget” tool. When the integration is set up correctly, RISAConnection can read your geometry, member sizes, connection rules, design method, and load combinations, then send connection results back into RISAFloor and RISA-3D for review. This article walks through how the integration behaves, what you can and cannot change in RISAConnection, and how to work with grouped connections efficiently. 1. What Actually Comes into RISAConnection When you integrate from RISAFloor or RISA-3D, RISAConnection creates a .rcn file with the same file name as your model in the same folder. You’ll see that the project is populated with all valid connections—only connection types that RISAConnection can design will be brought in. Data that is integrated: Geometry and member sizes Connection Rules from RISAFloor / RISA-3D (including bolted vs. welded settings) Design Method (ASD or LRFD) Applicable Seismic Design Rules from RISA-3D (for seismic connection types) Load combinations that have the “Connection” check‑box enabled in the RISAFloor / RISA-3D Load Combinations spreadsheet If a connection type or configuration is not supported by RISAConnection, it will not be added to the .rcn project and a warning will be…

Read More

December 30, 2013

How Do I Model a Tapered Pipe?

Tapered members are common for metal buildings and pole-type structures....

Read More
December 27, 2013

What are Web Doubler plates used for in RISAConnection?

For moment connections in RISAConnection there is an option to place web...

Read More
November 20, 2013

Why Is My Beam Failing in Shear?

When solving a RISA-3D model you may find you have a Shear UC (unity...

Read More
October 09, 2013

What is the Tau b Factor and how does it affect my analysis?

When solving a RISA-3D model with hot rolled steel members under the AISC...

Read More
September 06, 2013

Why Are The Steel Beam Deflections So Large?

When solving a RISA-3D model with hot rolled steel members under the AISC...

Read More
August 21, 2013

How can I transition a Plate Mesh from Round to Rectangular?

Transitioning plates from a circular (or elliptical) to a square (or...

Read More
August 14, 2013

How to Use International Shapes in RISAConnection

You can use the full library of international shapes inside of...

Read More
July 31, 2013

How to View Wood Design Values

We have recently added a new View Design Properties dialog to allow you to...

Read More
July 02, 2013

How to use Live Load Special

In RISAFloor, there are several different Load Categories that define Live...

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...