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

September 16, 2026

Modeling with Confidence: Understanding Nodes in RISA-3D

Nodes may be small, but they have an outsized impact on your RISA-3D model. They control how loads are transferred through your model. Missing or misplaced nodes can change analysis results if you don’t understand how they influence element behavior. Here are some of the most common ways nodes can affect your design behind the scenes. 1. Plate Loading & Framing How it works: Plates only transfer load and stiffness through their corner nodes. Key considerations: Apply loading as plate surface loads or as nodal loads at the corners Framing elements, such as beams or adjacent plates, must connect at corner nodes to transfer load correctly Check out the articles below to learn more about plates interacting with other elements Tip: Use the Auto Submesh Plates tool to mesh the plate into smaller sections and make sure there is a corner node at crossing members. This tool can be used after the plate is already drawn or automatically while drawing in the plate. Use “Submesh Plates” tool under the “Modify” tab to automatically submesh plates after they are drawn. Use “Automesh of Plates” tool under the “Home” tab to automatically submesh plates as they are drawn. 2. Crossing Member Interaction…

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RISA-3D (22)

March 18, 2016

How Do I Find A Failing Member in the Model?

You may find that when looking at the Code Check spreadsheet that a given...

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March 10, 2016

Importing Recorded Seismic Ground Motions

The Pacific Earthquake Engineering Research center (PEER) has a large...

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February 24, 2016

What are the Ramp Up/Coast Down Functions in Time History?

Ramp Up Function RISA allows you to define “Ramp Up Functions” to control...

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January 20, 2016

Why Did My Reinforcing Change in ACI 318-14?

The new ACI 318-14 code has been implemented into RISA-3D V14, RISAFloor...

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January 14, 2016

Importing a Time History Function

New in RISA-3D v14 is the introduction of a Time History analysis feature....

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January 07, 2016

Mechanically Graded Wood Design now Available

Mechanically graded wood materials have been added for the AWC NDS 2015...

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December 22, 2015

Wood Design per AWC NDS 2015 Wood Code

The latest versions of RISA-3D and RISAFloor now incorporate the AWC NDS...

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December 16, 2015

Concrete Design per ACI 318-14 Concrete Code now Available

The new ACI 318-14 code has been implemented into RISA-3D v14, RISAFloor...

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December 09, 2015

Envelope Detail Report Results

RISA-3D v14 introduced envelope detail reports for all material members....

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