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August 21, 2019

The new release of RISA-3D is right around the corner! Check out our teaser videos to enjoy a sneak peek at some of the most exciting new features!

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Posted in Education, What's New | Comments Off on RISA-3D v18 Sneak Peek Videos

July 12, 2019

Tension or Compression (T/C) Only members are commonly used in steel buildings when modeling braced frames that resist lateral load.  Note: Tension or Compression Only Members can also be used in modeling cables or construction gaps. Detailed discussions on these applications can be found here: Cables | Gap  As a result, tension only members will […]

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Posted in What's New | Comments Off on Implementing Realistic Behavior for T/C Members in RISA-3D

March 28, 2019

RISA-3D has two ways of automatically generating seismic-related Basic Load Categories (BLCs) which can be later referenced in the Load Combinations (LCs):   Creating seismic BLCs (ELX, ELZ, etc) from the Seismic Load Generator Creating seismic BLCs (SX, SZ, etc) from Response Spectra Analysis In addition to the automatic generated seismic loads, users can always […]

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Posted in Education, Technical Solutions | Comments Off on General Steps of Assigning Seismic Loads in RISA-3D

March 21, 2019

The Load Combinations for each region are contained in an XML file which can be opened and edited using a standard spreadsheet program. An example of one of these XML files is shown below: The name of the file itself becomes the name of the Load Combination Region that appears in the Load Combination Generator. […]

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Posted in Technical Solutions | Comments Off on Creating Custom Load Combinations in RISA-3D

February 7, 2019

In this video, you’ll learn how to investigate your RISA-3D model for P-Delta divergence errors. This type of error is common in general structural analysis software and has two major causes: a model that is unstable or a model that is too flexible. For this investigation, two separate steel frame models will be used to […]

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Posted in Technical Solutions | Comments Off on How to Fix a P-Delta Divergence in RISA-3D