Tips & Tricks

January 1, 2026

Top RISA-3D Features Engineers Underuse

Powerful Tools Don’t Help If They’re Left Unused Many engineers evaluate analysis software based on core modeling and design checks. But once a demo is over, some of the most impactful features are the ones that quietly save time on real projects — especially mid-size jobs where efficiency matters most. These aren’t advanced edge-case tools. They’re everyday features that often go underused. Diaphragm Forces: See Load Paths Instead of Guessing Diaphragm force output is one of the most valuable — and least leveraged — parts of a full building model. Instead of relying on manual distribution or conservative assumptions, engineers can directly see how loads are flowing to vertical elements. For mid-size structures, this clarity can mean: Fewer overdesigned collectors More confidence in lateral load paths Faster review and revisions when layouts change Batch Results: Review Smarter, Not Longer Batch results allow engineers to review multiple load cases, members, or design checks in a single pass. Instead of hunting through individual reports, patterns become obvious quickly. On mid-size jobs, this speeds up: QA/QC reviews Iterative design changes Comparing “before and after” scenarios It’s not about skipping checks — it’s about seeing the full picture sooner. Design Iteration Speed Is the…

Read More

New Features in RISACore v22.0 Release
February 20, 2024

New Features in RISACore v22.0 Release

New features are now available in the recent release of RISACore (RISA-3D v22.0, RISAFloor v18.0, and RISAFoundation v16.0) . We are working hard to add the features and functionality that our customers have requested as soon as they become available. With that in mind, we have prepared a new...

Read More
How To: Understand Long Term Deflection Results in RISAFloor ES
January 16, 2024

How To: Understand Long Term Deflection Results in RISAFloor ES

RISAFloor ES allows users to analyze Long Term Deflection for Concrete Floor Slabs using "User Defined" as the design method. For more information on how to model Long Term Deflection in RISAFloor ES, follow our other article link below. In this article, you'll learn how to: Understand Deflection...

Read More
New Features in RISACore v21.0.1 Release
June 8, 2023

New Features in RISACore v21.0.1 Release

New features are now available in the recent release of RISACore (RISA-3D v21.0.1, RISAFloor v17.0.1, and RISAFoundation v15.0.1) . We are working hard to add the features and functionality that our customers have requested as soon as they become available. With that in mind, we have prepared a new...

Read More
Updated Shear Contribution for Concrete (Vc) per ACI 318-19
October 29, 2020

Updated Shear Contribution for Concrete (Vc) per ACI 318-19

The new ACI 318-19 code has been implemented into RISA-3D v19, RISAFloor v15, and RISAFoundation v13. One of the biggest changes between the ACI 318-14 code and the ACI 318-19 code is the shear contribution provided by the concrete, Vc.

Read More
RISA Acquires ADAPT Corporation
May 13, 2020

RISA Acquires ADAPT Corporation

RISA is excited to announce the acquisition of ADAPT Corporation. Over the past 30 years, both RISA and ADAPT have focused on developing best in class solutions that directly respond to the needs of our customers and the market, while also maintaining the highest level of customer support. As a...

Read More
Long Term Deflection in RISAFloor ES
April 26, 2018

Long Term Deflection in RISAFloor ES

RISAFloor ES has the ability to check the Long Term Deflection with Creep and Shrinkage. The program uses an iterative method to adjust the plate stiffness until it converges upon a solution. You can setup all the necessary coefficients and factors in the Model Settings (as shown below).

Read More
2018 IBC Coming Soon!
November 8, 2017

2018 IBC Coming Soon!

The International Code Council just released the 2018 International Building Code (IBC) in August 2017.

Read More
What is a Semi-Rigid Diaphragm?
March 10, 2015

What is a Semi-Rigid Diaphragm?

RISAFloor Concrete Floor Slabs can design be transferred into RISA-3D for lateral design using either a Rigid Diaphragm or Semi-Rigid diaphragm. In RISA-3D, the wind and seismic loads are calculated and then applied into the diaphragm level to distribute the forces to the Lateral Resisting System.

Read More