August 27, 2020

VIDEO: Creating Custom Shapes in RISA-3D

Learn how to build custom steel and concrete shapes using RISASection and then import them into RISA-3D to incorporate them in analysis and design.

Tags: RISA-3D, New, RISASection

January 2, 2014 | RISA-3D, New, RISASection

Designing Built-Up Sections using RISA-3D

Use RISASection to find the properties of built-up steel sections, then model beams using the same section properties in RISA-3D and get full code-checks using AISC 360. This webinar will teach you how to use RISASection quickly and easily to determine complex section properties…

August 7, 2019 | New, News

RISA Employees Volunteers at Second Harvest Food Bank

Last week, RISA employees spend two days volunteering at the Second Harvest Food Bank of Orange County, CA. Both days were spent at the Food Distribution Center, where staff and volunteers worked together to sort, package and distribute enough food to feed 250,000 men, women and children each month. The food bank is the largest nonprofit hunger relief organization leading the fight to end hunger in Orange County, providing over 25.1 million last year. A big thank you to everyone who volunteered!…

May 26, 2011 | RISA-3D, RISAFloor, New, Wind

How to Represent Trusses in RISAFloor Model Without Modeling the…

Using this method in RISAFloor, we are not actually designing the trusses, but just adding “dummy” bottom and top chords to correctly calculate the loading and help distribute the loads to the walls. In RISAFloor, you need two floors in order to draw the bottom chord and top chords. The second floor can be a little bit higher than the first floor; 6 inches is reasonable for the heel height of the truss. Floor Plan 1: Model the bottom chord of the trusses. Define these members as lateral members so that we bring them into RISA-3D. Make sure to add a Diaphragm Region on this level in order to distribute the loads only to the walls. Floor Plan 2: This level is sloped and the wind loads are generated based on this slope. Make sure to turn on the Generate Roof Wind Loads in the Wind Loads dialogue. The top chords are modeled as gravity and the ridge beams outline the slope as lateral members. The gravity columns will point load Floor Plan 1 (shown above), and carry the loads to the walls. Take the model into RISA-3D, and the wind loads will be applied to the sloping members as…