January 2, 2014
Adjusting Slab Thickness in RISAFloor ES
January 2, 2014
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.
December 30, 2013
How Do I Model a Tapered Pipe?
Tapered members are common for metal buildings and pole-type structures. For tapered wide flange members RISA provides a quick way to generate a tapered section that can then be checked per the provisions of AISC Design Guide 25 on tapered wide flanges.
December 27, 2013
What are Web Doubler plates used for in RISAConnection?
For moment connections in RISAConnection there is an option to place web doubler plates on the column web. These plates act as a reinforcement for the column web to prevent panel zone shear failure. As shown below, when the flanges of a beam in a moment connection connect to a column they form a...
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 check) much higher than expected from bending shear alone. If you open the detail report and compare the shear demand to the shear capacity you may see that the demand/capacity is less than the Max Shear Check reported.
October 9, 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 360-05 (13th Edition) or AISC 360-10 (14th Edition) codes you may find references to a factor called Tau_b. To understand what this factor is you should first be familiar with the Stiffness Adjustment in RISA-3D, then see the...
September 6, 2013
Why Are The Steel Beam Deflections So Large?
When solving a RISA-3D model with hot rolled steel members under the AISC 360-05 (13th Edition), AISC 360-10 (14th Edition) or AISC 360-16 (15th Edition) codes you may find that your member deflections are roughly 20% larger than you would expect. To understand why see the AISC 360-10...
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 rectangular) shape can be done easily using some of RISA-3D’s automated generation tools. Below is the procedure for transitioning a circle into a square, but it should be clear how this could be accomplished for other similar...
August 14, 2013
How to Use International Shapes in RISAConnection
You can use the full library of international shapes inside of RISAConnection. Currently RISAConnection uses the American steel code AISC code for design checks; however you can customize your connection to use any of the International shapes available in the database.