September 13, 2018

Steel Design per AISC 15th Edition Steel Manual now Available

By: RISA

The new AISC 360-16 15th Edition changes have been implemented into RISA-3D v17.0 and RISAFloor v13.0.

Specification for structural steel buildings a360 16

To select this code for your design, simply choose them from the Codes tab within the Model Settings.

A few notable changes in RISA between the 14th Edition and 15th Edition of the AISC code include:

Updated shape database
Updated slenderness ratio limits
Updated method to calculate b for the Direct Analysis Method stiffness reduction
Revised method of calculating effective area for slender compression elements
Brand new check for lateral-torsional buckling on rectangular HSS members

Tags: RISA-3D, RISAFloor, New, Steel

February 14, 2019 | New, Steel, RISAConnection

Connection Design per AISC 15th Edition Steel Manual now Available

Connection design according to the new AISC 360-16 (15th Ed.) Steel Manual has now been implemented in RISAConnection. To select this code for your design, simply choose either LRFD or ASD from the Solution tab within the Global Project Settings. The addition of the new 15th Edition code, includes the following updates/changes from the previous 14th Edition: New materials for members and plates per section A3.1a Updated available bolt materials per section A3.3 Updated nominal hole dimensions per Table J3.3 New out of plane yielding checks for column web connections Updated the HSS connection checks per the revised Chapter K tables (for more information see the RISANews article, Updates to HSS Connections) To see a full comparison of the revisions made in the 15th Edition code, visit the document on the AISC’s website by clicking the link below: Link: AISC 360-16 vs AISC 360-10…

February 15, 2017 | RISA-3D, RISAFloor, RISA-2D, New, Steel, Canadian

CSA S16-14 Canadian Steel Code now Available

RISA-3D now supports hot rolled steel design for the Canadian market according to CSA S16-14. New to RISAFloor and RISA-3D is the ability to set the L-Torque length for the CSA S16-14 code. In previous versions of the Canadian code, RISAFloor and RISA-3D used the full member length as the torque length when calculating torsional buckling. Now per CSA S16-14 Clause 13.3.2, we’ve added the L-Torque input for the Canadian steel code similar to how it is done in the AISC 13th/14th. The input for L-Torque length is entered in the Members spreadsheet or in the Property Grid. The Detail Report shows the torque length separate from the other lengths for CSA S16-14: For the 2009 and 2014 Canadian steel code, when the section is Class 4 (slender cross-section) the program uses an effective yield stress Fye. Thus the code check on class 4 members (for CSA S16-09 and CSA S16-14), uses a yield strength that is different from the specified material Fy. A note has been added to the Detail Report indicating to the user what yield strength values were used which can be important information when trying to reproduce the output values. The Fy has only been adjusted…

December 19, 2017 | RISA-3D, RISAFloor, New, Steel

Cold-Formed Steel Design Codes Update

An update to the Cold-Formed Steel Design Codes has been added to RISA-3D v16.0 and RISAFloor v12.0. Updated Codes include: AISI S100-16 (ASD) AISI S100-16 (LRFD) CSA S136-16 (LSD) CANACERO 2016 (ASD) To use these codes in the design of your model, choose the version you’d like to use from the Codes tab of your Model Settings and select OK…