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October 19, 2018

Eurocode lateral torsional buckling capacity is calculated per equations in Annex F in the ENV 1993-1-1:1992. This calculation uses variables C1, C2 and C3. Since there is no generic formula in the Eurocode to calculate the moment gradient factor, C1, RISA will use the widely accepted López, Yong and Serna method by default. The method […]

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Posted in Technical Solutions | Comments Off on Eurocode C1 Factor for Lateral Torsional Buckling

September 13, 2018

The new AISC 360-16 15th Edition changes have been implemented into RISA-3D v17.0 and RISAFloor v13.0. To select this code for your design, simply choose them from the Codes tab within the Global Model Settings. A few notable changes in RISA between the 14th Edition and 15th Edition of the AISC code include: Updated shape database […]

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Posted in Education, What's New | Comments Off on Steel Design per AISC 15th Edition Steel Manual

October 10, 2017

Stainless steel provisions are now in RISA based on the AISC Design Guide 27 Structural Stainless Steel. Stainless steel shape properties and member design are based on the recommendations in the AISC Design Guide 27 Structural Stainless Steel.  The procedure outlined in the design guide follows the 2010 AISC Specification and 14th Edition Steel Manual. In […]

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Posted in Technical Solutions | Comments Off on Stainless Steel Now in RISA

January 22, 2016

This recorded webinar will show you how to model a non-building or industrial type structure in RISA-3D. Examples like towers, tanks and open structures are shown. This is part 1 of a 3 part series of webinars.

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Posted in Technical Solutions | Comments Off on Modeling Non-Building Structures in RISA

July 16, 2015

Seismic OMF 1

Design for seismic connection detailing is done in RISAConnection per the AISC Seismic Design Manual, 2nd Edition (2010) which contains two documents: the AISC 341‐10 Seismic Provisions for Structural Steel Buildings and the AISC 358‐10 Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications. The AISC 358-10 is specifically for the design […]

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Posted in Technical Solutions | Comments Off on Ordinary Moment Frame (OMF) Considerations in RISAConnection