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2019-11-01

Torsion Design per Design Guide No. 9 in RF‑STEEL AISC

Does RF‑STEEL AISC perform torsion design per Design Guide No. 9?


Answer:

Yes, the AISC module will detect if there are bending or torsional forces on a member and design accordingly per Design Guide 9. The add-on module combines the shear stresses due to bending and axial loads calculated by RFEM and shear stresses calculated using St. Venant's Torsion to make design checks per Design Guide No. 9.

The Steel AISC module also has the option under "Details" to activate the RF‑STEEL Warping Torsion add-on module extension where a nonlinear warping torsion analysis is performed using 7 degrees of freedom. Normal and shear stresses on the member are independently determined from the AISC Design Guide No. 9. The loading used in this extension is taken directly from RFEM for analysis.


Author

Alex is responsible for customer training, technical support, and continued program development for the North American market.

Links
References
  1. American Institute of Steel Construction. (2016) Specification for Structural Steel Buildings, ANSI/AISC 360-16. Chicago: AISC.
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