RAM SBeam v3.0

RE: RAM SBeam v3.0

Seth Guthrie — Mon, 28 Nov 2016 20:29:09 GMT

Yes, that 0.85 value is from the LRFD 3rd edition which is the code you referenced in the first post. If you want to use other codes choose them under Criteria - Design. As noted in several other posts, we have yet to update SBeam for the 2010 code, however.

RE: RAM SBeam v3.0

Reginald Askew — Mon, 28 Nov 2016 19:00:59 GMT

In section I3.2(a) the phi factor is 0.9. Was this value different in the 3rd edition of AISC LRFD? It's been 0.9 in the last two versions of AISC.

RE: RAM SBeam v3.0

Seth Guthrie — Mon, 28 Nov 2016 18:56:12 GMT

See section I3.2(a)

RE: RAM SBeam v3.0

Reginald Askew — Mon, 28 Nov 2016 18:21:03 GMT

Thank you. My apologies for the phi factor for shear; this is laid out in AISC. However, I am trying to find reason for the flexure 0.85 factor for post-composite behavior.

RE: RAM SBeam v3.0

Seth Guthrie — Mon, 28 Nov 2016 17:11:27 GMT

In the LRFD third edition, the phi factor for beam shear is 0.9 (see section F2). It's shown in the output report just in front of Vn in the Shear (ultimate) section.

For flexure, Phi can be 0.9 or 0.85 depending on the state (precomposite or post composite) and that's also shown on the report in the Moments section.