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RE: Avansee Code Check question

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I believe many structural engineering programs (I am most familiar with STAAD3), assume an unbraced length equal to the beam length by default. If you want to specify something shorter (i.e. zero), you need to implicitly state that.
Bill Allen
-----Original Message-----
From: Dennis S. Wish PE [mailto:wish(--nospam--at)]
Sent: Saturday, October 03, 1998 2:17 PM
To: SEA International List
Subject: Avansee Code Check question

I have downloaded the Avansee program and compared a simple one bay frame against a couple other programs. The only discrepency I found is in the AISC code check - specifically the bending stress ratio.
I have written to Avansee to get a response, but wondered if anyone else has discovered a problem with this feature.
Assume the Moment at the node is 63 ft-kips and section modulus for the member in the strong direction is 88 in^3 (these are close approximates of the W18x50 member used in my example). Avansee indicates that the actual bending stress ratio exceeds 1.0 which can not be the case since 63*12/88 = 8.8 ksi - a far cry from 21.6 ksi allowable.
I'm curious if anyone else has identified a problem in this module?
Dennis S. Wish PE