What specific "general notes" lead you to believe that these existing roof rurlins will NOT comply?
--- On Wed, 6/11/08, Drew Morris <dmorris@bbfm.com> wrote:
From: Drew Morris <dmorris@bbfm.com>
Subject: 1985 pre-manufactured building
To: "SEAINT" <seaint@seaint.org>
Date: Wednesday, June 11, 2008, 7:10 PM
I am evaluating an existing pre-manufactured building that was designed in 1985 under the 1982 UBC. The roof purlins are 12 gage. Is it safe to assume that these are Fy = 50 ksi? At 33 ksi, they don't meet the loads in the General Notes. Also, would the columns and frames be A36? A572 Gr 50 was available then, but I am not sure if that material was used by the manufacturers. Would it have been cheaper to use thicker and wider plates of A36 versus some material with Fy = 50 ksi. ******* ****** ******* ******** ******* ******* ******* *** * Read list FAQ at: http://www.seaint.org/list_FAQ.asp * * This email was sent to you via Structural Engineers * Association of Southern California (SEAOSC) server. To * subscribe (no fee) or UnSubscribe, please go to: * * http://www.seaint.org/sealist1.asp * * Questions to seaint-ad@seaint.org. Remember, any email you * send to the list is public domain and may be re-posted * without your permission. Make sure you visit our web * site at: http://www.seaint.org ******* ****** ****** ****** ******* ****** ****** ******** |