Read my reply to Daryl. I did not say all. But the designer must check the veracity of tables/span charts/software etc if he is going to use them commercially. He is responsible for the design, not the developer of the charts.
At 06:27 AM 30/06/2009, you wrote:
Please clarify this statement? Do you run span tables for TJIs? Do you use Simpson catalog for LTP4s? Do you use AISC Steel manual charts for unbraced wide flanges?
I understand where you are coming from, but being an organization that provides �span charts� for glulams, panels et cetera, it would strike me that SOME use of charts and tables greatly increase your productivity. I�m also a firm believer in �trust but verify�, but I�d certainly not claim to know more about hanger design than Simpson Strong-Tie.
Tom
Thomas D. Skaggs, Ph.D., P.E.
Manager, Product Evaluation
APA
7011 S. 19th Street
Tacoma, WA 98466
253-620-7479 (office)
253-620-7235 (fax)
tom.skaggs@apawood.org
www.apawood.org
From: Gil Brock [ mailto:gil@raptsoftware.com]
Sent: Monday, June 29, 2009 11:22
To: seaint@seaint.org
Subject: RE: Dallas Cowboys roof collapse
I cannot believe that an engineer being paid to "design" a building or a component of a building will not do his/her own calculations to justify the design of these types of elements, rather than picking a number from a table!.
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