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Design Charts (was RE: Dallas Cowboys roof collapse)

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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(--nospam--at)apawood.org

www.apawood.org

 

 

 

From: Gil Brock [mailto:gil(--nospam--at)raptsoftware.com]
Sent: Monday, June 29, 2009 11:22
To: seaint(--nospam--at)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!.