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Re: Design Charts (was RE: Dallas Cowboys roof collapse)

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Thomas,

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(--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!.

 

Regards  Gil Brock
Prestressed Concrete Design Consultants Pty. Ltd. (ABN 84 003 163 586)
5 Cameron Street Beenleigh Qld 4207 Australia
Ph +61 7 3807 8022               Fax +61 7 3807 8422
email:            gil(--nospam--at)raptsoftware.com
email:            sales(--nospam--at)raptsoftware.com
email:            support(--nospam--at)raptsoftware.com
webpage:         http://www.raptsoftware.com