Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Re: Residential drag trusses

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Mark,
 
I would use your item #1 and verify the truss calcs that the design factored loads were per the code when you review the calcs for the gravity loads.
Ray Shreenan  SE
----- Original Message -----
Sent: Saturday, March 04, 2006 2:03 PM
Subject: Residential drag trusses

How are others notating the drag truss force on their residential roof framing plans (97 UBC) such that the truss manufacturer designs the truss for the proper force and adjustment factors?

 

For example:

 

  1. Label the truss on plan as having 3000# drag force and a note elsewhere on the framing plan that truss manufacturer must design per section 1633.2.6 Collector Elements.
  2. Label the truss on plan as having 11,760# drag force (1.4x2.8x3000) and a note elsewhere on the framing plan that states force is listed as strength level with omega applied, truss manufacturer shall design per 1633.2.6 Collector Elements.

 

TIA

 

Mark D. Baker