Snow: 20 psf of horizontal projection Roofing: 12 psf MC8 x 8.5 purlins Truss welght: 1000 Ib (estimated) a. Use LRFD. b. Use ASD. 3'-0 3@ 10'-0* = 30'-0"
Snow: 20 psf of horizontal projection Roofing: 12 psf MC8 x 8.5 purlins Truss welght: 1000 Ib (estimated) a. Use LRFD. b. Use ASD. 3'-0 3@ 10'-0* = 30'-0"
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Draw a free body diagram for Rbx and Fbc

Transcribed Image Text:Tension Members in Roof Trusses
Use A992 steel and select a structural tee for the top chord of the welded roof truss
shown in Figure P3.8-1. All connections are made with longitudinal plus transverse
welds. Assume a connection length of 12 inches. The spacing of trusses in the roof
system is 15 feet. Design for the following loads.
3.8-1

Transcribed Image Text:Snow: 20 psf of horizontal projection
Roofing: 12 psf
MC8 x 8.5 purlins
Truss welght: 1000 Ib (estimated)
a. Use LRFD.
b. Use ASD.
3'-0
3@ 10'-0 = 30'-0"
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