How to calculate truss dead load in PSF?
How to calculate truss dead load in PSF?
(OP)
I am working on a project where we are using wood trusses (2x6 for top and bottom chord, 2x4 for web). I am trying to figure out a psf from the weight of the truss but am hitting a road block. I have attached a picture of my attempt. Any help here would be much appreciated. I use a 44pcf for wood to be conservative. Thanks!






RE: How to calculate truss dead load in PSF?
Divide that number by the truss spacing = PSF.
RE: How to calculate truss dead load in PSF?
Dik
RE: How to calculate truss dead load in PSF?
slope factor (slope length divided by run length)
0:12=1, 5:12=1.1, 12:12=1.4 (rise : run)
Assume a 5:12 roof, flat ceiling
TCDL(slope factor)+ BCDL + 1.5(slope factor) WebDL = truss psl
2.3(1.1) + 2.3 + 1.5(1.1)1.5 = 7.3 psl at 2'o.c. = 3.7 psf
Garth Dreger PE
AZ Phoenix area
RE: How to calculate truss dead load in PSF?
RE: How to calculate truss dead load in PSF?
Construction" 3 rd Ed. Faherty and williamson.
RE: How to calculate truss dead load in PSF?