Laserfiche WebLink
Chord Analysis - Plan 1 <br />Main Roof (E-W Chord, N-S Force) <br />Seismic Diaphragm Force Distribution = PSF <br />Distributed Load = PSF * D = PLF <br />Moment = PLF * W ^ 2 / 8 = FT-LB <br />Chord Force = Moment / D = LBS <br />DRAG FORCE = LBS <br />Main Roof (N-S Chord, E-W Force) <br />Seismic Diaphragm Force Distribution = PSF <br />Distributed Load = PSF * W = PLF <br />Moment = PLF * D ^ 2 / 8 = FT-LB <br />Chord Force = Moment / W = LBS <br />MAX. DRAG FORCE = LBS <br />W = ft <br />D = ft Main Roof <br />195 <br />3.90 <br />15600 <br />780 <br />195 <br />20 <br />40 <br />156 <br />7800 <br />780 <br />78 <br />3.90 <br />Page 31