Laserfiche WebLink
WoodWorks® Shearwalls 2352.wsw Feb. 20, 202313:29:46 <br />Flexible Diaphragm Seismic Design <br />SEISMIC INFORMATION <br />Level <br />Mass <br />Ibs <br />Area <br />s .ft <br />Story Shear [Ibs] <br />E-W N-S <br />E-W: Fpx <br />Diaphragm Force [Ibs] <br />Design N-S: Fpx <br />Design <br />2 <br />9156 <br />281.8 <br />2000 2000 <br />1400 <br />1400 1400 <br />1400 <br />1 <br />8488 <br />281.8 <br />931 931 <br />1283 <br />1283 1283 <br />1283 <br />All <br />17644 <br />- <br />2932 2932 <br />- <br />- - <br />- <br />Legend: <br />Mass - Sum of all generated and input building masses on level = wx in ASCE 7 equation 12.8-12. <br />Story Shear - Total unfactored (strength-leveg shear force induced at level x, = Fx in ASCE 7 equation 12.8-11. <br />Diaphragm Force - Minimum ASD-factored force for diaphragm design, used by Shearwalls only for drag strut forces, as per Exception to 12.10.2.1. Fpx is <br />from Eqns. 12.10-1, -2, and -3. Design = The greater of the story shear and Fpx + transfer forces from discontinuous shearlines, factored by overstrength <br />(omega) as per 12. 10. 1. 1. Omega = 2.5 as per 12.2-1. <br />Redundancy Factor p (rho): <br />E-W 1.30, N-S 1.30 <br />Input by user (overriding calculated value). <br />Applies to shearwall design, hold-down forces and the drag strut force component based on shearline forces; does not apply to story drift, out -of -plane force, <br />or the diaphragm force Fpx and the drag strut force component based on it. <br />Vertical Earthquake Load Ev <br />Ev = 0.2 Sds D; Sds = 1.08; Ev = 0.216 D unfactored; 0.151 D factored; total dead load factor: 0.6 - 0.151 = 0.449 tension, 1.0 + 0.151 = 1.151 compression. <br />24 <br />Page 49 of 63 <br />