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ASCE 7-16 Seismic Base Shear <br />LIC# : KW-06011877, Build:20.24.04.09 Mike Santos (c) ENERCALC INC 1983-2023 <br />DESCRIPTION:Seismic Base Shear Analysis <br />Project File: 2121 lewis.ec6 <br />Project Title: <br />Engineer: <br />Project ID: <br />Project Descr: <br />Seismic Base Shear ASCE 7-16 Section 12.8.1 <br />W ( see Sum Wi below ) =20.03 kCs =0.2130 from 12.8.1.1 <br />Seismic Base Shear V = Cs * W =4.26 k <br />Vertical Distribution of Seismic Forces ASCE 7-16 Section 12.8.3 <br />" k " : hx exponent based on Ta =1.00 <br />Table of building Weights by Floor Level... <br />Wi : Weight Hi : Height (Wi * Hi^k)Cvx Fx=Cvx * V Sum Story Shear Sum Story MomentLevel # <br />1 20.03 10.25 205.28 1.0000 4.26 4.26 0.00 <br />Sum Wi =20.03 k Total Base Shear =4.26 k <br />Base Moment = <br />205.28 k-ftSum Wi * Hi = <br />43.7 k-ft <br />Diaphragm Forces : Seismic Design Category "B" to "F"ASCE 7-16 12.10.1.1 <br />Level #Wi Fi Fpx : MaxFpx : CalcdSum Fi Sum Wi Fpx Dsgn. ForceFpx : Min <br />1 20.03 4.26 4.26 20.03 4.26 4.26 8.53 4.26 4.26 <br />Wpx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Weight at level of diaphragm and other structure elements attached to it. <br />Fi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Design Lateral Force applied at the level. <br />Sum Fi . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Sum of "Lat. Force" of current level plus all levels above <br />0.20 * S * I * WpxMIN Req'd Force @ Level . . . . . . . . . .DS <br />DSMAX Req'd Force @ Level . . . . . . . . . .0.40 * S * I * Wpx <br />Fpx : Design Force @ Level . . . . . . . . . .Wpx * SUM(x->n) Fi / SUM(x->n) wi, x = Current level, n = Top Level