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PROJECT JOB NO.241285 <br />Villa del Sur Apts - Voluntary seismic retrofit <br />MADE BY LMC/PVB DATE 7/9/2024 PAGE <br />BUILDING G & I <br />STL. SPECIAL CANT. COLUMNS <br />Weight <br />(psf) <br />Trib. Width/Ht. <br />(ft.) or Area <br />(SF) <br />Length <br />(ft.)Weight (lbs) <br />Roof 11 16.00 142.66 25108 <br />0 0.00 0 0 <br />0 0.00 0 0 <br />40 14.50 148 85840 <br />0 0.00 0 0 <br />15 8.50 140 17850 <br />2nd-Roof 15 8.50 24 3060 <br />0 0.00 0 0 <br />15 4.17 35.5 2218 <br />15 4.17 140 8747 <br />15 -2.83 112 -4754 <br />Total Wt.=138068 lb <br />SDS=1.044 SDC:D <br />R = 2.5 Steel Spec. Cant. Col.S1=0.466 <br />Ωo =1.25 Flexible Diaphragm <br />Cd = 2.5 <br />Ie= 1 <br />Cs= SDS/(R/Ie)0.42 <br />V = 0.75CsW =43 kip (LRFD) <br />30 kip (ASD) <br />2701 Mc FADEN AVE, SANTA ANA, CA 92704 <br />W, EFFECTIVE SEISMIC WEIGHT <br />2nd Floor <br />Ext. Wall <br />1st-2nd <br />© 7/11/2024 Coffman Engineers, Inc. <br />Seismic Wt & Base Shear Bldg G & I Page 15 <br />DIVIDE BY (4) <br />COLUMNS <br />Vu = 10.75 kip per <br />column <br />ρ = 1.0 <br />ONE COLUMN IS <br />25% OF 4 COLUMNS <br />2701 W McFadden Ave <br />#F-I2/6/2025