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RB Entineers,Inc. Project: Bement Residence By: RB/MJT <br /> 1312 2nd St Kirkland,WA Client: Brookes Design Date: 7/9/2021 <br /> Phone: (425)822-3009 Subject: Lateral Page: <br /> Email: rbe1992@gmail.com <br /> LATERAL QUAKE FORCES <br /> Cs: 0.2 p: 1.0 <br /> Roof Area: 1636 feet 2 Roof Dead Load: 13 psf <br /> Upper Ares 1953 feet 2 Floor Dead Load: 13 psf <br /> Wall Dead Load: 8 psf <br /> ASCE 7-16 Using Allowable Stress Design,2.4.5 Basic Combination option 10:0.6 D+0.7 Eb-0.7E,, <br /> ASCE 7-16 Table 12.2-1: Overstrength factor,SI=2.5 <br /> DEAD LOAD OF STRUCTURE <br /> Roof Weight= 1636 x(13+8)_ = 34.36 kip <br /> Upper Weight= 1953 x(13+8)_ = 41.01 kip <br /> 75.37 kip <br /> Vbase=Cs x E Weight= 0.2 x 75.37 = 15.07 kip <br /> Vasa= Vbase x 0.7 x p =r 10.55 kip <br /> LATERAL FORCES <br /> WEIGHT HEIGHT WEIGHT x HEIGHT <br /> Roof: 34.36 kip 18.5 Feet 635.59 <br /> Upper: 41.01 kip 9.5 Feet 389.62 <br /> 1025.21 <br /> Fq Roof: 13.72 x(635.59/1025.21)_ = 6.54 kip <br /> Fq Upper: 13.72 x(389.62/1025.21)_ = 4.01 kip <br /> Therefore quake governs all. <br />