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Structural Calculations <br /> Equipment 1 Desiiqn Loads <br /> Lc:=151.5 in length of unit <br /> h :=74.7 in height of compressor <br /> c <br /> C0Gc:=40 in height of center of gravity <br /> LRISA:=9.535 ft length of line load applied in RISA analysis <br /> danchors:'3.417 ft distance between anchor lines <br /> Dead Load <br /> q. 1=293 7 lbf weight of pipe (20" Sch. 40) including contents <br /> pipeft <br /> L pipe:=8 ft length of pipe tributary to unit <br /> We:=17254 lbf+gplpe•Lpipe=19603.6 lbf weight of unit <br /> qDL:= 2•Lc =1027.9811 lbf weight on anchor line <br /> RISA <br /> ft <br /> Wind Load <br /> Forces imparted on the tanks by the wind will be determined in the ASCE 7 as permitted by IBC <br /> Section 1609.1.1. The provisions for the tanks will therefore be determined using Chapters 26 <br /> and 29. See the calculations below. <br /> V:=109 mph basic :wind speed per Figure 26.5-1B <br /> B exposure category per Section 26.7 <br /> G:=0.85 gust effect factor per Section 26.11.4 <br /> K z:=0.57 velocity pressure exposure coefficient per -able 26.10-1 <br /> KZt:=1.13 topographic factor per <br /> Kd:=0.95 wind directionality factor per Table 26.6-1, <br /> Footnote a <br /> K e:=1 ground elevation factor per Section 26.9 <br /> 2 <br /> V <br /> qZ:=0.00256•KZ•KZt Kd Ke'(m h Psf=18.6psf velocity pressure ner Equation 26.10-1 <br /> P <br /> Cf:=1.4 force coefficient per Figure 29.3-1 <br /> cw:=gz•G•Cf•(Lc•hc)=1741 lbf design wind force on tank per Equation 29.4-1 <br /> *cw:=Fcw.COG c=5.801/18 kip ft overturning moment on tank <br /> gcvW <br /> P1cw =178.0741 lbf vertical force on anchor line <br /> °_ <br /> (danchors•LRISA, ft <br /> q - Fcw =91.2719 lbf horizontal force on anchor line <br /> chw`-2.L f t <br /> RISA <br /> PSE project 2405-0007 date 2/25/2025 <br /> Peterson Structural Engineers,Inc. <br /> www.psengineers.com designer TJC sheet 7 of 46 <br /> VETERSURSTRUCTUML ENCP1EERS <br />