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Seismic Loads <br /> Forces due to earthquakes will be determined using Chapters 11 and 13 of the ASCE 7 per <br /> Section 1613.1 of the IBC. The site-specific parameters below are as provided from the ASCE <br /> Hazard Tool. <br /> D aasumed seismic soil cla.-- <br /> Ie:=1.50 seismic importance factor per Section 1.5.1 <br /> SS:=1.369 mapped risk-targeted maximum considered earthquake spectral <br /> acceleration parameter at short periods per ASCE 7 Hazard Tool <br /> Fa :=1.0 short-term site coefficient per Table 11.4-1 <br /> Srrs`-a -Ss=1.369 mapped risk-targeted maximum considered earthquake <br /> spectral acceleration parameter at short periods <br /> adjusted for site class effects per Equation 11.4-1 <br /> 2 design earthquake spectral response acceleratio:. <br /> SDS:= 3 •Sees=0.913 parameter at short periods per Equation 11.4-.3 <br /> RP:=2.5 seismic coefficient for mechanical heat exchanger_ <br /> per Table 13.6-1 <br /> a :=1 <br /> P <br /> 0.4•a •Sos•Tahe <br /> VheE'— P =4487.38491bf seismic base shear per Equation 13.3- 1 <br /> JR Ie� <br /> p:=1.o redundancy factor per Section 12.3.4 <br /> Ehhe'-P•VheE=4487 lbf horizontal seismic load effect per Equation 12.4-3 <br /> Evhe°=0.2•SDS-Whe=3739 lbf vertical seismic load effect per Equation 12.4-4a <br /> rrheE`-VheE'COGc=14.9579 kip ft overturning moment on tank <br /> P = MheE =801.3187 lbf vertical force on each anchor about length <br /> he vE1 ( <br /> l2 Lanch, <br /> P _ hlheE =3068.2973 lbf vertical force on each anchor about width <br /> hevE2 ( <br /> l 2*danch, <br /> VheE <br /> PhehW:= <br /> =1121.8462 lbf horizontal force on each anchor <br /> 4 <br /> Equipment 3 Design Loads <br /> Ldh :=6.2 ft length of unit <br /> hdh'=49.5 in height of compressor <br /> COGdh:=1.5 ft height of center of gravity <br /> Lanch°=3.33 ft long distance between anchors <br /> danch°=1.5 ft short distance between anchors <br /> project 2405-0007 date 2/25/2025 <br /> PSE Peterson Structural Engineers,Inc. <br /> www.psengineers.com designer TJC sheet 10 of 46 <br /> PETERSON STRUCTURAL ENGINEERS <br />