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Project: Everett Mall Canopy Job Number: 23-695 <br />mXFCS Sheet: of Name: LAE <br />Structural Solutions Originating Office: Tacoma Date: 09/27/21 <br />DESIGN CRITERIA - SEISMIC <br />ASCE 7-16 SECTION 12.8 - EQUIVALENT LATERAL FORCE PROCEDURE <br />RISK CATEGORY: <br />II <br />LATITUDE: <br />47.910 <br />SITE CLASS: <br />D <br />LONGITUDE: <br />-122.219 <br />IMPORTANCE FACTOR (IE): <br />I <br />Ss = <br />1.362 <br />STRUCTURAL SYSTEM (R): <br />3.5 <br />St = <br />0.483 <br />OVERSTRENGTH FACTOR (Q.): <br />3 <br />Fa = <br />1.200 <br />F� = <br />2.000 <br />ASCE 7-16 SECTION 11.4 SEISMIC GROUND MOTION VALUES <br />Section 11.4.4 - Coefficients and Risk -Targeted Maximum Considered Earthquake (MCER) Spectral Response Acceleration Parameters <br />Sluts = Fa*Ss = 1.634 Sm, = Fv*St = 0.966 <br />Section 11.4.5 - Design Spectral Response Acceleration Parameters <br />SDS = 2/3*SMs = 1.090 SDI = 2/3*SMt = 0.644 <br />ASCE 7-16 SECTION 11.6 - SEISMIC DESIGN CATEGORY - SECTION 12.8.2 - PERIOD DETERMINATION <br />ASCE 7-16 TABLE 11.6-1 <br />SEISMIC DESIGN CATEGORY BASED ON SDs <br />RISK CATEGORY: <br />I & II <br />III <br />1V <br />< 0.167g <br />A <br />A <br />A <br />< 0.33g <br />B <br />B <br />C <br />< 0.50g <br />C <br />C <br />D <br />>= 0.50g <br />D <br />D <br />D <br />D <br />ASCE 7-16 TABLE 11.6-2 <br />SEISMIC DESIGN CATEGORY BASED ON SDI <br />RISK CATEGORY: <br />I & II <br />III <br />IV <br />< 0.067g <br />A <br />A <br />A <br />< 0.133g <br />B <br />B <br />C <br />< 0.20g <br />C <br />C <br />D <br />>= 0.20g <br />D <br />D <br />D <br />D <br />ASCE 7-16 SECTION 12.8.1.1 - SEISMIC RESPONSE COEFFICIENT <br />GENERAL EQUATION <br />CS = SDS/(R/I) = <br />CS = 1.5*SD1/(T*(R/1)) = <br />MINIMUM: Cs = 0.044*SDs*I > 0.01 = <br />For structures located where S 1 > 0.6g <br />CS = 0.5*Sl/(R/1) = <br />ASCE 7-16 SECTION 12.8.1 - SEISMIC BASE SHEAR <br />Each building and structure shall <br />be assigned to the most severe <br />Seismic Design Category in <br />accordance with Table 11.6-1 or <br />Table 11.6-2, irrespective of the <br />fundamental period of vibration of <br />the structure. <br />PERIOD DETERMINATION: <br />Cl = 0.02 <br />k = 50 FT <br />x = 0.75 <br />Ta = Ct*h„" = 0.376 <br />0.311 <--CONTROLS EQ.12.8-2 <br />0.734 EQ. 12.8-3 <br />0.048 EQ. 12.8-5 <br />0.000 EQ. 12.8-6 <br />V = Cs*W = 0.311*W W = the total dead load and applicable portion of other loads as <br />indicated in Section 12.7.2 <br />Design Criteria - IBC2018 - Revised 04/12/21 23695 Design Criteria 2023-09-27 lah(Earthquake) <br />