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Structural Calculation Addendum <br /> ECEOVIEir-), For � <br /> JUN 0 6 2024D 11)) Bridge Point Tacoma 210 - <br /> Spec 8 Lii E <br /> CITY OF EVERETT <br /> p A H B L <br /> Permit Services Tacoma, WA JUN 2 2 2024 <br /> Project # 2240190.20 CITY OF EVERETT <br /> pR rmit Services <br /> Project Principal Andrew D McEachern PE St <br /> Project Manager Larry A Higgins PE <br /> Design Criteria <br /> Design Codes and Standards <br /> Codes and Standards: Structural design and construction shall be in accordance with the <br /> applicable sections of the following codes and standards as adopted and amended by the local <br /> building authority: International Building Code, 2021 Edition. <br /> Structural Design Criteria: <br /> Live Load Criteria: 16 Mel <br /> Mezzanine 50 psf+ 15psf Partition c• of wasitt 1Cs <br /> Seismic Criteria: S c. °� <br /> Risk Category II 440 .... f5 P' <br /> Seismic Importance Factor 1.0 At ;, <br /> Ss = 1.297 Si = 0.449 09,0 ' tCTv3�O' ' <br /> Sds = 1.038 Sdl = 0.449 �ss1ONAL °�Z <br /> Site Class = OWIAOIN <br /> Seismic Design Category = D <br /> Response Modification Coeff. (R): 5 <br /> Seismic Response Coeff. (Cs): 0.208 <br /> Soil Criteria: (Data from Original Building Design Documents) <br /> Based on Geotechnical Engineering Report by: Earth Solutions NW, dated April 2021. <br /> Allowable Soil Bearing Capacity: 3000psf allow 33% increase for loads from wind or seismic <br /> origin. <br /> Project Description <br /> The project consists of a small 3000sf wood mezzanine in a recently constructed concrete tilt <br /> industrial building. Structure consists of plywood deck supported by wood I-Joists and glulam <br /> beams. Beams are supported on steel columns. Warehouse side of beams include wood <br /> shearwalls. Two sides of mezzanine are supported on existing concrete tilt wall panels. <br /> Addendum added in response to City Comments. <br />