Laserfiche WebLink
Project Description <br /> We will provide the structural engineering design and drawings for the addition of(9)44"x <br /> 120"and(3)44"x 96"storage racks. They will be located under the storage building canopy <br /> and they will bear on an existing concrete slab and/or curb. It is our understanding that the <br /> racks themselves are pre-engineered to support the proposed 3,000 lb per shelf loading. CG <br /> Engineering will design the seismic anchorage at the base and verify that the slab and/or curb <br /> are sufficient for bearing. Details showing alterations to the rack legs will be provided for the <br /> condition at the curb. <br /> Scope of Work <br /> We will provide stamped structural calculations in accordance with the current building code. <br /> Basis of Design <br /> Cabinet Dead 110lb <br /> Live 3000 lb(per rack) <br /> Wind Parameters <br /> Wind Speed,3-Sec Gust 98 MPH <br /> Exposure Category B <br /> Importance Factor,IW 1 (Non-Essential Facility) <br /> Mean Height 12 (FT Above Grade Elevation) <br /> Seismic Parameters <br /> V=Wp*[Sds/(R/le)]=Sds/(6.5/1)=Cs*Wp <br /> Sds 1.102 <br /> Importance Factor,le 1 (Non-Essential Facility) <br /> Wp=Seismic Dead Weight of Stucture <br /> C � Description By Date <br /> SPM 4/7/2025 <br /> Project Summary Checked Date <br /> ENGINEERING Scale NTS Sheet No. <br /> 250 4th Ave South project Job No. <br /> Suite 200 Sno PUD Op Center East Storage Racks 25270.003 <br /> Edmonds,WA 98020 <br /> 1 <br />