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TVT <br /> October 24, 2017 <br /> Seth Burwash <br /> Fisher Construction Group <br /> Re: Everett Public Works Plan Check No: B1709-037 <br /> AD Systems Warehouse Expansion at 2201 100th St. SW <br /> Response to Plancheck Correction Notice <br /> Dear Seth: <br /> We have received the plancheck comments referenced above dated October 16th. Here is our response. <br /> Suggested Corrections PSM Response <br /> "4. It appears the chevron ("v") braced Please see calculations. HSS 5x5x3/8 and connections are adequate <br /> frames are being provided between the with overstrength factor. <br /> column bays. However, it is unclear from <br /> the permit calculations that horizontal <br /> beams (HSS 5x5x3/8) has been designed <br /> with the brace forces in tension and <br /> compression modeled per AISC 341-10 Sec <br /> 4a (1) requirements. Please clam and <br /> revise connection and details relevant to the <br /> HSS beam." <br /> "5. Please address the lateral bracing of Please see calculations. HSS 5x5x3/8 brace stiffness and combined <br /> the new horizontal HSS 5x5x3/8 beams that forces from nodal bracing load adequate. <br /> form the intersection of the new braces per <br /> AISC 341-10 Sec 4b." <br /> "6. It appears the existing columns are Please see calculations. Existing W10x33 are adequate with <br /> being used as part of the revised lateral overstrength factor. <br /> force resisting system configuration. Please <br /> address the strength requirements of the <br /> existing columns per AISC 341-10 Sec D4 <br /> (1)and(2)." <br /> "7. It appears that details 1/S2.3, 2/S2.3, Please see calculations. 1/S2.4 horizontal weld updated, 1/S2.3 and <br /> and 1/S2.4 are receiving additional welds 2/S2.3 vertical welds updated. <br /> and plate connections to existing gusset <br /> plates and columns. The permit <br /> calculations show the design of brace to <br /> gusset plate. Please provide additional <br /> calculations that verb that force transfer of <br /> the new braced frame can resist the new <br /> geometry and forces provided as result of <br /> the new OCBF. Please indicate connections <br /> checks such as the gusset plate interface to <br /> the existing beams and columns, Whitmore <br /> section checks and etc. <br /> 2200 6TH AVENUE, #601 WWW.PSM-ENGINEERS.COM PHONE 206-622-4580 <br /> SEATTLE WASHINGTON 98121 USA _ FAX 206-622-0422 <br />