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• 0 <br /> Pm' vil <br /> I .L. GROSS <br /> It <br /> 11 STRUCTURAL ENGINEERS <br /> PROJECT MEMORANDUM <br /> '0; <br /> T. Spp�Date: July 29, 2021 WASJ <br /> �w <br /> To: Jonathan Brandt , ‘ ...i � <br /> JB Architecture rr w1 <br /> Seattle,WA �o�� �12AL1 c <br /> 4'SIONAL"04 <br /> From: Mark Speidel, P.E., S.E. <br /> I.L. Gross Structural Engineers, LLC <br /> Re: Brickley Residence Addition Corrections (B2105-038) <br /> Jonathan, <br /> I am writing this letter in response to the structural questions posed by Drew Marin <br /> of the City of Everett in his review of the Brickley Residence located at 4815 Baker <br /> Drive dated June 23, 2021. <br /> 1. The proposed design removes the shear wall on the south side of the <br /> building. The building does not appear to have adequate braced wall <br /> panels complying with the prescriptive limits of the IRC. In addition, it is <br /> not clear that the building is provided with drag struts or diaphragm <br /> construction to transfer loads from the south half of the building to other <br /> walls. Structural calculations substantiating the lateral design should be <br /> submitted for review. Revisions to the design may be required. See IRC <br /> Section R301.1.3, and IBC Sections 1603.1, 1604.1, and 1604.4. <br /> Per the attached calculations, the remaining wall at between the Storage <br /> room and Bathroom has been upgraded to adequately resist the shear <br /> loads that were previously resisted by the existing wall at the kitchen. <br /> Details have been added to sheet S4.1 to show the required upgrade <br /> connections and framing. <br /> RECEIVED <br /> AUG 272021 <br /> ,-4.€, ,,... '. <br /> CITY OF EVERETT <br /> Mark Speidel, P.E., S.E. Permit Services <br /> I.L. Gross Structural Engineers, LLC <br /> Cc:Brickely file Memo By: Mark Speidel <br /> 23914 56th Ave West Suite 200 Mountlake Terrace,WA (206)623-0769 or(425)640-7333 <br />