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Mr. Ryan Star <br /> Wolfe Plumbing <br /> Plan Check Number: B2008-027, First Building Review <br /> November 13, 2019 <br /> the design per the load combinations of Section 12.4.2.3 including vertical effect per Section <br /> 12.4.3.3 should be submitted for review. The calculations should include combined load ratios <br /> per AISC 360-10 Section H1. See IBC Sections 1613.1 and 2205.1. <br /> 9. The brace connections to the beams and columns, and the beam-column connection, should be <br /> designed for the amplified seismic load in the beam per AISC 341-10 Equation E1-1. See also <br /> Commentary Section E1-2 regarding the application of the OMF design criteria to knee brace <br /> systems. Calculations substantiating the connection design should be submitted for review. <br /> See IBC Sections 1613.1 and 2205.2.1.2, and ASCE 7-10 Section 14.1.2.2.2. <br /> 10.The OMF utilizes knee-braces. The beams and columns should be laterally-braced at the brace <br /> connections. It is noted that the columns typically include bracing in orthogonal directions, and <br /> the north-south beams may be restrained by the supported east-west beams; the provided <br /> restraint at these locations should be evaluated and additional restraint provided as needed. <br /> Restraints should be provided at other conditions. See IBC Section 2205.2.1.2, and AISC 341- <br /> 10 Commentary Section E1.2 and AISC 360-10 Appendix 6. <br /> 11.The proposed mezzanine is located in close proximity to the main building exterior wall and an <br /> existing two-story office space. Based on framing dimensions and specified distances to <br /> existing construction, the estimate seismic gap varies from 3 to 4.5 inches, including the <br /> existing stair providing access and egress for both the mezzanine and the existing office space. <br /> Calculations substantiating the seismic gaps should be provided for review. See IBC Sections <br /> 1613.1 and ASCE 7-10 Section 12.12.3. <br /> This review has been performed for general compliance with the building codes as adopted and <br /> amended by the state of Washington and the city of Everett. Corrections and comments made <br /> during the review process do not relieve the project from compliance with code and permit <br /> requirements. The designers-of-record are responsible for a complete design in accordance with <br /> the laws of the state of Washington. <br /> If you have any questions or require additional clarification, please contact us. <br /> Respectfully, <br /> Drew Martin, P.E., S.E. <br /> Associate Engineer/ Commercial Plans Examiner <br /> (425)257-8813 <br /> dmartin@everettwa.gov <br /> S:\BMarti n\2020\B2008-027_R1.docx <br /> � 3200 Cedar Street 0 425.257.8810 O everetteps@everettwa.gov <br /> . Everett,WA 98201 425.257.8857 fax everettwa.gov/permits <br /> Page 4 of 4 <br />