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• M <br /> 8. Some of the stairways are connected to multiple buildings and are not provided with seismic joints as required <br /> by IBC Section 1613.1 and ASCE 7-16 Chapter 12. These egress paths may be damaged during an earthquake <br /> and prevent use by occupants to safely exit the buildings. Please comment. <br /> 9. The stairways use wood knee braces per B2/A813 with "toe-nail"-type connections between the braces and <br /> main framing. These are expected to provide a lower-capacity and less-resistant lateral bracing that more <br /> traditional bracing such as that used for the Building 7 ramps per Detail B4/A4.11. The following should be <br /> addressed: <br /> a. Please comment on the code requires for new construction and the allowed use of the proposed wood <br /> knee braces. <br /> b. Clarify if the braces are provided at all levels of the egress structures, including at the roof level. <br /> 10. The projects include retaining the roofs over the stairways and strengthening them with supplemental <br /> framing. The comments below are examples for specific buildings that may apply to other buildings;the <br /> comments should not be considered as limited to the building cited. The following comments should be <br /> addressed: <br /> a. Section C2/A4.01 for Building 1 shows (2)2x6 framing at 24 inches. It is not clear if this framing is <br /> fastened together, and also sistered to existing framing. Fasteners between the 2x6s, and also to the <br /> existing framing if intended,should be specified. <br /> b. Section C2/A4.01 for Building 1 references Detail B3/A8.13 for connection of the 2x6s at the beams. The <br /> detail only shows a Simpson H2.5A for framing coming from the right. It is not clear if the framing on <br /> the left also requires ties, nor if the far ends of the framing not shown in the detail should similarly be <br /> provided with ties. <br /> c. Section C2/A4.02 for Building 1 includes a center section that is not shaded, but does not indicate <br /> supplemental framing. Confirm this roof does not require modification. <br /> Please let me know if you have questions. <br /> Drew Martin, P.E.,S.E. <br /> LiAssociate Engineer—Commercial Plans Examiner I Permit Services <br /> 425.257.8810 13200 Cedar Street, 2' Floor, Everett,WA 98201 <br /> EVERETT Phone Hours: M/W/T: 8 am -12 pm & 1 pm—3 pm;Tu: 1:00pm-3:OOpm <br /> everettwa.gov/permits I Facebook I Twitter <br /> Note:Emails and attachments sent to and from the City of Everett are public records and may be subject to disclosure pursuant to the Public <br /> Records Act. <br /> 2I <br />