1502 HEWITT AVE 2019-03-27 - Laserfiche WebLink

Mr. Miles Walker BNH Architects, P.S. Plan Check Number: B1801-036, First Review February 23, 2018 16.The elevator shaft appears to require headers for the door openings at all levels. Plans 2/AF1.1, 1/AF1.1, and 2/AF1.1 should be revised to include headers. Calculations substantiating the design of the headers should be submitted for review. See IBC Sections 1603.1, 1604.1, and 2304.3.2. 17.The design appears to require jamb studs at multiple locations to support beams. Locations include, but are not limited to, the elevator headers and the GL 3-1/8 in Plan 1/AF1.1. A detail should be added to the drawings. See IBC Section 1603.1. 18. Plan 1/AF1.1 shows new GL5-1/8x12 headers that appear vertically-aligned under the existing floor sheathing to support the new 2x12 joists with face-mounted connections. It appears that similar connections will be required for the existing joists on the opposite face. The structural design should be reviewed and revised as needed. See IBC Section 1603.1. 19. Details and calculations should be provided for multiple framing connections to substantiated their design. See IBC Section 107.2.1 and 1604.1. Connections requiring additional documentation include, but are not limited to, the following: a. Plan 1/AF1.1: GL5-1/8x12 to wall framing and existing post. b. Plan 1/AF1.1: GL5-1/8x16-1/2 to existing exterior and interior walls. c. Plan 2/AF1.1: GL5-1/8x16-1/2 to existing exterior wall and existing beams. 20. Detail 5/AF1.0 shows details for the connection of the elevation shaft to the existing roof framing. See IBC Sections 107.2.1 and 1603.1. The following comments should be addressed: a. The detail appears to indicate the existing joists are oriented in the north-south direction. However, based on the second-floor framing, it appears likely that the joists span east- west. The orientation should be verified and the connections on the north and south walls revised as needed. b. Blocking appears to be provided between the existing joists to provide continuity with the roof diaphragm. Nailing requirements should be provided. In addition, it is not clear how the roof nailing will be performed through the existing roofing system; this should be clarified. c. The existing detail appears to generally represent conditions on the east and west wall, sans the hoist beam and post. The detail should be retained and revised as appropriate, and references added in Plan 2/AF1.0. d. The detail appears to require SDS screws for the full height of the post in addition to the six screws installed at the top. The note should be revised for clarity. 21.The design appears to have walls that cantilever from the floor system in multiple locations, including but not limited to the first story stairway, mezzanine lobby, and second story opening for the stairway. Details for the walls should be added to the drawings. Calculations substantiating that the walls satisfy the loading criteria of IBC Sections 1607.8.1 and 1607.8.1.1 should be submitted for review. See IBC Sections 1603.1 and 1604.1. 22.The interaction of the east elevator shaft wall and the existing second floor framing in Plan 1/AF1.1 does not appear consistent with the west wall. A detail for the wall-to-floor connection should be included in the drawings. Calculations substantiating the connection should be submitted for review as needed. See IBC Section 107.2.1 and 1604.1. Pae5of6 CITY OF EVERETT • 3200 Cedar Street • Everett, WA 98201 • (425) 257-8810 • Fax(425) 257-8857