2701 12TH ST 2020-05-06 - Laserfiche WebLink

Mr. Randy Heltne Everett Housing Authority Plan Check Number: B1807-032, First Review September 14, 2018 structures should be submitted for review. Note that this shall be in addition to the design requirements for the lateral force resisting systems of the existing structure and the addition. See IBC Section 1613.1 and ASCE 7-10 Section 12.12.3. 25.The construction drawings do not include requirements for the structural diaphragms. The construction of the diaphragms shall be specified, including but not limited to sheathing grade and thickness, edge and field nailing, and blocking requirements. See IBC Section 2306.1 and AWC SDPWS-15 Section 4.2 26. Section B-B/A-6 provides a detail for the floor construction at the new steel beam. The detail does not appear to represent the likely construction at this location. Most notably, the sheathing will consist of existing and new sheathing connecting from the west and east sides, respectively. The bolt heads should recess into the nailer to avoid performance impacts to the diaphragm. The detail should be reviewed and revised as needed. See IBC Section 107.2.1. 27.The construction drawings to not provide detailed to transfer loads from the roof diaphragm to the shear walls, and shear loads from the second story shear walls and floor to the first story shear walls. Details providing a complete load path interconnecting the elements of the lateral force resisting system shall be submitted for review. See IBC Sections 1604.1, 1604.4, and 2306.1, and AWC SDPWS-15 Section 4.1.1. 28. Sheets A-6 and A-7 indicate that a prefabricated roof truss may align with the existing east wall below and provide a load path between the roof diaphragm and wall line. Design loads for the trusses should be specified in the structural design criteria. If the truss is not part of the lateral load path, tributary roof diaphragm loads shall not be directly applied to this wall line. See IBC Sections 107.2.1, 1603.1.8, and 1604.4, and ASCE 7-10 Section 1.4. 29.The wood shear walls do not appear to include holdowns at the ends to provide overturning resistance. The sill plate anchors specified in the drawings do not qualify as holdowns. Holdowns shall be provided connecting the boundary elements (i.e., studs at the wall ends) across floor framing and to the foundation. Calculations substantiating the design of the holdowns and boundary elements should be submitted for review. See IBC Sections 1604.1, 1604.8.1, 1604.10, 2304.10.6, and 2306.1, and NDS-15 SDPWS Sections 3.4, 4.1.4, and 4.3.6.4.2. See also IBC Section 1901.2, and ACI 318-14 Sections 17.2.3.4.3 and 17.2.3.3. Miscellaneous: 30.The project includes a new canopy on the west side of the building. See IBC Sections 107.2.1, 1603.1, and 1604.1. The following comments shall be addressed: a. The construction of the canopy is not specified and cannot be reviewed.. The canopy framing shall be shown on Sheet A-7. Connections between the canopy framing members, to the existing structure, and to the foundations shall specified in the drawings. b. Calculations substantiating the framing and connections shall be submitted for review. c. Reinforcement requirements shall be specified for the foundations shown in foundation plan on Sheet A-3. See IBC Section 19001.5 Item 3. 'age 10 of 11 CITY OF EVERETT • 3200 Cedar Street • Everett,WA 98201 • (425) 257-8810 • Fax(425) 257-::