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• <br /> Mr. Nathan Crawford <br /> Plan Check Number: B1907-025, First Structural Review <br /> August 6, 2019 <br /> 8. Sheet 6 shows a custom steel bracket detail. See IBC Sections 107.2.1 and 2205.1, and AISC <br /> 360-10 Section M1. The following comments shall be addressed: <br /> a. The required sections for the steel framing are incomplete. The minimum wall thickness <br /> shall be specified. <br /> b. The steel bucket at the top of the bracket requires additional dimensions to specify the size <br /> and location of connection holes. <br /> c. The size of the fasteners (e.g.,, bolts and lag screws) shall be specified. <br /> d. The detail specifies 1/2"-diameter holes. It is presumed that nominal 1/2"bolts and lag <br /> screws are intended on the project. The holes shall be oversized 1/16"to accommodate the <br /> required connections. <br /> e. The size and type of the welds for the frame joints shall be specified. <br /> f. The height or slope of the 1x2 brace shall be specified. <br /> g. The bracket and fasteners shall be provided with weather-resistant coatings or constructed <br /> of a suitable material to prevent corrosion. See AISC 360-10 Section B3.13. Reactive <br /> materials shall not be used together (e.g., stainless and galvanized steel, etc.). <br /> 9. The connections for the deck and the canopy appear intended to be installed through the <br /> horizontal siding, which is not acceptable. The connections shall fasten directly to the structural <br /> framing. The exterior moisture barrier shall not be damaged or compromised. Additional <br /> details shall be provided clarifying the required construction. See IBC Section 107.2.1. <br /> 10.The project includes wood framing exposed to weather. The structural notes shall require all <br /> wood exposed to weather to be preservative-treated or naturally-durable wood. The note shall <br /> require the cut ends and surfaces (e.g., trimmed framing, stair cut-outs, drilled holes, etc.) of <br /> preservative-treated wood to be coated with a preservative treatment complying with AWPA U1. <br /> See IBC Sections 2304.12.1 and 2304.12.2.3. <br /> Foundation System: <br /> 11. Sheet 9 shows a typical footing detail including a post base and post-installed expansion <br /> anchor. Proprietary products shall be identified in the structural notes. The connection model <br /> numbers shall be specified. The components shall be provided with a coating or made from <br /> materials that are resistant to corrosion. See IBC Sections 107.2.1 and 2205.1, and AISC 360- <br /> 10 Section B3.13. <br /> 12.The foundation support for the stair stringers on Sheet 2 is not specified. A foundation element <br /> shall be specified. The stairs shall be anchored to the foundation to prevent movement. See <br /> IBC Sections 107.2.1 and 1603.1. <br /> Gravity System: <br /> 13. Sheet 2 shows plans and elevations for the proposed stairway on the west side of the building. <br /> The information is not sufficient to clearly indicate the required construction. See IBC Sections <br /> 107.2.1 and 1603.1. The following comments shall be addressed: <br /> a. The number and spacing of the platform joists and stringers are not clear. <br /> b. The upper support for the stringers is not clear. <br /> 0 3200 Cedar Street 0 425.257.8810 0 everetteps@everettwa.gov <br /> Everett,WA 98201 425.257.8857 fax everettwa.gov/permits <br /> Page 3 of 5 <br />