2828 COLBY AVE 2020-06-16 - Laserfiche WebLink

6. The enclosure for the new east stairway does not continue to the underside of the roof sheathing but stops at the floor/ceiling assembly of the fourth floor. The assembly should show as minimum one-hour fire-rated construction. Section 1023.2 7. The fire-barriers of the stair enclosure and elevator shaft should be shown to continue through the floor/ceiling assemblies (sheet rock and/or solid blocking). Section 707.5. 8. The architectural plans specify buildings sections C/A3.1 and D/A3.1 on Sheets A0.1 through A1.2 between Grids A' and A.8'. However, the building sections appear to be provided on Sheets A3.2 and A3.3, respectively. Please verify. See IEBC Section 106.2.1. Egress 1. A two-way communication system should be provided at the landings serving the new elevator. Section 1009.8 2. Both handrails at the bottom of the new east stair shown in Detail 1/A6.1 should be continue a minimum of 12" past the bottom riser. Section 1014.6 3. All doors into the new east stair enclosure should be shown as minimum one-hour listed assemblies. Table 716.5 4. The closet that opens into the new east stair on the third floor is not a normally occupied space and should be removed. Section 1023.4 Accessibility 1. The drain and hot water supply for the accessible sink's/lay's should be shown guarded or insulated to protect users. ANSI Section 606.6 2. Detail 3A/A6.4 shows a grab bar that will be attached to a hanging privacy partition. Details/calculations should be provided that show that the overall assembly will support the required 250# implied load. ANSI Section 609.8 Structural 1. The Second Floor framing between Grids A' and A.8' are supported by steel beams on Grid A.8'. The finished floor surface has a 1'-10.25" step at Grid 2 per Sections B/A3.1 and C/A3.2. This step does not appear to be included in Detail 2/S1.2. The detail should be reviewed and revised as needed. See IEBC Section 106.2.1. 2. The gravity system appears to include multiple load-bearing walls that do not appear in the structural plans. In addition, some walls that appear in the details do not appear continuous to the foundation. Drawings should be reviewed to show the required walls. Where required, the walls or floor framing should be revised to provide a well-defined load path. See IEBC Section 106.2.1 and IBC Section 1604.4. The following conditions should be addressed: a. Grids 1.4'and 1.8'for the elevator shaft from the foundation to the roof. b. Grid 3.1 from the foundation to the Fourth Floor. CITY OF EVERETT • 3200 Cedar Street • Everett,WA 98201 • (425)257-8813 • Page 2 l a