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• • <br /> Everett Housing Authority <br /> Administrative Office Upgrades <br /> 03/24/20 <br /> Page 10 <br /> elevator loading into the existing structure. Calculations and details for these <br /> connections should be submitted for review. <br /> d. The structural calculations shall be performing using the appropriate load <br /> combinations including live and seismic loading per IBC Section 1605.2. In addition, <br /> documentation shall be submitted verifying the nominal loads have been increased <br /> for impact effects per IBC Section 1607.9.1. The application of the live load factors <br /> in the load combinations does not represent the impact increase. <br /> ANSWER: <br /> a. Please see the revised structural general notes for the design loads for <br /> the elevator. <br /> b. Please see details, 11/S40,02, 11/S50.01, and 12/550.02, for the rail <br /> details. Connection of the bracket to the rails and embeds is the <br /> responsibility of the elevator manufacturer, <br /> c. Please see the supplemental structural calculations and the revised <br /> details, 11/S40.02, 11/S50.01, and 12/550,02, for the connections of <br /> the rails to the structure. <br /> d. Please see the supplemental structural calculations for the loading at <br /> the elevator rails. <br /> 11.The Main Level Framing Plan on Sheet S21.01, and the Roof Framing and Elevator Roof <br /> Framing Plans on Sheet S21.02, show HSS8 columns in the elevator shaft. See IBC <br /> Section 107.2.1. The following comments should be addressed: <br /> a. The extent of the columns is not clear. The columns appear intended to extend to <br /> the underside of the roof, but also appear to extend to the elevator roof. Note that <br /> extending the columns to the elevator roof appears to place them outside the <br /> exterior walls. <br /> b. The column on the east side of the shaft appears intended to support the elevator <br /> guide rail on this side. However, Enlarged Elevator Plan 2/A40.01 appears to <br /> indicate the elevator equipment will prevent connections to this post. The design <br /> should be reviewed and revised as needed. <br /> c. The roof plans include the W10 elevator hoist beam. The elevation of the beam is <br /> not clear. The beam is schematically shown between the roof levels in Section <br /> 9/A40.01. The beam is connected to the HSS columns per Detail 7/S50.01. Note <br /> that the beams cannot connect to the columns if they do not extend above the main <br /> roof as discussed above. <br /> d. Details are not included for the connection of the posts to the roof framing. See <br /> additional comments below regarding the elevator design. <br /> ANSWER: <br /> a. Please note that the columns continue beyond the existing roof level, <br /> to support the hoist beam. Please see the additional detail 11/S50.01 <br /> for the rail connection at the roof <br /> b. Please note the revisions to the set regarding placement of rail <br /> supports Also note the additional notes regarding coordination with <br /> the elevator manufacturer regarding connection to the rail supports on <br /> details 11/540.02 and 11/S50.01. <br />