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410 <br /> • Plan Check Number B1906-031 <br /> 2721 Wetmore Avenue <br /> Response to concrete comments from Second Building Review, October 18, 2019 <br /> Foundation System: <br /> Item 12 <br /> RE the supplemental structural calculations which confirm footing to wall dowels including eccentric <br /> footings at shoring. <br /> Item 13 <br /> 13a and 13b. <br /> RE the supplemental structural calculations for confirmation of wall reinforcement at perimeter walls <br /> including all surcharges including traffic(equivalent to added 2 foot of soil pressure east and west)and <br /> surcharge pressure diagrams at adjacent buildings(north and south) <br /> 13c to 13f. Perimeter wall reinforcement calculations with restrained pressures including 2 foot <br /> equivalent surcharge pressures and seismic was previously submitted. RE supplemental calculations <br /> including surcharge pressures from adjacent buildings and seismic as noted in response to Item 2. <br /> Structural/Gravity System: <br /> Item 14 <br /> RE response to Item 7 regarding column detail where rotating. All column loading is taken from ETABS <br /> analysis and columns verified in in the supplemental calculations considering strong and weak axis <br /> directions. <br /> Item 15 <br /> Drawing S6.01 has been revised and details not specific to this project deleted. <br /> Item 18 <br /> 18a to 18d. The response to all balcony items is forthcoming in a separate response and submittal. <br /> Please note that the reviewer appears to have confused tributary area calculation with rod spacing. <br /> Item 19 <br /> 19a to 19c. RE supplemental structural calculations for Level P1 a Concept analysis for the design of <br /> this area. (Section 8 of the calculations) <br /> 19d. The design of the conventionally reinforced slab is included in the concept analysis. An additional <br /> beam elevation is added in 2/S3.00. The columns on Grid 5 have been moved to Grid 4.9 so that the <br /> beam now rests directly on the columns. <br /> 19e to 19g. Stair landing slabs per previously submitted PT slab design are now included in the floor PT <br /> plans and reinforcing plans. Confirming distributed PT tendons continue to run through the stair <br /> landings. <br /> Item 23 <br /> 23a to 23c. The plans and details have been revised to reflect the slab steps. RE architectural plans for <br /> all dimensions to slab steps,which are best to shown in one location. <br /> Items 24 <br /> 24a to 24f. RE revised plans, with beam and partial plan call-outs updated. RE Supplemental structural <br /> calculations confirming beam reinforcement. Where beams continue through steps and/or slopes,the <br /> beam depths vary and are clarified in elevation and sections on Sheets S3.00 and S4.01. Where <br /> reinforcement is noted with an asterisk on the reinforcement plans, the top reinforcement is held down <br /> and continuous at slab steps. <br /> Page 1.-.37 <br />