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SOUND STRUCTURAL SOMONS <br /> yip N al WeENGINEERS <br /> b. Please see page 13 of the revised calculation packages showing unit weights of <br /> each diaphragm and wall assembly used in the calculations <br /> c. Please see page 13 of the revised calculation packages showing unit weights of <br /> each diaphragm and wall assembly used in the calculations. The 15 psf partition <br /> weight has indeed been added per ASCE 7 Section 4.3.2. <br /> d. The longitudinal and transverse seismic weights have been recalculated in the <br /> revised calculations. The summation of the longitudinal seismic weights and <br /> transverse seismic weights are now equal at level 0 (ground level). The <br /> longitudinal and transverse weights differ because the weights of the shear walls <br /> are not contributing to the shear on the level above. <br /> e. The summed effective weights include all seismic weight of the structure, <br /> including the lower half of the wall weight between level 1 (main floor) and level <br /> 0 (lower floor at ground level). This portion of the load does not add load to the <br /> seismic force resisting system of the structure. The output has been revised to <br /> show the additional weight tributary to floor 0. <br /> 21.The proposed design uses the proposed diaphragms to transfer the new loads into <br /> localized collectors which pass the proposed loads directly to the shear walls. The <br /> existing diaphragm will not be loaded beyond the original design loads. Please see <br /> page 25 of the revised caclucation package for the diaphragm shear in the proposed <br /> diaphragms. <br /> 22. <br /> a. The existing diaphragms are not required to resist any additional loads from the <br /> original design as the added loads are drug back into the existing structure via <br /> drags in line with the existing shear walls. The existing diaphragm to shear wall <br /> connections are to be upgraded per the shear wall schedule on sheet S-1. <br /> b. The floor ledger connecting the diaphragm of the addition to the existing <br /> structure has been revised in details FL1/S-2 and FL2/S-2 of the revised drawing <br /> package. Please see pages 97-109 of the revised calculation package which <br /> includes the anchorage design including the seismic overstrength factor per ACI <br /> 318 Section 17.2.3.5.3 <br /> c. Please see pages 90 and 91 of the revised calculation package for the design of <br /> the collectors. <br /> d. Confirmed, a collector has been added at the main floor in this location. The new <br /> collector has been detailed in Detail CS3/S-2. <br /> 24113 56th Ave W - Mountlake Terrace,WA 98043 - Ph:425-778-1023 - Fax: 206-260-7490 (V)- '*\ <br />