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PROJECT:Harmon St ADUs JOB NO.:A025.033 SUBJECT:LATERAL LOADS <br />DESIGN OF ENCLOSED SIMPLE DIAPHRAGM LOW-RISE BUILDINGS FOR LATERAL LOADS <br />Seismic Parameters (ASCE 7-16 Chapters 11, 12, & 22) <br />Site Class: D S. 11.4.2 N = 1 S. 12.8.2.1 <br />R = 6.5 T. 12.2-1 Ct =0.02 T. 12.8-2 Per Table 11.6-1: D <br />Ss =1.328 F. 22-1 hn (ft) =15 S. 12.8.2.1 Per Table 11.6-2: D <br />S1 =0.475 F. 22-2 x = 0.75 T. 12.8-2 SDC: D S. 11.6 <br />Fa =1 T. 11.4-1 Ta =0.15 E. 12.8-7 IE =1.00 T. 1.5-2 <br />Fv =1.825 T. 11.4-2 T0=0.13 S. 11.4.5 CSMAX=0.583 E. 12.8-3,4 <br />SMS =1.33 E. 11.4-1 TS=0.65 S. 11.4.5 CS=0.136 E. 12.8-2 <br />SM1 =0.87 E. 11.4-2 CU=1.40 T. 12.8-1 CSMIN=0.039 E. 12.8-5,6 <br />SDS =0.885 E. 11.4-3 TL=8 F. 22-12 CSCONTROL=0.136 S. 12.8.1.1 <br />SDI =0.578 E. 11.4-4 Sa=0.885 S. 11.4.5 CSCONTROL*.7=0.095 S. 2.4.1 <br />Seismic Analysis Req'd? Yes IBC 1613.1 <br />Perform Seismic Analysis? Yes <br />Wind Parameters (ASCE 7-16 Chapter 26) <br />Wind areas labeled C and D are used for calculating line loads on the following sheet. <br />Elevation (ft): 60 <br />Risk Category: II <br />Basic Wind Speed (mph): 95 <br />Exposure Category: C <br />Kzt:1.00 <br />Ke: 1.00 <br />BASIC <br />WIND ROOF <br />SPEED ANGLE LOAD <br />(mph) (degrees) CASE A B C D E F G H EOH GOH <br />0 to 5° 1 14.4 -7.4 9.5 -4.4 -17.2 -9.7 -12.0 -7.6 -24.1 -18.9 <br />10° 1 16.1 -6.7 10.7 -3.9 -17.2 -10.5 -12.0 -8.1 -24.1 -18.9 <br />15° 1 18.0 -6.0 12.0 -3.4 -17.2 -11.2 -12.0 -8.6 -24.1 -18.9 <br />95 20° 1 19.9 -5.2 13.2 -2.9 -17.2 -12.0 -12.0 -9.1 -24.1 -18.9 <br />25° 1 18.0 2.9 13.0 3.0 -8.0 -10.9 -5.7 -8.7 -14.9 -12.6 <br />2 -3.0 -5.9 -0.9 -3.7 <br />30° to 45° 1 16.1 11.0 12.7 8.7 1.2 -9.7 0.4 -8.4 -5.6 -6.5 <br />2 16.1 11.0 12.7 8.7 6.2 -4.9 5.4 -3.5 -5.6 -6.5 <br />Determination of SDC: <br />HORIZONTAL PRESSURES VERTICAL PRESSURES <br />Note: Wind load determined from pressures below will be multiplied by 0.6 (ASD load factor on wind loads) <br />MAIN WIND FORCE RESISTING SYSTEM - METHOD 2 FIGURE 28.6-1 <br />SIMPLIFIED DESIGN WIND PRESSURE, P s30 (psf) (Exposure B at h=30 feet) <br />OVERHANGS <br />ZONES <br />Page 14AllX ENG <br />DESIGN & ENGINEERING <br />AllX ENG <br />DESIGN & ENGINEERING