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Pitzer 8 Assoaates 07-178 2SL IBC ver6.4.zmcd 41132007 <br />0 <br />3.0 Wind Analysis (cost.) <br />Controlling Load Combination for Wind Loads <br />D+L+(n:W) £grmnon 16-N /2741 <br />Load Duration Factor. Co, for Wind Loads %DSSecnr,n:.3.7(9J <br />CD:- 1.6 <br />Diaphragm Sail Areas <br />Roof Diaphragm: <br />Front/Rear Direction <br />Side/Side Direction <br />(Longitudinal) <br />(Transverse) <br />Horizontal Vertical <br />Horizontal Vertical <br />Afr 32-ft2 Efr48 ft2 <br />Asr := 22 ft2 Esr:= <br />132 ft2 <br />efr := 37 ft2 Ffr 48 ft2 <br />53ft2 <br />132 <br />Cfrr= 288 ft2 Gfr:= 304 ft2 <br />Bsr:= Far := <br />28 <br />ft2 <br />220 <br />Dfr:= 39 ft2 1ih:= 304 h2 <br />Csr ft2 Gsr <br />Dsr 56.1112 <br />ft2 <br />220•ft2 <br />:= Hsr:= <br />Lower Floor Diaphragm: <br />Front/Rear Direction <br />Side/Side Direction <br />Horizontal <br />Horizontal <br />Afz 54 ft2 <br />As2 := 54-ft2 <br />Bf2 O ft2 <br />O <br />324-ft2 <br />Bs2:= ft2 <br />cf2:= <br />Cs2:= 72-ft2 <br />OR := O ft2 <br />Ds2 := O1? <br />4.0 Wind Shear and Uplift Forces <br />Shear Forces: <br />Front/Back Direction Left/Right Direction <br />(Longitudinal) (Transverse) <br />Roof Diapr.ragm Vcfr = 51481b Roof Diaphragm Vr.ss = 20671b <br />Floor Diaphragm VILfr=53911b Floor Diaphragm Vlf.ss=1638lb <br />Total Base Shear VTA=10539fb Total Base Shear <br />;3705n <br />Uplift Forces: <br />Total Uplift Ur.fr1 - 640 Ito Total Uplift Urns • 3l' <br />Opposing Dead Load <br />UDLL - 7040 lb Opposing Dead Load --- <br />i -- 62001 <br />2SL Version 6.4 Page 4 <br />