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Larson Englneering,Inc. SUBJECT: U.S. CUStOrt15 & SHEET NO. C-2 <br /> 5757 Phantom Onve,Suite 200 Border Protection PROJECT NO. 51090137.I;�0 <br /> � 'SL LouiS,MO 67042�2455 <br /> 314.731.4710 Paz: 314.7714712 PoRAnqe�es WA ev RV DATe 4/21/2009 <br /> Hw,v.larsonengccom <br /> � Larson SNOWLOADING jIBC20061 <br /> Ground Snow Load(Figure 1608.2) py:= 25psf <br /> Exposure Category: C, := 1.0 Partially ExPosed <br /> Thormal Factor(Ct) Ct,:= 1.0 <br /> Importanca Fa;tor I,= 1.0 Occupancy Cat II <br /> Pr:= oJ•Ca•�1�s Ps Pf =17.5•psf <br /> DcsignSnowLoad SL:= 1f�pq >ZOpsf,ma�p{,20psf•I.),mar.�pf,pylg)) <br /> SL=20•psf <br /> TRL:= max(RDL+ SL,RDL+ RIL) TRL=31•psf <br /> Llve Load Co�trols <br /> WIND LOADING�IBC 2006; <br /> Speed <br /> Baslc Wind Speed(Flg 1609): Speod:= t00mph �'- m h <br /> P <br /> Importanca Factor(Table 1604.5): (Category II? I„,= 1.0 <br /> Wind Exposuro Category � <br /> Exposure Coefiiclent(ASCE 7-02,Table 6-3XExposuro B) ICi,:= 1.03 <br /> Topographic Factor(ASCE 7-02,FIg.6•4) (Assume FlatTorrein)ICrt:= 1.0 <br /> Wlnd Directlonallty Factor (ASCE 7-02,Table 6•4) Yy:= 0.85 <br /> VolocityPressura 9:= 0.00256•Yy,•Krt•I(i•�•Iwpsf q =2241•psf <br /> (ASCE 7-02,c9.6•15) <br /> Gust Et`cc[Factor(ASCE 7-02,6.5.8.1) G:= 0.85 <br /> Internal Pi�:.sure Coofflclent GC.�i= -0.18 <br /> H W <br /> `y - 1.18 HlV1="h/L" L = 0.5% W/L="UB" <br /> EMornal Prossure CoeKiclents CP_,,,,: 0.8 CP_��:= -1.3 <br /> (ASCE 7-02,Flgure 6-6) . <br /> Cp Iw� -0.5 CP �:_ -2.1 <br /> Design�dlnd Pressures(e9.6-17) p:= q•GCP-q•�GC,��) <br /> P„w�= 9'�'�vww-9•(GCP�) PY.w=19.3•P.f <br /> Piw-= 9'�'�r-iw-q•�GCP,� Piw=-5.5�psf <br /> Proot�= 9'C''CP roof -q•�GCp�� Proof=-20J•psf <br /> Proo?ma��= m��q'G'CP-roof � 9'�C'�P��•Procf] Proo(mva=-28.8�PSf <br /> P�n �= 9'G•Ca on Pd, _-a0.01•psf <br />