Laserfiche WebLink
i <br />WIND DESIGN--reR IBC2009 1609 (aaseo oN ASCE7-OS) <br />;.5 aian(RPI <br />RooF RP:== 0:= <br />PITCM I? �e_L' <br />H = I G.3 <br />MEA� ROOF HEIGHT (FNDY. TD �� .— I I—S <br />FIALFW4Y UP ROOF SLOPE) ^�' <br />WALI hw.:= R <br />HEIGHT <br />y������;- $i BASIC WIND SPEE� FRQM FIGI:RE 1609. MPH <br />l <br />Gcpusurc:= I3� E%POSURE CATEGORY (FROM IBC2006 1609.L.3 allo ASCE 7-05 6.5.6.3) <br />I�� := IA IMPORTANCE FACTOR FROM TFBLE 6-I, FOR OCCUPANCY CATEGORY II (FROM T48LE I-D <br />IN REfERENCE TO ASCE 7-OS FIGURE 6-10 -- DETERMINATION OF E%TERNAL PRESSURE COEFFICIENT: <br />�OR CASE A, ROOF ANGLE IS TAKEN TO BE O(NOTE 2). FOR CASE B, ROOF ANGLE IS N0T A F4CTOR EITMER. FOR <br />ZERO ROOF ANGLE, ZONES 2� 3 ARE ON TME ROOF 6 NOT A fACTOR IN LATERAL LOADING: M4GNITUDES OF THE <br />COEFFICIENTS IN 20NE5 I 9 4 ARE COMBINED TO ACCOWT FOR PRESSURE ON ONE SIDE 8 VACUUM ON OTHER SIOE; THE <br />EDGE ZIXJE COEFFICIENTS ARE FACTORED INTO THE OVERGLL COEFFICIENT IN 4 1:9 R4T10. BEC4USE iME ROOF nNGLE IS <br />N�i COM1SIDERED. BOTH CASES ARE THE SAME. 50 THERE IS ONLY ONE FFCTOR. <br />9�1��� + �CI1 <br />t'��:=.-1+?9 le��:=.(i1+.43 GC�t:= <br />10 <br />[�C��i =p,7_' COMPOSITE EXTERNAL PRESSURE COEFFICIENT FRUM FIG. 6-10 FOR ENCLOSED BUILDINGS. <br />COMPOSITE INiERNAL PRESSURE COEFFICIENT FROM FIG. 6-S FOR ENCLOSED BUILDINGS -- MUST USE <br />GC�,:= -11.IS WORST CGSE OF NEGA7IVE OR POSITIVE V4WE OF CCEFFIF�ENT—NEGATIVE IS WORST CASE. <br />hi�;= p,7Q PER TABLE 6-3 <br />� ��pr — GCp� = 09 <br />�M . <br />h��i ;_ �,�) PER 6.SJ.1.5, NOi INCLUDED FOR B�OGS IN EXP. B UNOER 60FT TGLL <br />h�;_ �,p PER TABLE 6-L, NO REDUCTION 4LLOWEO UNL:SS USED WITH LOAD COMBINAiIONS <br />i <br />9i� := 111)02561y�'KhYKJ�VainJ ��u 4e = �'-�`� <br />P. = 9irl���r - ����) EaN. 6-16 <br />��i�i - i ME�N RCOF HEIGHT <br />wiNo �on� oN so=s <br />Direction A (wind on sidesl <br />��u�.� �= P.'�-hidg"hm <br />\' =(�;�7 WiND'.OAD ON SIDE <br />Direction B (wind on end) <br />VN.h:= (l��R�hIJc'hm <br />��` h=;�(�,� WIND LOAO qJ END <br />