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� { <br /> Da[e: 2a-Marv08 <br /> � y 1OX30 SIGN: EVERETT, bVA DesiyneA by: No5 <br /> W <br /> n <br /> � ChxkeO Dy: <br /> pPage: <br /> ]ab� SF044 <br /> Gust EHect Factor <br /> B= 30 ft nwlzMtnl Dim iwrmal to wlnn e= 2J18 MatMmatiwl constant <br /> L= 25 ft Hmizmtal Dlm parrellel Io wIM F= 1,0 (Assu:ne�l) <br /> ��= 15 ft MeigM of maln mlumn B= 0.2Q Dampng Ratlo(assun�etl) <br /> ��= l0 ft Meiq�t o�sl9^ go= 3.e <br /> �= 20 R Mean raof Iie1gM or StmcNre�egM 9.' ��4 <br /> 12 ft 0.6 x n Exposure= C <br /> V= IDO moh Bask wIM speeJ <br /> nl= 0.1 Hz BWlding na:ual frepuenq <br /> TaEle 6-2:Terraln Ex osure Ccefficlents <br /> Ex a Z R a^ E^ c I R _ ft <br /> 8 ].0 I200 O.IJ29 0.89 0.25 0.95 030 RO OJJ? JO <br /> C 9.5 900 0.105? t00 0.15 0.65 0.10 500 O.Z00 IS <br /> D L.5 ]00 0.08]0 ]Ol 011 080 0.15 650 0.125 ] <br /> T�erefore: o= 95 a^=0.105 E^= 1.00 Z„ = 90� ft <br /> =0.15 p-=0.65 c=0.2G I= 50a R � <br /> =0200 Zm_= 15 ft <br /> To ca�cu�g Vz(Mean Iwur1Y wlnG sON-d) <br /> EQ.E-yp Va= 89.aa Ns <br /> To�[e fy fa[rors <br /> ry�: Re'. W.'. <br /> q= 1.6 q= OJ q= OR . <br /> Ea�6-t3 h= �.602 Re= 0.6]6 R�= 0.:63 <br /> To caiculate . <br /> Eq.6-) L.= OOBA R In[erg21 lergt�smle of NNulantt <br /> Ep.&1Z rv�= L935 ReJucetl fequency <br /> fp.E-il R�= 0.09t <br /> To fakula[e H(Rewnant ResO�se FaRor) <br /> Ep.6-10 R= 063t <br /> To Cdkulate.gp(Veak fac[or fw resonanl response) <br /> Fq.6-9 92= 1.530 <br /> Tofalculah .1 QntensltyotNroulaMeatneigntx) <br /> Ea�6-5 �,= 0131 <br /> To mkvla[e Q(Badqroun0 Rsponse) . <br /> Ep-6-6 Q= 0.925 <br /> To calcvlafe Gr(Gust eYect fatta) <br /> Ep.6-8 GI= 0.893 <br /> �� ro ' <br />