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PROJECT: PAGE <br />CLIENT: DESIGN BY <br />JOB NO-: DATF 29 Lw, .-2(111 RFVIFW RY <br />INPUT DATA <br />Exposure Category (8, C or Dy <br />Importance factor, pg 73, ("7, to or tis) <br />1 - <br />tis <br />Category III or IV <br />Basic wind speed (3 sec. gust wind) <br />V = <br />': 85 .::: <br />mph <br />Topographic factor (sec.6.5.72• v® 26 & 4s) <br />Flat <br />Height of top <br />h = <br />6 <br />it <br />Vertical dimension (for wall, s = h) <br />s <br />ft. <br />Horizontal dimension <br />B <br />DESIGN SUMMARY <br />Max horizontal wind pressure <br />Max total horizontal face at centroid of base <br />ANALYSIS <br />Velocity pressure <br />p = 17 psf <br />F = 1.62 kips <br />cl, = 0.00256 Kr, K, Ka V' I = 17.18 psf <br />where: qh = velocity pressure at mead roof height, h. (Eq. 6-15, page 27) <br />Kh = velocity pressure exposure coefficient evaluated at height, h, (Tab. 63, Case t.pg 79) 0.85 <br />Ka = wind directionality facto. (Tab. 6-4, for tank, page 80) = 0.95 <br />h = height of top = 6.00 it <br />D= diameter of tank = 5.32 ft <br />Wind Force Casa A: neeu(rtant fore;s ti ZMh the geometric center (Sec. 6.5.14 &Fig. 6-20) <br />p a qh G Cr = = 16.58 psf <br />F = p As = 1.62 kips <br />where: G = gust effect facto. (Sec. 6.5.8, page 26). = 0.85 <br />Ct = net force coefficient (Fig. 6-21, page 74) = 1.13 <br />As= = 97.6 f? <br />D"(gh)'0.: = 22.05 <br />h1D = 1.13 <br />