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B- Level/Brenneman Bul Ad Design <br />V. = 12700 lb OV, = 0.85(39200) = 33300 lb <br />33300) 2(12700) <br />V = A = (1.71)60000 = 102600 lb <br />Limited to V <— 8 gb,,,d = 8,5 = 156000 lb <br />Total shear strength V„ = K + V, = 39300 + 102600 = 141900 lb <br />All required shear reinforcement is provided by tensile plus shrinkage and temperature <br />reinforcement. No shear reinforcement is required perpendicular to axis of member, i.e. <br />stirrups or bars bent -up at ribside, because factored shear force (V.) does not exceed one- <br />half the shear strength (OV (ACI 318R, Sec 11.5.5.1,Sec 11.5.6.2, Sec 11.5.6.8,) <br />FS — V „ — 141900 = 11.17 <br />V. 12700 <br />Page 7 February 21, 1994 <br />Check for adequacy of shrinkage and temperature reinforcement of #6 bars on 12 -in centers <br />Ratio of area of shrinkage and temperature reinforcement at upstream face to gross concrete <br />area (p) of upstream half of bulkhead slab must equal or exceed 0.0018 [ACI 318R -92, <br />Sec 7.12.2.1(b)] for Grade 60 deformed bars. <br />#6 bars on 12 -in centers provide steel area of 0.44 1ft2 <br />A$ — 0.44 — 0.0020) 0.0018 <br />b [L(12)] 12 3(12) <br />"" 2 2 <br />John F. Abel, Jr. <br />Colorado P.E. 5642 <br />.. acceptable <br />