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PROJECT NO. <br />DATE: <br />b = 24 Ig =27648 in4 n = 8.73 <br />h =24 <br />d' = 3 Ec = <br />d =21 =3321 ksi Neutral Axis = 12 in. <br />f'c =3000 psi <br />fy =60 ksi Es =29000 ksi Itr = 30195 in4 <br />wc = 150 pcf <br />No. of Bars: Strirrup Size:fr =7.5*(f'c)1.5 Mcr = fr*I/y <br />Top 4 #3 411 psi 86 k-ft <br />Bottom 4 smax =10.5 in <br />Bar Size: c = 2.90 in.fs' = -2.92 ksi <br />Top #7 smax =5.25 in <br />Bottom #7 FMn =214.51 k-ft <br />As =2.4 in2 Mu (RISA)=145.43 k-ft <br />As' =2.4 in2 FVn =19.8 kip <br />Asmin Met?YES Vu (RISA)=14.57 kip OK <br />10 in. <br />A1 = 29.03 in2 F = 0.65 <br />FBn = 48.12 Kips <br />FBn x (d-a/2) x 2 <br />Mn =158.52 k-ft <br />fu = 65 ksi Shear:F = 0.65 Tension:F = 0.75 <br />ø =0.5 in. <br />FQnv =8.30 kip <br />4 <br />0 0 <br />2 <br />0.00 kips <br />Mn =0.00 k-ft <br />14.0 in. <br />fu = 65 ksi Shear:F = 0.65 Tension:F = 0.75 <br />ø =0.5 in. <br />FQnv =8.30 kip <br />4 <br />2 12 <br />2 <br />132.73 kips <br />Mn =58.07 k-ft <br />=216.59 k-ft <br />145.4285714 k-ft <216.59 k-ft OKTotal Moment Demand = <br />RETROFIT1 Grade Beam Checks and Concrete Bearing Check <br /># of Faces w/ Studs in Shear: <br />Total Stud Capacity = <br />Moment Capacity of Shear Studs on Flanges: n/2 x Col. Depth x Qnv <br />Total Moment Capacity = C x (d-a/2) + n x d/2 x Qnv + n x Col Depth x Qnv <br />Supplemental Shear Stud Anchors, Qn, @ Col. Flange <br />FQnv = 0.65*Asa*Fu <br /># of Studs in Vert. Column: <br /># of Studs in Horiz. Row: Total Number of Studs, n = <br />Total Stud Capacity = <br />Moment Capacity of Shear Studs in Web:n/2 x d/2 x Qnv <br />T/C Couple In OMF Column: <br />Column Depth: <br />FQnv = 0.65*Asa*Fu <br /># of Studs in Vert. Column: <br /># of Studs in Horiz. Row: Total Number of Studs, n = <br /># of Faces w/ Studs in Shear: <br />Bearing Capacity of Concrete, Bn: <br />Per ACI 318-14 Sec. 22.8 <br />Bn = (0.85*f'c*A1) <br />Moment Capacity of Concrete at Col. Face: <br />Supplemental Shear Stud Anchors, Qn, @ Col. Web <br />Flange Width = <br />1003 W BISHOP ST <br />1/17/2024 <br />Input Beam Parameters: <br />wc^1.5 * 33 * √f'c <br />Grade Beam T/C Capacity <br />Close Tie Region Spacing Per <br />ACI 318-11 21.5.3.2: <br />FMn = 0.9*As*fy*[d-(0.85c/2)]+As'*fs'*(0.85c/2-d') <br />Demand < Capacity <br />T/C Couple In Grade Beam: <br />Page 18 of 35 <br />1003 W Bishop St - <br />1011187895/29/2024