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One-Story Shear Wall Grade Beam Design (page 2) <br />Reinforcing Check <br />Top Longitudinal Bars USE 12.0 W X 24.0 D GRD BM <br />From Load Cases 1 & 2 :W/2-#5 TOP & 2-#5 BOT <br />-Mu max = 32 in-k ==> -As req = 0.03 in^2 < 200/Fy = 0.80 in^2 <br />-As req times 1.33 = 0.04 in^2 <br />-As req < 200/Fy : Therefore Ductility requirements indicated above need to be checked. <br />From Load Case 3 : <br />-Mu max = 32 in-k (same as Load Cases 1 & 2) <br />From Load Cases 1 & 2 : -As req = 0.04 in^2 <---CONTROLS <br />From Load Case 3 : -As req = 0.03 in^2 <br />With 200/Fy : -As req = 0.80 in^2 <br />Note : Less than 200/Fy Reinforcing can be used since Grade Beam <br /> will remain elastic under Maximum Anticipated Forces. <br />With: <br />TOP : -As = 0.62 in^2 > 0.04 in^2 øMn = 649 in-k <br />Bottom Longitudinal Bars <br />From Load Cases 1 & 2 : <br />+Mu max = 71 in-k ==> +As req = 0.07 in^2 < 200/Fy = 0.80 in^2 <br />+As req times 1.33 = 0.09 in^2 <br />+As req < 200/Fy : Therefore Ductility requirements indicated above need to be checked. <br />From Load Case 3 : <br />+Mu max = 346 in-k ==> +As req = 0.33 in^2 <br />From Load Cases 1 & 2 : +As req = 0.09 in^2 <br />From Load Case 3 : +As req = 0.33 in^2 <---CONTROLS <br />With 200/Fy : +As req = 0.80 in^2 <br />Note : Less than 200/Fy Reinforcing can be used since Grade Beam <br /> will remain elastic under Maximum Anticipated Forces. <br />With: <br />BOT : +As = 0.62 in^2 > 0.33 in^2 øMn = 649 in-k <br />Shear <br />Vu max = 1 k <br />øVc/2 = 11 k > Vu <br />Stirrups Not Required <br />(2) #5 <br />(2) #5 <br />1927 & 1929 S <br />Hickory St2/12/2025