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1 0 <br />- <br />1.422 <br />6 <br />0.72 0 24.2 24.2 21.1 <br />2 Ok Ok 0.07 0.03 <br />1.9 <br />5 0 -0.1 0 0 24.2 24.2 21.1 <br />2 Ok Ok 0 0 <br /> <br />H =24 <br />h =22 <br />bf =24 <br />bw =24 <br />tf =10 <br />Yt = (h✕bw✕h/2+Max(0,(bf-bw)✕tf✕tf/2))/(h✕bw+Max(0,(bf-bw)✕tf))= 11 in <br />Yb = h-Yt11 in <br />I = bw✕h✕h✕h/12+h✕bw✕(h/2-Yt)✕(h/2-Yt)+Max(0,(bf-bw))✕tf✕tf✕tf/12+Max(0,(bf- <br />bw))✕tf✕(tf/2-Yt)✕(tf/2-Yt)= 21296 in4 <br />St = I/Yt= 1936 in3 <br />Sb = I/Yb= 1936 in3 <br />fr = 5√fc= 250 psi <br />φMn_Pos=0.6✕(Min(St✕0.85✕f'c, Sb✕fr)/12000) <br />φMn_Neg=0.6✕(Min(St✕fr,Sb✕0.85✕f'c)/12000) <br />φVn=0.6 * (4/3*√fc*bw*h/1000) <br />Page 266 of 290