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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-bw))✕tf✕(tf/2- <br />Yt)✕(tf/2-Yt)= 10648 in4 <br />St = I/Yt= 968 in3 <br />Sb = I/Yb= 968 in3 <br />fr = 5√fc= 335.41 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 189 of 213