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Combination 2 results: Envelop <br /> <br />φMn_Po <br /> <br />φMn_Ne <br /> φVn <br />4.65 0.0161 0 0.04 0 16.23 16.23 14.1 <br />7 Ok Ok 0 0 <br />8.35 0.001557 <br />5 <br />- <br />0.0065 <br />5 <br />0.06 0 16.23 16.23 14.1 <br />7 Ok Ok 0 0 <br />10.9 <br />5 0 -0.07 0 0 16.23 16.23 14.1 <br />7 Ok Ok 0 0 <br />10.9 <br />5 0 -0.07 0 0 16.23 16.23 14.1 <br />7 Ok Ok 0 0 <br /> <br />H =24 <br />h =22 <br />bf =12 <br />bw =12 <br />tf =5 <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-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 />Page 171 of 213