51.1斜截面开裂前的应力分析 0 0 b 2 +47 2 22 M图 VE Vc +47 V图 2T C arctan (ae-1)A, d图r图 (c)5.1.1 斜截面开裂前的应力分析 0 0 I My  = I b VS 0 0  = 2 2 4 2 1 2     t p = + + 2 2 4 2 1 2     cp = − + ) 2 arctan( 2 1    = −