E、剪物(Axial Tension&Compression,shear) 四、强度条件的应用(Application of strength conditions) 1、校核强度 (Check the intensity) x≤[] Os≤[os] 2、设计截面(Determine the allowable dimension) F 42 A2[o] 3、求许可载荷(Determine the allowable load) F≤]A F≤[OpsJAps(Axial Tension & Compression，shear) 四、强度条件的应用(Application of strength conditions)       bs bs  F A     bs   bs FS   A 1、校核强度 (Check the intensity) 2、设计截面 (Determine the allowable dimension) F   bsAbs   FS A  3、求许可载荷 (Determine the allowable load)