拉力 F=80kN 的螺栓连接如图所示。已知 =80mm,-|||-=10mm =22mm, 螺栓的许用切应力 [ F] =130MPa,-|||-钢板的许川挤压应力 [ (sigma )_({log )_(m)] }=300MPa, 许用拉应力-|||-(rho )_(0)=170MPa 试校核接头的强度。-|||-E "-|||-E-|||-上-|||-!