高强螺栓施拧力计算 VIP专享VIP免费

大六角头高强螺栓施工扭矩计算一计算公式T＝1.05×K×P×dT：施工扭矩（N*m）K：螺栓扭矩系数P：施工预拉力(kn)，d：螺栓直径（m（1.05为考虑的误差系数，规范GB/T1228-1231-91上面没有考虑这个系数）表1：高强螺栓施工预拉力（KN）螺栓性能等级螺栓公称直径（mm）M12M16M20M(22)M24M27M308.8级457512015017022527510.9级60110170210250320390二高强螺栓施工扭矩值参考表序号螺栓规格等级施工预拉力KN扭矩系数范围初拧扭矩N*M终拧扭矩N*M备注1168.8750.110.157813218010.9110114193.62642208.81200.110.1515626436010.91702213745103228.81500.110.1521536349510.9210300508.26934248.81700.110.15265448.861210.92503906609005278.82250.110.15395668.3911.310.9320562950.412966308.82750.110.15536907.51237.510.939076112871755规范GB/T1228-1231-91