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断面3断面3a断面三断面四断面四备注H(mm)1000500700600700B(mm)300250300200300tw(mm)1612141013tf(mm)2520201424材料强度Q345Q345Q345Q345Q345fv(Mpa)180180180180180查表3.4.1-1，与腹板厚有关螺栓直径D0(mm)2424242424高强螺栓等级10.910.910.910.910.9预拉力P(kN)225225225225225查表7.2.2-2，与栓径有关M24-225,M22-190抗滑移系数μ0.50.50.50.50.5查表7.2.2-1，与钢号有关处理方法选择喷砂（丸）单剪/双剪22222梁腹板净截面可承受最大剪力设计值Vn(kN)2325.6844.561413.72875.161296.828单个螺栓可承受最大剪力设计值V192.375192.375192.375192.375192.3754结果需要的螺栓个数12.094.397.354.556.74剪力计算3据实填写据实填写一、输入数据型钢截面1高强螺栓参数2极限抗拉屈服强度强度最小值抗拉,压,弯抗剪端面承压钢材厚度fufyffvfcemmN/mm2N/mm2N/mm2N/mm2N/mm2116375235215125325216~40375225205120325340~60375215200115325460~100375205190110325516470345310180400616~35470325295170400735~50470295265155400850~100470275250145400对接焊缝极限抗拉强度最小值钢材厚度fufwcfwt12fwt3mmkN/cm2kN/cm2kN/cm2kN/cm211637.521.521.518.5216~4037.520.520.517.5340~6037.5202017460~10037.51919165164731.531.527616~3547303025.5735~5047272723850~10047252521螺栓序号螺栓等级螺栓钢号接触面形式162022241128.444.654.762.82222.134.742.548.83328.444.654.762.84418.929.736.541.95134.754.566.876.76225.239.648.655.87334.754.566.876.78422.134.742.548.89140.562.87791.110231.548.859.970.911340.562.87791.1Q235设计用钢材强度值强度设计值钢材序号构件钢号E50xxQ345Q345设计用焊缝强度值对接焊缝强度设计值抗压焊缝质量为1、2级及3级时抗拉、抗弯强度设计值焊缝序号焊条型号钢材钢号E43xxQ23510.9Q235焊接方法为：自动焊、半自动焊、手工焊。一个摩擦型高强度螺栓的抗剪承载力设计值表NbHv（单剪,单位:kN）高强度螺栓直径d(mm)8.8Q23516Mn1242741.951.360.813149.576.794.1111.41423655.868.48115349.576.794.1111.416431.548.859.970.910.9Q23516Mn注：(1).双剪螺栓的承载力设计值为单剪数值乘2.0.(2).16Mn.,16Mnq,15Mn,15Mnq钢号，螺栓抗剪承载力设计值相同。角焊缝强度设计值fwvfwfkN/cm2kN/cm212.516121611.516111618.52017.52015.52014.520273083101.364.678.883101.355.467.5101.5123.873.890101.5123.864.678.8117.5143.891.4111.8117.5143.8设计用焊缝强度值对接焊缝强度设计值抗剪焊接方法为：自动焊、半自动焊、手工焊。一个摩擦型高强度螺栓的抗剪承载力设计值表NbHv（单剪,单位:kN）高强度螺栓直径d(mm)78.395.93143.6175.7104.4127.8143.6175.791.4111.8注：(1).双剪螺栓的承载力设计值为单剪数值乘2.0.(2).16Mn.,16Mnq,15Mn,15Mnq钢号，螺栓抗剪承载力设计值相同。