普通及高强螺栓承载力计算 VIP免费

螺栓ftbfvb承压板承钢号等级N/mm2N/mm2fcbN/mm2Q235Q345Q420C级4.6、4.8170140C级305385425A、B5.6210199薄壁型钢290370级8.8400320A、B级405510560一个C直径毛截面有效截面钢号承压承载力设当承压板厚受拉螺杆单剪mmmm2mm25678101214161820Ntb(kN)Nvb(kN)12113.180.49Q23518.321.9625.6229.2836.643.9251.2458.5665.8873.214.3315.83Q34523.127.7232.3436.9646.255.4464.6873.9283.1692.414153.9115.4Q23521.3525.6229.8934.1642.751.2459.7868.3276.8685.419.6221.55Q34526.9532.3437.7343.1253.964.6875.4686.2497.02107.816201.1156.7Q23524.429.2834.1639.0448.858.5668.3278.0887.8497.626.6328.15Q34530.836.9643.1249.2861.673.9286.2498.56110.9123.218254.5204.2Q23527.4532.9438.4343.9254.965.8876.8687.8498.82109.832.7235.63Q34534.6541.5848.5155.4469.383.1697.02110.9124.7138.620314.2244.8Q23530.536.642.748.86173.285.497.6109.812241.6243.98Q34538.546.253.961.67792.4107.8123.2138.615422380.1303.4Q23533.5540.2646.9753.6867.180.5293.94107.4120.8134.251.5853.22Q34542.3550.8259.2967.7684.7101.64118.6135.5152.5169.424452.4352.5Q23536.643.9251.2458.5673.287.84102.5117.1131.8146.459.9363.33Q34546.255.4464.6873.9292.4110.88129.4147.8166.3184.827572.6459.4Q23541.17549.4157.6565.8882.3598.82115.3131.8148.2164.778.180.16Q34551.97562.3772.7783.16104124.74145.5166.3187.1207.930706.9560.6Q23545.7554.964.0573.291.5109.8128.1146.4164.718395.398.96Q34557.7569.380.8592.4115.5138.6161.7184.8207.9231螺栓ftbfvb承压板fcb等级N/mm2N/mm2钢号N/mm28.8400250Q23547010.9500310Q345590一个8.8S10.9S直径毛截面有效截面钢号承压承载力设当承压板受拉螺杆单剪受拉螺杆单剪mmmm2mm2678101214161820Ntb(kN)Nvb(kN)Ntb(kN)Nvb(kN)16201.1156.7Q23545.1252.6460.1675.290.24105.28120.3135.4150.462.6750.2778.3362.33Q34556.6466.0875.5294.4113.3132.16151169.9188.820314.2244.8Q23556.465.875.294112.8131.6150.4169.218897.9278.54122.497.39Q34570.882.694.4118141.6165.2188.8212.423622380.1303.4Q23562.0472.3882.72103.4124.1144.76165.4186.1206.8121.495.03151.7117.8Q34577.8890.86103.8129.8155.8181.72207.7233.6259.624452.4352.5Q23567.6878.9690.24112.8135.4157.92180.5203225.6141113.1176.3140.2Q34584.9699.12113.3141.6169.9198.24226.6254.9283.227572.6459.4Q23576.1488.83101.5126.9152.3177.66203228.4253.8183.8143.1229.7177.5Q34595.58111.51127.4159.3191.2223.02254.9286.7318.630706.9560.6Q23584.698.7112.8141169.2197.4225.6253.8282224.2176.7280.3219.1Q345106.2123.9141.6177212.4247.8283.2318.6354高强螺栓预拉力P(kN)接触面处理方法Q235Q345Q420等级M16M20M22M24M27M30喷砂、或喷砂后生赤锈0.450.50.58.880125150175230280喷砂后涂无机富锌漆0.350.40.410.9100155190225290355钢丝刷除锈或0.30.350.4一个螺栓钢材单剪承载力设双剪承载等级钢号μM16M20M22M24M27M301620222427300.4532.450.62560.7570.8893.15113.464.8101.3121.5141.8186.3226.88.8Q2350.3525.239.37547.2555.1372.4588.250.478.7594.5110.3144.9176.40.321.633.7540.547.2562.175.643.267.58194.5124.2151.20.53656.2567.578.75103.512672112.5135157.5207252Q3450.428.845546382.8100.857.690108126165.6201.60.3525.239.37547.2555.1372.4588.250.478.7594.5110.3144.9176.4Q4200.53656.2567.578.75103.512672112.5135157.52072520.428.845546382.8100.857.690108126165.6201.60.4540.562.77576.9591.13117.5143.7881125.6153.9182.3234.9287.610.9Q2350.3531.548.82559.8570.8891.35111.836397.65119.7141.8182.7223.70.32741.8551.360.7578.395.855483.7102.6121.5156.6191.70.54569.7585.5101.3130.5159.7590139.5171202.5261319.5Q3450.43655.868.481104.4127.872111.6136.8162208.8255.60.3531.548.82559.8570.8891.35111.836397.65119.7141.8182.7223.7Q4200.54569.7585.5101.3130.5159.7590139.5171202.5261319.50.43655.868.481104.4127.872111.6136.8162208.8255.6化学锚栓规格及技术参数锚杆边间距及砼基层最小厚度(mm)规格(mm)钻孔直径(mm)钻孔深度(mm)锚固长度(mm)破坏力(kN)锚杆直径间距边距最小间距最小边距基层最小厚M8x11010807520.5M102201109045140M10x13012959030M1227013511055160摩擦面抗滑移系数μM12x1451411511043M1430015012060170M12x1601411511041.8M1631015512565175M16x1901813513069.8M2042021017085220M20x26024165160110.5M24520260210105260M24x30028225220141M30700350280140330表13.2.3-1碳钢及合金钢锚栓钢材强度设计指标性能等级4.85.86.88.8锚栓强度用于抗拉计算fud,t250310370490设计值(MPa)用于抗剪计算fud,v150180220290表13.2.3-2不锈钢锚栓钢材强度设计指标性能等级507080螺纹直径(mm)≤32≤24≤24锚栓强度用于抗拉计算fud,t175370500设计值(MPa)用于抗剪计算fud,v105225300