螺栓、焊缝承载力表格

1、一个摩擦型高强螺栓的承载力设计值表 螺栓 性能 等级 螺栓 直径 d(mm) 构件钢材钢 号 受 剪 的 承 载 力 设 计 值 nvb (kn) 受拉的 承载力 设计值n tb (kn) 单 剪双 剪 喷砂(丸) 喷砂(丸)后涂无机 富锌漆 喷砂(丸)后生赤锈 钢丝刷清除浮锈 或干净轧制面 喷砂(丸) 喷砂(丸)后涂无机 富锌漆 喷砂(丸)后生赤锈 钢丝刷清除浮锈 或干净轧制面 8.8s 16 q23532.425.232.421.664.850.464.843.2 64.0 q34536.028.836.025.272.057.672.050.4 20 q23550.639.450.633

2、.8101.378.8101.367.5 100.0 q34556.345.056.339.4112.590.0112.578.8 22 q23560.847.360.840.5121.594.5121.581.0 120.0 q34567.554.067.547.3135.0108.0135.094.5 24 q23570.955.170.947.3141.8110.3141.894.5 140.0 q34578.863.078.855.1157.5126.0157.5110.3 27 q23593.272.593.262.1186.3144.9186.3124.2 184.0 q34510

3、3.582.8103.572.5207.0165.6207.0144.9 30 q235113.488.2113.475.6226.8176.4226.8151.2 224.0 q345126.0100.8126.088.2252.0201.6252.0176.4 10.9s 16 q23540.531.540.527.081.063.081.054.0 80.0 q34545.036.045.031.590.072.090.063.0 20 q23562.848.862.841.9125.697.7125.683.7 124.0 q34569.855.869.848.8139.5111.61

4、39.597.7 22 q23577.059.977.051.3153.9119.7153.9102.6 152.0 q34585.568.485.559.9171.0136.8171.0119.7 24 q23591.170.991.160.8182.3141.8182.3121.5 180.0 q345101.381.0101.370.9202.5162.0202.5141.8 27 q235117.591.4117.578.3234.9182.7234.9156.6 232.0 q345130.5104.4130.591.4261.0208.8261.0182.7 30 q235143.

5、8111.8143.895.9287.6223.7287.6191.7 284.0 q345159.8127.8159.8111.8319.5255.6319.5223.7 注：表中螺栓的承载力设计值按下列公式计算： 受拉：ntb=0.8 p；受剪：nvb=0.9 nf p p高强螺栓预拉力；nf传力摩擦面数目；摩擦面抗滑移系数 一个10.9级承压型高强螺栓的承载力设计值表 2 螺栓 性能 等级 螺栓 直径 d 螺栓毛 截面面 积 a 螺栓的 螺纹间 距 p 螺栓有 效截面 面积ae 构件钢 材钢号 承 压 的 承 载 力 设 计 值 ncb (kn) 受拉的 承载力 设计值 ntb (kn)

6、 受剪的承载力设计值nvb (kn) 当 承 压 板 的 厚 度 t (mm) 为 承 剪 面 在 螺 杆 处 承 剪 面 在 螺 纹 处 (mm)(mm2)(mm)(mm2)568101214161820222530单 剪双 剪单 剪双 剪 10.9s 16201.12156.7 q23537.645.160.275.290.2105.3120.3135.4150.4165.4188.0225.6 78.362.3124.748.697.1 q34547.256.675.594.4113.3132.2151.0169.9188.8207.7236.0283.2 20314.22.5244.8

7、 q23547.056.475.294.0112.8131.6150.4169.2188.0206.8235.0282.0 122.497.4194.875.9151.8 q34559.070.894.4118.0141.6165.2188.8212.4236.0259.6295.0354.0 22380.12.5303.4 q23551.762.082.7103.4124.1144.8165.4186.1206.8227.5258.5310.2 151.7117.8235.794.1188.1 q34564.977.9103.8129.8155.8181.7207.7233.6259.628

8、5.6324.5389.4 24452.43352.5 q23556.467.790.2112.8135.4157.9180.5203.0225.6248.2282.0338.4 176.3140.2280.5109.3218.6 q34570.885.0113.3141.6169.9198.2226.6254.9283.2311.5354.0424.8 27572.63459.4 q23563.576.1101.5126.9152.3177.7203.0228.4253.8279.2317.3380.7 229.7177.5355.0142.4284.8 q34579.795.6127.41

9、59.3191.2223.0254.9286.7318.6350.5398.3477.9 30706.93.5560.6 q23570.584.6112.8141.0169.2197.4225.6253.8282.0310.2352.5423.0 280.3219.1438.3173.8347.6 q34588.5106.2141.6177.0212.4247.8283.2318.6354.0389.4442.5531.0 注：1、表中螺栓的承载力设计值按下列公式计算： 承压：ncb=d t fcb；受拉：ntb=ae ftb；受剪(在螺杆处)：nvb=nv a fvb；受剪(在螺纹处)：nv

10、b=nv ae fvb 2、单角钢单面连接的螺栓，其承载力设计值应按表中的数值乘以0.85。 一个普通c级螺栓的承载力设计值表 3 螺栓 直径 d 螺栓毛 截面面 积 a 螺栓的 螺纹间 距 p 螺栓有 效截面 面积ae 构件钢 材钢号 承压的承载力设计值nvb (kn) 受拉的 承载力 设计值 ntb (kn) 受剪的承载力 设计值nvb (kn) 当承压板的厚度 t (mm) 为 (mm)(mm2)(mm)(mm2)2.534568101214161820222530单剪双剪 12113.11.7584.3 q2359.211.014.618.322.029.336.643.951.258

11、.665.973.280.591.5109.8 14.315.831.7 q34511.613.918.523.127.737.046.255.464.773.983.292.4101.6115.5138.6 14153.92115.4 q23510.712.817.121.425.634.242.751.259.868.376.985.493.9106.8128.1 19.621.643.1 q34513.516.221.627.032.343.153.964.775.586.297.0107.8118.6134.8161.7 16201.12156.7 q23512.214.619.524

12、.429.339.048.858.668.378.187.897.6107.4122.0146.4 26.628.156.3 q34515.418.524.630.837.049.361.673.986.298.6110.9123.2135.5154.0184.8 18254.52.5192.5 q23513.716.522.027.532.943.954.965.976.987.898.8109.8120.8137.3164.7 32.735.671.3 q34517.320.827.734.741.655.469.383.297.0110.9124.7138.6152.5173.3207.

13、9 20314.22.5244.8 q23515.318.324.430.536.648.861.073.285.497.6109.8122.0134.2152.5183.0 41.644.088.0 q34519.323.130.838.546.261.677.092.4107.8123.2138.6154.0169.4192.5231.0 22380.12.5303.4 q23516.820.126.833.640.353.767.180.593.9107.4120.8134.2147.6167.8201.3 51.653.2106.4 q34521.225.433.942.450.867

14、.884.7101.6118.6135.5152.5169.4186.3211.8254.1 24452.43352.5 q23518.322.029.336.643.958.673.287.8102.5117.1131.8146.4161.0183.0219.6 59.963.3126.7 q34523.127.737.046.255.473.992.4110.9129.4147.8166.3184.8203.3231.0277.2 27572.63459.4 q23520.624.732.941.249.465.982.498.8115.3131.8148.2164.7181.2205.9

15、247.1 78.180.2160.3 q34526.031.241.652.062.483.2104.0124.7145.5166.3187.1207.9228.7259.9311.9 30706.93.5560.6 q23522.927.536.645.854.973.291.5109.8128.1146.4164.7183.0201.3228.8274.5 95.399.0197.9 q34528.934.746.257.869.392.4115.5138.6161.7184.8207.9231.0254.1288.8346.5 一个普通c级螺栓的承载力设计值表 4 螺栓 直径 d 螺栓

16、毛 截面面 积a 螺栓的 螺纹间 距p 螺栓有 效截面 面积ae 构件钢 材钢号 承压的承载力设计值nvb受拉的 承载力 设计值 ntb(kn) 受剪的承载力 设计值nvb(kn) 当承压板的厚度 t (mm) 为 (mm)(mm2)(mm)(mm2)2.534568101214161820222530单剪双剪 361017.94816.7 q23527.532.943.954.965.987.8109.8131.8153.7175.7197.6219.6241.6274.5329.4 138.8142.5285.0 q34534.741.655.469.383.2110.9138.6166.

17、3194.0221.8249.5277.2304.9346.5415.8 421385.44.51120.9 q23532.038.451.264.176.9102.5128.1153.7179.3205.0230.6256.2281.8320.3384.3 190.6194.0387.9 q34540.448.564.780.997.0129.4161.7194.0226.4258.7291.1323.4355.7404.3485.1 481809.651473.1 q23536.643.958.673.287.8117.1146.4175.7205.0234.2263.5292.8322.

18、1366.0439.2 250.4253.3506.7 q34546.255.473.992.4110.9147.8184.8221.8258.7295.7332.6369.6406.6462.0554.4 562463.05.52030.0 q23542.751.268.385.4102.5136.6170.8205.0239.1273.3307.4341.6375.8427.0512.4 345.1344.8689.6 q34553.964.786.2107.8129.4172.5215.6258.7301.8345.0388.1431.2474.3539.0646.8 643217.06

19、2676.0 q23548.858.678.197.6117.1156.2195.2234.2273.3312.3351.4390.4429.4488.0585.6 454.9450.4900.8 q34561.673.998.6123.2147.8197.1246.4295.7345.0394.2443.5492.8542.1616.0739.2 注：1、表中螺栓的承载力设计值按下列公式计算： 承压：ncb=d t fcb；受拉：ntb=ae ftb；受剪：nvb=nv a fvb 2、单角钢单面连接的螺栓，其承载力设计值应按表中的数值乘以0.85。 一个8.8级承压型高强螺栓的承载力设计值

20、表 5 螺栓 性能 等级 螺栓 直径 d 螺栓毛 截面面 积 a 螺栓的 螺纹间 距 p 螺栓有 效截面 面积ae 构件钢 材钢号 承 压 的 承 载 力 设 计 值 ncb (kn) 受拉的 承载力 设计值 ntb (kn) 受剪的承载力设计值nvb (kn) 当 承 压 板 的 厚 度 t (mm) 为 承 剪 面 在 螺 杆 处 承 剪 面 在 螺 纹 处 (mm)(mm2)(mm)(mm2)568101214161820222530单 剪双 剪单 剪双 剪 8.8s 16201.12156.7 q23537.645.160.275.290.2105.3120.3135.4150.416

21、5.4188.0225.6 62.750.3100.539.278.3 q34547.256.675.594.4113.3132.2151.0169.9188.8207.7236.0283.2 20314.22.5244.8 q23547.056.475.294.0112.8131.6150.4169.2188.0206.8235.0282.0 97.978.5157.161.2122.4 q34559.070.894.4118.0141.6165.2188.8212.4236.0259.6295.0354.0 22380.12.5303.4 q23551.762.082.7103.4124.

22、1144.8165.4186.1206.8227.5258.5310.2 121.495.0190.175.8151.7 q34564.977.9103.8129.8155.8181.7207.7233.6259.6285.6324.5389.4 24452.43352.5 q23556.467.790.2112.8135.4157.9180.5203.0225.6248.2282.0338.4 141.0113.1226.288.1176.3 q34570.885.0113.3141.6169.9198.2226.6254.9283.2311.5354.0424.8 27572.63459.

23、4 q23563.576.1101.5126.9152.3177.7203.0228.4253.8279.2317.3380.7 183.8143.1286.3114.9229.7 q34579.795.6127.4159.3191.2223.0254.9286.7318.6350.5398.3477.9 30706.93.5560.6 q23570.584.6112.8141.0169.2197.4225.6253.8282.0310.2352.5423.0 224.2176.7353.4140.1280.3 q34588.5106.2141.6177.0212.4247.8283.2318

24、.6354.0389.4442.5531.0 注：1、表中螺栓的承载力设计值按下列公式计算： 承压：ncb=d t fcb；受拉：ntb=ae ftb；受剪(在螺杆处)：nvb=nv a fvb；受剪(在螺纹处)：nvb=nv ae fvb 2、单角钢单面连接的螺栓，其承载力设计值应按表中的数值乘以0.85。 每1cm长直角角焊缝的承载力设计值表 角焊缝的 焊脚尺寸 hf(mm) 受压、受拉、受剪的承载力设计值nfw(kn/cm) 采用自动焊、半自动焊和e43型焊条的手 工焊焊接q235钢 采用自动焊、半自动焊和e50型焊条的手 工焊焊接q345钢 采用自动焊、半自动焊和e55型焊条的手 工焊

25、焊接q390、q420钢 33.364.204.62 44.485.606.16 55.607.007.70 66.728.409.24 88.9611.2012.32 1011.2014.0015.40 1213.4416.8018.48 1415.6819.6021.56 1617.9222.4024.64 1820.1625.2027.72 2022.4028.0030.80 2224.6430.8033.88 2528.0035.0038.50 2831.3639.2043.12 3033.6042.0046.20 注：1.表中数值按下式计算：nfwhe lw ffw；he0.7 hf

26、，lw10mm 2.施工条件较差的高空焊缝，承载力乘折减系数0.9 3.单角钢单面连接的直角角焊缝，承载力乘折减系数0.85 4.承受静载或间接动载的正面角焊缝，承载力可乘增大系数1.22 5.角焊缝的计算长度应取实际长度减2hf 每1cm长对接焊缝的承载力设计值表 焊接件的 较小厚度 t (mm) 自动焊、半自动焊和e43型焊条的手工焊焊接q235钢自动焊、半自动焊和e50型焊条的手工焊焊接q345钢 受压的承载 力设计值 ncw (kn/cm) 受拉的承载力设计值 ntw (kn/cm) 受剪的承载 力设计值 nvw (kn/cm) 受压的承载 力设计值 ncw (kn/cm) 受拉、受弯的承载力设计值 ntw