工字钢截面特性

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1、按照截面积大体相近，并且饶X轴的抗弯强度不低于相应工字钢的原则，计算出了标准中H型钢有关型号与GB/T706-88〈热轧工字钢尺寸、外形、重量及允许偏差〉〉中的工字钢的有关型号以及他们的性能参数比较表（见表Ｂ１），以供有关人员在使用Ｈ型钢替代工字钢时参考。表Ｂ１Ｈ型钢与工字钢型号及性能参数比较表工字钢型号Ｈ型钢型号Ｈ型钢与工字钢性能参数比较工字钢型号Ｈ型钢型号Ｈ型钢与工字钢性能参数比较横截面积抗弯强度抗剪强度抗弯刚度惯性半径横截面积抗弯强度抗剪强度抗弯刚度惯性半径ixiyixiyI10H125×601.191.361.631.701.200.86I40aH400×2000

2、.981.090.791.091.061.64I12..6H150×751.001.171.191.391.181.02H450×1500.971.110.971.251.131.11I14H175×901.081.371.151.711.261.18H446×1990.991.200.881.341.161.56I16H175×900.890.990.921.081.101.08I40bH400×2000.891.040.671.041.081.68H198×990.901.160.951.431.261.16H450×1500.891.060.831.191.151.

3、14H200×1001.061.331.161.671.251.17H446×1990.901.140.751.271.191.59I18H200×1000.901.010.951.131.121.11H450×2001.041.320.851.481.191.62H248×1241.071.551.092.131.411.39H500×1501.041.351.011.691.271.12I20aH248×1240.931.210.911.501.281.31I40cH400×2000.820.990.590.991.111.71H250×1251.071.381.09

4、1.721.281.32H450×1500.821.010.721.141.181.15I20bH248×1240.831.150.721.421.311.35H446×1990.831.090.651.221.221.63H250×1250.961.300.861.631.311.35H450×2000.951.260.741.411.221.65I22aH250×1250.901.050.921.201.161.21H500×1500.961.290.891.611.301.15H298×1490.991.401.021.901.381.41H496×1990.991

5、.420.811.761.341.61I22bH250×1250.811.000.741.141.181.23I45aH450×2000.951.050.811.051.051.52H298×1490.891.330.821.801.411.44H500×1500.961.070.971.191.021.05H300×1501.021.500.962.051.411.44H496×1990.991.180.891.301.151.48I25aH298×1490.861.080.841.291.221.36I45bH450×2000.871.000.701.001.071.

6、54H300×1500.981.220.991.471.221.36H500×1500.881.030.841.141.141.07I25bH298×1490.781.030.681.221.251.36H496×1990.911.130.751.241.171.50H300×1500.891.160.811.391.251.36H500×2001.031.280.861.421.181.52H346×1740.991.540.872.121.461.61I45cH450×2000.811.030.670.961.091.57I28aH346×1740.961.280.9

7、01.571.281.54H500×1500.821.050.801.091.161.09I28bH346×1740.871.210.741.501.311.55H496×1990.841.160.731.191.191.53H350×1751.041.460.871.831.321.58H500×2000.951.310.821.351.201.55I32aH350×1750.951.130.831.241.151.50H596×1991.011.590.971.961.401.45I32bH350×1750.871.080