符号意义： h—高度；r1—腿端圆弧半径； b—腿宽度；l—惯性矩； d—腰厚度；W—抗弯截面系数；t—平均腿厚度； i—惯性半径；C—形心； r—内圆弧半径；S—半截面的静力矩\ 型号 尺寸/mm 截面面积/cm2 理论质量/(kg/m) 参考数值 X～X Y-Y h b d t r r1 Ix/cWx/c ix/c Ix:S Iy/c Wy/c iy/c10 10 68 4.5 7.6 6.5 3.14.345 11.261 245 49 4.18.533.9.72 1.512.6 12 74 5.0 8.4 7.0 3.18.118 14.223 488 77.5 5.2 10.46.12.7 1.614 14 80 5.5 9.1 7.5 3.21.516 16.890 712 102 5.7 12.64.16.1 1.716 16 88 6.0 9.9 8.0 4.26.131 20.513 113141 6.5 13.93.21.2 1.818 18 94 6.5 10.8.5 4.30.756 24.143 166185 7.3 15.122 26.0 2.020a 20 10 7.0 11.9.0 4.35.578 27.929 237237 8.1 17.158 31.5 2.120b 20 10 9.0 11.9.0 4.39.578 31.069 250250 7.9 16.169 33.1 2.022a 22 11 7.5 12.9.5 4.42.128 33.070 340309 8.9 18.225 40.9 2.322b 22 11 9.5 12.9.5 4.46.528 36.524 357325 8.7 18.239 42.7 2.225a 25 11 8.0 13.10.5.48.541 38.105 502402 10. 21.280 48.3 2.425b 25 11 10. 13.10.5.53.541 42.030 528423 9.9 21.309 52.4 2.428a 28 12 8.5 13.10.5.55.404 43.492 711508 11. 24.345 56.6 2.528b 28 12 10. 13.10.5.61.004 47.888 748534 11. 24.379 61.2 2.432a 32 13 9.5 15.11.5.67.156 52.717 111692 12. 27.460 70.8 2.632b 32 13 11. 15.11.5.73.556 57.741 116726 12. 27.502 76.0 2.632c 32 13 13. 15.11.5.79.956 62.765 122760 12. 26.544 81.2 2.636a 36 13 10. 15.12.6.76.480 60.037 158875 14. 30.552 81.2 2.636b 36 13 12. 15. 12. 6.83.6865.689 165919 14. 30.5884.2.636c 36 14 14. 15.12.6.90.880 71.341 173962 13. 29.612 87.4 2.640a 40 14 10. 16.12.6.86.112 67.598 21710915. 34.660 93.2 2.740b 40 14 12. 16.12.6.94.112 73.878 22811415. 33.692 96.2 2.740c 40 14 14. 16.12.6.102.1180.158 23911915. 33.727 99.6 2.645a 45 15 11. 18.13.6.102.4480.420 22214317. 38.855 114 2.845b 45 15 13. 18.13.6_111.4487.485 3381501...
