1、型号尺寸/mm截面面积/cm2理论质量/(kg/m)参考数值XX Y-Yh b d t r r1 Ix/cm4 Wx/cm3 ix/cm Ix:Sx Iy/cm4 Wy/cm3 iy/cm10 100 68 4.5 7.6 6.5 3.4 14.345 11.261 245 49 4.14 8.59 33.0 9.72 1.5212.6 126 74 5.0 8.4 7.0 3.5 18.118 14.223 488 77.5 5.20 10.8 46.9 12.7 1.6114 140 80 5.5 9.1 7.5 3.8 21.516 16.890 712 102 5.76 12.0 64
2、.4 16.1 1.7316 160 88 6.0 9.9 8.0 4.0 26.131 20.513 1130 141 6.58 13.8 93.1 21.2 1.8918 180 94 6.5 10.7 8.5 4.3 30.756 24.143 1660 185 7.36 15.4 122 26.0 2.0020a 200 100 7.0 11.4 9.0 4.5 35.578 27.929 2370 237 8.15 17.2 158 31.5 2.1220b 200 102 9.0 11.4 9.0 4.5 39.578 31.069 2500 250 7.96 16.9 169 3
3、3.1 2.0622a 220 110 7.5 12.3 9.5 4.8 42.128 33.070 3400 309 8.99 18.9 225 40.9 2.3122b 220 112 9.5 12.3 9.5 4.8 46.528 36.524 3570 325 8.78 18.7 239 42.7 2.2725a 250 116 8.0 13.0 10.0 5.0 48.541 38.105 5020 402 10.2 21.6 280 48.3 2.4025b 250 118 10.0 13.0 10.0 5.0 53.541 42.030 5280 423 9.94 21.3 30
4、9 52.4 2.4028a 280 122 8.5 13.7 10.5 5.3 55.404 43.492 7110 508 11.3 24.6 345 56.6 2.5028b 280 124 10.5 13.7 10.5 5.3 61.004 47.888 7480 534 11.1 24.2 379 61.2 2.4932a 320 130 9.5 15.0 11.5 5.8 67.156 52.717 11100 692 12.8 27.5 460 70.8 2.6232b 320 132 11.5 15.0 11.5 5.8 73.556 57.741 11600 726 12.6
5、 27.1 502 76.0 2.6132c 320 134 13.5 15.0 11.5 5.8 79.956 62.765 12200 760 12.3 26.8 544 81.2 2.6136a 360 136 10.0 15.8 12.0 6.0 76.480 60.037 15800 875 14.4 30.7 552 81.2 2.6936b 360 138 12.0 15.8 12.0 6.0 83.680 65.689 16500 919 14.1 30.3 582 84.3 2.6436c 360 140 14.0 15.8 12.0 6.0 90.880 71.341 17
6、300 962 13.8 29.9 612 87.4 2.6040a 400 142 10.5 16.5 12.5 6.3 86.112 67.598 21700 1090 15.9 34.1 660 93.2 2.7740b 400 144 12.5 16.5 12.5 6.3 94.112 73.878 22800 1140 15.6 33.6 692 96.2 2.7140c 400 146 14.5 16.5 12.5 6.3 102.112 80.158 23900 1190 15.2 33.2 727 99.6 2.6545a 450 150 11.5 18.0 13.5 6.8
7、102.446 80.420 22200 1430 17.7 38.6 855 114 2.8945b 450 152 13.5 18.0 13.5 6_8 111.446 87.485 33800 1500 17.4 38.0 894 118 2.8445c 450 154 15.5 18.0 13.5 6.8 120.446 94.550 35300 1570 17.1 37.6 938 122 2.7950a 500 158 12.0 20.0 14.0 7.0 119,304 93.654 46500 1860 19.7 42.8 1120 142 3.0750b 500 160 14
8、.0 20.0 14.0 7.0 129.304 101.504 48600 1940 19.4 42.4 1170 146 3.0150c 500 162 16.0 20.0 14.0 7.0 139.304 109.354 50600 2080 19.0 41.8 1220 151 2.9656a 560 166 12.5 21.0 14.5 7.3 135.435 106.316 65600 2340 22.0 47.7 1370 165 3.1856b 560 168 14.5 21.0 14.5 7.3 146.635 115.108 68500 2450 21.6 47.2 149
9、0 174 3.1656c 560 170 16.5 21.0 14.5 7.3 157.835 123.900 71400 2550 21.3 46.7 1560 183 3.1663a 630 176 13.0 22.0 15.0 7.5 154.658 121.407 93900 2980 24.5 54.2 1700 193 3.3163b 630 178 15.0 22.0 15.0 7.5 167.258 131.298 98100 3160 24.2 53.5 1810 204 3.2963c 630 180 17.0 22.0 15.0 7.5 179.858 141.189
10、102000 3300 23.8 52.9 1920 214 3.2712120 74 5.0 8.4 7.0 3.5 17.818 13.987 436 72.7 4.95 10.3 46.9 12.7 1.6224a240 116 8.0 13.0 10.0 5.0 47.741 37.477 4570 381 9.77 20.7 280 48.4 2.4224b240 118 10.0 13.0 10.0 5.0 52.541 41.245 4800 400 9.57 20.4 297 50.4 2.3827a270 122 8.5 13.7 10.5 5.3 54.554 42.825
11、 6550 485 10.9 23.8 345 56.6 2.5127b270 124 10.5 13.7 10.5 5.3 59.954 47.064 6870 509 10.7 22.9 366 58.9 2.4730a300 126 9.0 14.4 11.0 5.5 61.254 48.084 8950 597 12.1 25.7 400 63.5 2.5530b300 128 11.0 14.4 11.0 5.5 67.254 52.794 9400 627 11.8 25.4 422 65.9 2.5030c300 130 13.0 14.4 11.0 5.5 73.254 57.
12、504 9850 657 11.6 25.0 445 68.5 2.4655a550 168 12.5 21.0 14.5 7.3 134.185 105.335 62900 2290 21.6 46.9 1370 164 3.1955b550 168 14.5 21.0 14.5 7.3 145.185 113.970 65600 2390 21.2 46.4 1420 170 3.1455c550 170 16.5 21.0 14.5 7.3 156.185 122.605 68400 2490 20.9 45.8 1480 175 3.08符号意义：h高度；r1腿端圆弧半径；b腿宽度；l
13、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。表 1 工字钢截面尺寸、截面面积、理论重量及截面特性 型号 截面尺寸， mm 截面面积cm2 理论重量kg/m 惯性矩， cm4 惯性半径， cm 截面模数， cm3 h b d t r r1 Ix Iy ix iy Wx Wy 10 100 68 4.5 7.6 6.5 3.3 14.345 11.261 245 33.0 4.14 1.52 49.0 9.72 12.6 126 74 5.0 8.4 7.0 3.5 18.118 14.223 488 46.9 5.20 1.61 77.5
14、12.7 14 140 80 5.5 9.1 7.5 3.8 21.516 16.890 712 64.4 5.76 1.73 102 16.1 16 160 88 6.0 9.9 8.0 4.0 26.131 20.513 1130 93.1 6.58 1.89 141 21.2 18 180 94 6.5 10.7 8.5 4.3 30.756 24.143 1660 122 7.36 2.00 185 26.0 20a 200 100 7.0 11.4 9.0 4.5 35.578 27.929 2370 158 8.15 2.12 237 31.5 20b 200 102 9.0 11
15、.4 9.0 4.5 39.578 31.069 2500 169 7.96 2.06 250 33.1 22a 220 110 7.5 12.3 9.5 4.8 42.128 33.070 3400 225 8.99 2.31 309 40.9 22b 20 112 9.5 12.3 9.5 4.8 46.528 36.524 3570 239 8.78 2.27 325 42.7 25a 250 116 8.0 13.0 10.0 5.0 48.541 38.105 5020 280 10.2 2.40 402 48.3 25b 250 118 10.0 13.0 10.0 5.0 53.
16、541 42.030 5280 309 9.94 2.40 423 52.4 28a 280 122 8.5 13.7 10.5 5.3 55.404 43.492 7110 345 11.3 2.50 508 56.6 28b 280 124 10.5 13.7 10.5 5.3 61.004 47.888 7480 379 11.1 2.49 534 61.2 32a 320 130 9.5 15.0 11.5 5.8 67.156 52.717 11100 460 12.8 2.62 692 70.8 32b 320 132 11.5 15.0 11.5 5.8 73.556 57.74
17、1 11600 502 12.6 2.61 726 76.0 32c 320 134 13.5 15.0 11.5 5.8 79.956 62.765 12200 544 12.3 2.61 760 81.2 36a 360 136 10.0 15.8 12.0 6.0 76.480 60.037 15800 552 14.4 2.69 875 81.2 36b 360 138 12.0 15.8 12.0 6.0 83.680 65.689 16500 582 14.1 2.64 919 84.3 36c 360 140 14.0 15.8 12.0 6.0 90.880 71.341 17
18、300 612 13.8 2.60 962 87.4 40a 400 142 10.5 16.5 12.5 6.3 86.112 67.598 21700 660 15.9 2.77 1090 93.2 40b 400 144 12.5 16.5 12.5 6.3 94.112 73.878 22800 692 15.6 2.71 1140 96.2 40c 400 146 14.5 16.5 12.5 6.3 102.112 80.158 23900 727 15.2 2.65 1190 99.6 45a 450 150 11.5 18.0 13.5 6.8 102.446 80.420 3
19、2200 855 17.7 2.89 1430 114 45b 450 152 13.5 18.0 13.5 6.8 111.446 87.485 33800 894 17.4 2.84 1500 118 45c 450 154 15.5 18.0 13.5 6.8 120.446 94.550 35300 938 17.1 2.79 1570 122 50a 500 158 12.0 20.0 14.0 7.0 119.304 93.654 46500 1120 19.7 3.07 1860 142 50b 500 160 14.0 20.0 14.0 7.0 129.304 101.504
20、 48600 1170 19.4 3.01 1940 146 50c 500 162 16.0 20.0 14.0 7.0 139.304 109.354 50600 1220 19.0 2.96 2080 151 56a 560 66 12.5 21.0 14.5 7.3 135.435 106.316 65600 1370 22.0 3.18 2340 165 56b 560 168 14.5 21.0 14.5 7.3 146.635 115.108 68500 1490 21.6 3.16 2450 174 56c 560 170 16.5 21.0 14.5 7.3 157.835 123.900 71400 1560 21.3 3.16 2550 183 63a 630 176 13.0 22.0 15.0 7.5 154.658 121.407 93900 1700 24.5 3.31 2980 193 63b 630 178 15.0 22.0 15.0 7.5 167.258 131.298 98100 1810 24.2 3.29 3160 204 63c 630 180 17.0 22.0 15.0 7.5 179.858 141.189 102000 1920 23.8 3.27 3300 214
