1、工字钢简支梁容许载荷支 点 间 的 距 离 L/m2 3 4 5 6 7 8 9 10工字钢型号容 许 载 荷 P/t10 1.37 0.91 0.6812.6 2.2 1.4 1.1 0.8614 2.9 1.9 1.4 1.1 0.95 0.8216 3.9 2.6 2.0 1.6 1.3 1.118 5.2 3.5 2.6 2.1 1.7 1.5 1.3 1.220a 6.6 4.4 3.3 2.7 2.2 1.9 1.7 1.5 1.322a 8.7 5.8 4.5 3.5 2.9 2.5 2.2 1.9 1.725a 11.3 7.5 5.6 4.5 3.8 3.2 2.8 2.5
2、2.328a 14.2 9.5 7.1 5.7 4.7 4.1 3.6 3.2 2.832a 19.3 12.9 9.7 7.8 6.5 5.5 4.8 4.3 3.932c 21.2 14.2 10.6 8.5 7.1 6.1 5.3 4.7 4.336a 24.5 16.3 12.3 9.8 8.2 7.0 6.1 5.4 4.936c 26.9 17.9 13.5 10.8 8.9 7.7 6.7 5.9 5.440a 30.5 20.5 15.2 12.2 10.2 8.7 7.6 6.8 6.140c 33.3 22.2 16.6 13.3 11.1 9.5 8.3 7.4 6.64
3、5a 40.0 26.7 20.0 16.0 13.3 11.4 10.0 8.9 8.045c 43.9 29.3 21.9 17.6 14.6 12.6 10.9 9.8 8.750a 52.0 34.7 26.0 20.8 17.3 14.8 13.0 11.5 10.450c 58.2 38.8 29.1 23.3 19.4 16.6 14.6 12.2 11.656a 65.5 43.7 32.8 26.2 21.8 18.7 16.4 14.5 13.156c 71.4 47.6 35.7 28.6 23.8 20.4 17.8 15.9 14.363a 83.4 55.7 41.7 33.4 27.8 23.9 20.8 18.6 16.763c 92.3 61.6 46.2 36.9 30.7 26.4 23.0 20.5 18.5注：材料为 Q235A，允许应力为 140MPa
