轴心受压构件的稳定系数

1、精选优质文档-倾情为你奉上附录1 轴心受压构件的稳定系数普通钢构件轴心受压构件的截面类别（按GB50017-2003） 附表1-1截 面 形 式 及 主 轴截面类别板厚40mm轧制工字钢，翼缘宽与截面高之比0.8，对垂直于腹板的轴（轴）类轧制钢管，对任意轴不属于类和类的截面，以及格构式构件的分肢计算垂直于腹板轴的稳定类翼缘为轧制或剪切边焊接工字形截面，对通过或平行于腹板的轴（轴）类焊接T形截面，翼缘为轧制或剪切边，对通过或平行于腹板的轴（轴）焊接十字形截面，板件边缘为轧制或剪切，对轴、轴焊接矩形管截面，板件宽厚比20，对轴、轴板厚40mm不属于类和类的截面类轧制工字钢或H形截面，80mm，对通

2、过或平行于腹板的轴（轴）类轧制工字钢或H形截面，80mm，对垂直于腹板的轴（轴）轧制工字钢或H形截面，80mm，对通过或平行于腹板的轴（轴）类翼缘为轧制或剪切边焊接工字形截面，对垂直于腹板的轴（轴）类翼缘为轧制或剪切边焊接工字形截面，对通过或平行于腹板的轴（轴）类焊接箱形截面，板件宽厚比20，对轴、轴类a类截面轴心受压构件的稳定系数（按GB50017-2003） 附表1-2012345678901020304050607080901001101201301401501601701801902002102202302402501.0000.9950.9810.9630.9410.9160.883

3、0.8390.7830.7140.6380.5630.4940.4340.3830.3390.3020.2700.2430.2200.1990.1820.1660.1530.1410.1301.0000.9940.9790.9610.9390.9130.8790.8340.7760.7060.6300.5550.4880.4290.3780.3350.2980.2670.2410.2180.1980.1800.1650.1520.1401.0000.9930.9770.9590.9370.9100.8750.8290.7700.6990.6220.4480.4810.4230.3730.331

4、0.2950.2640.2380.2150.1960.1790.1640.1500.1391.0000.9920.9760.9570.9340.9070.8710.8240.7630.6910.6150.5410.4750.4180.3690.3270.2920.2620.2360.2130.1940.1770.1620.1490.1380.9990.9910.9740.9550.9320.9040.8670.8180.7570.6840.6070.5340.4690.4120.3640.3230.2890.2590.2330.2110.1920.1750.1610.1480.1360.999

5、0.9890.9720.9520.9290.9000.8630.8130.7500.6760.6000.5270.4630.4070.3600.3200.2850.2560.2310.2090.1900.1740.1590.1470.1350.9980.9880.9700.9500.9270.8970.8580.8070.7430.6680.5920.5200.4570.4020.3560.3160.2820.2530.2290.2070.1890.1720.1580.1460.1340.9980.9860.9680.9480.9240.8940.8540.8010.7360.6610.585

6、0.5140.4510.3970.3510.3120.2790.2510.2260.2050.1870.1710.1570.1440.1330.9970.9850.9660.9460.9210.8900.8490.7950.7280.6530.5770.5070.4450.3920.3470.3090.2760.2480.2240.2030.1850.1690.1550.1430.1320.9960.9830.9640.9440.9190.8860.8440.7890.7210.6450.5700.5000.4400.3870.3430.3050.2730.2460.2220.2010.183

7、0.1680.1540.1420.131b类截面轴心受压构件的稳定系数（按GB50017-2003） 附表1-3012345678901020304050607080901001101201301401501601701801902002102202302402501.0000.9920.9700.9360.8990.8560.8070.7510.6880.6210.5550.4930.4370.3870.3450.3080.2760.2490.2250.2040.1860.1700.1560.1440.1330.1231.0000.9910.9670.9320.8950.8520.8020.

8、7450.6810.6140.5490.4870.4320.3830.3410.3040.2730.2460.2230.2020.1840.1690.1550.1430.1321.0000.9890.9630.9290.8910.8470.7970.7390.6750.6080.5420.4810.4260.3780.3370.3010.2700.2440.2200.2000.1830.1670.1540.1420.1310.9990.9870.9600.9250.8870.8420.7910.7320.6680.6010.5360.4750.4210.3740.3330.2980.2670.

9、2410.2180.1980.1810.1660.1530.1410.1300.9990.9850.9570.9220.8820.8380.7860.7260.6610.5940.5290.4700.4160.3700.3290.2950.2650.2390.2160.1970.1800.1650.1510.1400.1290.9980.9830.9530.9180.8780.8330.7800.7200.6550.5880.5230.4640.4110.3650.3260.2910.2620.2360.2140.1950.1780.1630.1500.1380.1280.9970.9810.

10、9500.9140.8740.8280.7740.7140.6480.5810.5170.4580.4060.3610.3220.2880.2590.2340.2120.1930.1760.1620.1490.1370.1270.9960.9780.9460.9100.8700.8230.7690.7070.6410.5750.5110.4530.4020.3570.3180.2850.2560.2320.2100.1910.1750.1600.1480.1360.1260.9950.9760.9430.9060.8650.8180.7630.7010.6350.5680.5050.4470.

11、3970.3530.3150.2820.2540.2290.2080.1900.1730.1590.1460.1350.1250.9940.9730.9390.9030.8610.8130.7570.6940.6280.5610.4990.4420.3920.3490.3110.2790.2510.2270.2060.1880.1720.1580.1450.1340.124c类截面轴心受压构件的稳定系数（按GB50017-2003） 附表1-40123456789010203040506070809010011012013014015016017018019020021022023024025

12、01.0000.9920.9660.9020.8390.7750.7090.6480.5780.5170.4630.4190.3790.3420.3090.2800.2540.2300.2100.1920.1760.1620.1500.1380.1280.1191.0000.9900.9590.8960.8330.7680.7020.6360.5720.5110.4580.4150.3750.3390.3060.2770.2510.2280.2080.1900.1750.1610.1480.1370.1271.0000.9880.9530.8900.8260.7620.6950.6290.56

13、60.5050.4540.4110.3710.3350.3030.2740.2490.2260.2060.1890.1730.1590.1470.1360.1260.9990.9860.9470.8840.8200.7550.6890.6230.5590.5000.4490.4070.3670.3320.3000.2710.2460.2240.2050.1870.1720.1580.1460.1350.1250.9990.9830.9400.8770.8140.7480.6820.6160.5530.4940.4450.4030.3640.3280.2970.2690.2440.2220.20

14、30.1860.1700.1570.1450.1340.1240.9980.9810.9340.8710.8070.7420.6760.6100.5470.4880.4410.3990.3600.3250.2940.2660.2420.2200.2010.1840.1690.1560.1440.1330.1240.9970.9780.9280.8650.8010.7350.6690.6040.5410.4830.4360.3950.3560.3220.2910.2640.2390.2180.1990.1820.1680.1540.1430.1320.1230.9960.9760.9210.85

15、80.7940.7290.6620.5970.5350.4770.4320.3910.3530.3190.2880.2610.2370.2160.1970.1810.1660.1530.1420.1310.1220.9950.9730.9150.8520.7880.7220.6560.5910.5290.4720.4280.3870.3490.3150.2850.2580.2350.2140.1960.1790.1650.1520.1400.1300.1210.9930.9700.9090.8460.7810.7150.6490.5840.5230.4670.4230.3830.3460.31

16、20.2820.2560.2330.2120.1940.1780.1630.1510.1390.1290.120d类截面轴心受压构件的稳定系数（按GB50017-2003） 附表1-5012345678901020304050607080901001101201301401501601701801902001.0000.9840.9370.8480.7660.6900.6180.5520.4930.4390.3940.3590.3280.2990.2720.2480.2270.2080.1910.1760.1621.0000.9810.9270.8400.7590.6830.6120.5460

17、.4870.4340.3900.3560.3250.2960.2700.2460.2250.2060.1890.1740.9990.9780.9180.8310.7510.6750.6050.5400.4810.4290.3870.3530.3220.2930.2670.2440.2230.2040.1880.1730.9990.9740.9090.8230.7430.6680.5980.5340.4760.4240.3830.3500.3190.2900.2650.2420.2210.2030.1860.1710.9980.9690.9000.8150.7350.6610.5910.5280

18、.4700.4190.3800.3460.3160.2880.2620.2400.2190.2010.1840.1700.9960.9650.8910.8070.7280.6540.5850.5220.4650.4140.3760.3430.3130.2850.2600.2370.2170.1990.1830.1680.9940.9600.8830.7990.7200.6460.5780.5160.4600.4100.3730.3400.3100.2820.2580.2350.2150.1970.1810.1670.9920.9550.8740.7900.7120.6390.5720.5100

19、.4540.4050.3700.3370.3070.2800.2550.2330.2130.1960.1800.1660.9900.9490.8650.7820.7050.6320.5650.5040.4490.4010.3660.3340.3040.2770.2530.2310.2120.1940.1780.1640.9870.9440.8570.7740.6970.6250.5590.4980.4440.3970.3630.3310.3010.2750.2510.2290.2100.1920.1770.163Q235钢冷弯薄壁型钢轴心受压构件的稳定系数（按50018-2002） 附表1-6

20、012345678901020304050607080901001101201301401501601701801902002102202302402501.0000.9740.9470.9180.8860.8520.8180.7750.7220.6610.5880.5160.4520.3960.3490.3080.2740.2450.2200.1990.1800.1640.1500.1380.1270.1170.9970.9710.9440.9150.8820.8490.8140.7700.7160.6540.5800.5090.4460.3910.3440.3050.2710.2130.2

21、180.1970.1790.1630.1490.1370.1260.9950.9680.9410.9120.8790.8460.8100.7650.7100.6480.5730.5020.4400.3860.3400.3010.2680.2400.2160.1950.1770.1610.1480.1360.1250.9920.9660.9380.9090.8750.8430.8060.7600.7040.6410.5660.4960.4340.3810.3360.2980.2650.2370.2140.1930.1750.1600.1460.1350.1240.9890.9630.9360.9

22、060.8720.8390.8020.7550.6980.6340.5580.4890.4280.3760.3320.2940.2620.2350.2110.1910.1740.1590.1450.1330.1230.9870.9600.9330.9030.8680.8360.7970.7500.6920.6260.5510.4830.4230.3710.3280.2910.2590.2320.2090.1890.1720.1570.1440.1320.1220.9840.9580.9300.8990.8640.8320.7930.7440.6860.6180.5440.4760.4170.3

23、670.3240.2870.2560.2300.2070.1880.1710.1560.1430.1310.1210.9810.9550.9270.8960.8610.8290.7890.7390.6800.6110.5370.4700.4120.3620.3200.2840.2530.2270.2050.1860.1690.1540.1410.1300.1200.9790.9520.9240.8930.8580.8250.7840.7330.6730.6030.5300.4640.4060.3570.3160.2810.2510.2250.2030.1840.1670.1530.1400.1

24、290.1190.9760.9490.9210.8890.8550.8220.7790.7280.6670.5950.5230.4580.4010.3530.3120.2770.2480.2230.2010.1820.1660.1520.1390.1280.118Q345钢冷弯薄壁型钢轴心受压构件的稳定系数（按50018-2002） 附表1-7012345678901020304050607080901001101201301401501601701801902002102202302402501.0000.9710.9400.9060.8670.8290.7770.7100.6320.550

25、0.4750.4050.3470.3000.2610.2290.2030.1810.1620.1460.1320.1200.1090.1000.0920.0850.9970.9680.9370.9020.8640.8240.7710.7030.6230.5420.4670.3980.3420.2960.2580.2270.2010.1790.1600.1440.1300.1190.1080.0990.0910.9940.9650.9340.8980.8600.8190.7650.6950.6150.5350.4600.3920.3370.2920.2550.2240.1980.1770.158

26、0.1430.1290.1180.1070.0980.0910.9910.9620.9300.8940.8570.8150.7590.6880.6070.5270.4520.3860.3320.2880.2510.2210.1960.1750.1570.1410.1280.1160.1060.0980.0900.9880.9590.9270.8900.8530.8100.7520.6800.5990.5190.4450.3800.3270.2840.2480.2180.1940.1730.1550.1400.1270.1150.1060.0970.0890.9850.9560.9240.886

27、0.8490.8050.7460.6720.5910.5120.4380.3750.3220.2800.2450.2160.1910.1710.1530.1380.1260.1140.1050.0960.0880.9820.9520.9200.8820.8450.8000.7390.6640.5830.5040.4310.3690.3180.2760.2420.2130.1890.1690.1520.1370.1240.1130.1040.0950.0880.9790.9490.9170.8780.8410.7940.7320.6560.5740.4970.4240.3630.3130.272

28、0.2380.2100.1870.1670.1500.1360.1230.1120.1030.0940.0870.9760.9460.9130.8740.8370.7890.7250.6480.5660.4890.4180.3580.3090.2690.2350.2080.1850.1650.1490.1340.1220.1110.1020.0940.0860.9730.9430.9090.8700.8330.7830.7180.6400.5580.4820.4110.3520.3040.2650.2320.2050.1830.1630.1470.1330.1210.1100.1010.093

29、0.086附录2 普通受弯钢构件稳定系数一、焊接工字形和轧制H型钢等截面简支梁焊接工字形和轧制H型钢等截面简支梁的整体稳定系数应按下式计算： （附2-1）式中 梁整体稳定等效弯矩系数，根据荷载的形式和作用位置按附表2-1选用；梁的侧向长细比，； 梁的侧向计算长度，取受压翼缘侧向支承点间的距离； 梁毛截面对轴的回转半径； 梁的毛截面面积； 梁的截面高度； 梁受压翼缘边缘纤维的毛截面抵抗矩；钢材的屈服强度； 截面不对称影响系数：双轴对称焊接工字形截面（附图2-1a、d）的=0； 单轴对称焊接工字形截面：加强受压翼缘（附图2-1b）， 加强受拉翼缘（附图2-1c）的； 受压翼缘与全截面侧向惯性矩比值

30、，；、受压翼缘和受拉翼缘对轴的惯性矩。当按式（附2-1）计算得到的0.6时，应按式（附2-2）对进行修正，以代替。 且1.0 （附2-2）附图2-1 焊接工字形和轧制H型钢截面H型钢和等截面焊接工字形简支梁的系数 附表2-1项次侧 向 支 承荷 载适应范围2.02.01跨中无侧向支承均布荷载作用在上翼缘0.95图3-1a、b、d的截面2下翼缘1.333集中荷载作用在上翼缘1.094下翼缘1.675跨度中点有一个侧向支承点均布荷载作用在上翼缘1.15图3-1中的所有截面6下翼缘1.407集中荷载作用在截面上任意处1.758跨中有不少于两个等距离侧向支承点任意荷载作用在上翼缘1.209下翼缘1.4

31、010梁端有弯矩，跨中无荷载作用注：1.、为梁侧向支承点间的端弯矩，使梁产生同向曲率时取同号，反向曲率时取异号，且。 2.项次3、4、7指一个或少数几个集中荷载位于跨中央附近，其它情况的集中荷载应按项次1、2、5、6内的数值采用。 3.表中项次8、9的，当集中荷载作用在侧向支承点处时，取。 4.荷载作用在上翼缘是指荷载作用点在翼缘表面，方向指向截面形心；荷载作用在下翼缘是指荷载作用点在翼缘表面，方向背向截面形心 3.当0.8和满足以下情况时应乘以系数：项次1，当1.0时，乘以0.95；项次3，当0.5时，乘以0.90；当0.51.0时，乘以0.95.式（附2-1）也可用于等截面铆接（或高强度螺

32、栓连接）简支梁，其受压翼缘厚度包括翼缘角钢厚度在内。二、轧制普通工字钢简支梁轧制普通工字钢简支梁的整体稳定系数按附表2-2选用，如计算得到的0.6时，应按式（附2-2）对进行修正，以代替。三、普通轧制槽钢简支梁普通轧制槽钢简支梁的整体稳定系数，不论荷载的形式和荷载作用在截面上的位置，均可按式（附2-3）计算，如计算得到的0.6时，应按式（附2-2）对进行修正，以代替。 （附2-3）式中 、分别为槽钢截面的宽度、翼缘厚度和截面高度。普通轧制工字钢简支梁的稳定系数 附表2-2项次荷载情况工字钢型号自 由 长 度 (m)23456789101跨中无侧向支承点的梁集中荷载作用于上翼缘102022323

33、6632.002.402.801.301.481.600.991.091.070.800.860.830.680.720.680.580.620.560.530.540.500.480.490.450.430.450.402下翼缘1020224045633.105.507.301.952.803.601.341.842.301.011.371.620.821.071.200.690.860.960.630.730.800.570.640.690.520.560.603均布荷载作用于上翼缘1020224045631.702.102.601.121.301.450.840.930.970.680.

34、730.730.570.600.590.500.510.500.450.450.440.410.400.380.370.360.354下翼缘1020224045632.504.005.601.552.202.801.081.451.800.831.101.250.680.850.950.560.700.780.520.600.650.470.520.550.420.460.495跨中有侧向支承点的梁（荷载作用在截面高度位置）1020224045632.203.004.001.391.802.201.011.241.380.790.961.010.660.760.800.570.650.660.

35、520.560.560.470.490.490.420.430.43注： 1.项次1、2指一个或少数几个集中荷载位于跨中附近，其它情况应按项次3、4采用。2.表中的值适用于Q235钢，对其它钢号，表中数值应乘以。四、双轴对称工字形等截面（含H型钢）悬臂梁双轴对称工字形等截面（含H型钢）悬臂梁的整体稳定系数，可按式（附2-1）计算，但式中的系数应按附表2-3查取，计算梁的侧向长细比时梁的侧向计算长度取悬臂梁的悬臂长度。如计算得到的0.6时，应按式（附2-2）对进行修正，以代替。双轴对称工字形等截面（含H型钢）悬臂梁的系数 附表2-3项次荷 载 形 式0.601.241.241.961.963.1

36、01自由端一个集中荷载作用在上翼缘2下翼缘3均布荷载作用在上翼缘注： 本表是按支端为固定的情况确定的，当用于由邻跨延伸出来的伸臂梁时，应在构造上采取措施加强支承处的抗扭能力。五、受弯构件整体稳定系数的近似计算均匀弯曲的受弯构件，当120时，其整体稳定系数可按以下近似公式计算：1工字形截面（含H型钢）：双轴对称时 （附2-4）单轴对称时 （附2-5）2T形截面（弯矩作用在对称轴平面，绕轴）：1）弯矩使翼缘受压时双角钢T形截面 （附2-6）部分T型钢和双板件组合T形截面 （附2-7）2）弯矩使翼缘受拉且腹板宽厚比不大于时 （附2-8）按式（附2-4）式（附2-8）计算整体稳定系数得到的0.6时，不

37、需要对进行修正。按式（附2-4）、式（附2-5）计算得到的1.0时，取=1.0。附录3 受弯构件的挠度容许值受弯构件的容许挠度（按GB 50017-2003） 附表3-1项次构 件 类 别挠度容许值1吊车梁和吊车桁架（按自重和起重量最大的一台吊车计算挠度）(1)手动吊车和单梁吊车（包括悬挂吊车）(2)轻级工作制桥式吊车(3)中级工作制桥式吊车(4)重级工作制桥式吊车/500/800/1000/1200-2手动或电动葫芦的轨道梁/400-3有重轨（重量等于或大于38kg/m）轨道的工作平台梁有轻轨（重量等于或小于24kg/m）轨道的工作平台梁/600/400-4楼（屋）盖梁或桁架、工作平台梁（第

38、3项除外）和平台板(1)主梁或桁架（包括设有悬挂起重设备的梁和桁架）(2)抹灰顶棚的次梁(3)除(1)、(2)款外的其它梁（包括楼梯梁）(4)屋盖檩条支承无积灰的瓦楞铁和石棉瓦屋面者支承压型金属板、有积灰的瓦楞铁和石棉瓦等屋面者支承其它屋面材料者(4)平台板/400/250/250/150/200/200/150/500/350/300-5墙架结构（风荷载不考虑阵风系数）(1)支柱(2)抗风桁架（作为连接支柱的支承时）(3)砌体墙的横梁（水平方向）(4)支承压型金属板、瓦楞铁和石棉瓦墙面的横梁（水平方向）(5)带有玻璃窗的横梁（竖直和水平方向）-/200/400/1000/300/200/20

39、0注：1.为受弯构件的跨度（对悬臂梁和伸臂梁为悬伸长度的2倍）。 2.为永久和可变荷载标准值产生的挠度（如有起拱应减去拱度）的容许值；为可变荷载标准值产生的挠度的容许值。受弯构件的容许挠度（按GB 50018-2002） 附表3-2项次构 件 类 别容许挠度1檩条1)瓦楞铁屋面2)压型钢板、钢丝网水泥瓦和其他水泥制品瓦材屋面/150/2002墙梁1)压型钢板、瓦楞铁墙面（水平方向）2)窗洞顶部的墙梁（水平方向）3)窗洞顶部的墙梁（竖向）/150/200/200（且10mm）3刚架梁1)仅支承压型钢板屋面和檩条（承受活荷载或雪荷载）2)尚有吊顶3)有吊顶且抹灰/180/240/3604压型钢板1

40、)屋面板屋面坡度小于1/20时屋面坡度不小于1/20时2)墙板3)楼板/250/200/150/2005平台板/150注：为受弯构件的跨度。对于单跨山形门式刚架，为一侧斜梁的坡面长度；对于多跨山形门式刚架，为相邻柱之间斜梁一坡的坡面长度；对于悬臂梁，为悬伸长度的2倍。刚架柱顶侧移限值（按GB 50018-2002） 附表3-3吊车情况其 它 情 况柱顶侧移限值无吊车采用压型钢板等轻型钢墙板时采用砖墙时/75/100有桥式吊车吊车由驾驶室操作时吊车由地面操作时/400/180注：为刚架柱高度。附录4 薄壁受弯钢构件稳定系数一、对于附图4-1所示单轴或双轴对称截面（包括反对称截面）的薄壁简支受弯构件，当绕对称