q23a钢轴心受压构件的稳定系数φ

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1、Q235-A钢轴心受压构件的稳定系数φ表1λ012345678901.0000.9970.9950.9920.9890.9870.9840.9810.9790.976100.9740.9710.9680.9660.9630.9600.9580.9550.9520.949200.9470.9440.9410.9380.9360.9330.9300.9270.9240.921300.9180.9150.9120.9090.9060.9030.8990.8960.8930.889400.8860.8820.8790.8750

2、.8720.8680.8640.8610.8580.855500.8520.8490.8460.8430.8390.8360.8320.8290.8250.822600.8180.8140.8100.8060.8020.7970.7930.7890.7840.779700.7750.7700.7650.7600.7550.7500.7440.7390.7330.728800.7220.7160.7100.7040.6980.6920.6860.6800.6730.667900.6610.6540.6480.6410.6

3、340.6250.6180.6110.6030.5951000.5880.5800.5730.5660.5580.5510.5440.5370.5300.5231100.5160.5090.5020.4960.4890.4830.4760.4700.4640.4581200.4520.4460.4400.4340.4280.4230.4170.4120.4060.4011300.3960.3910.3860.3810.3760.3710.3670.3620.3570.3531400.3490.3440.3400.336

4、0.3320.3280.3240.3200.3160.3121500.3080.3060.3010.2980.2940.2910.2870.2840.2810.2771600.2740.2710.2680.2650.2620.2590.2560.2530.2510.2481700.2450.2430.2400.2370.2350.2320.2300.2270.2250.2231800.2200.2180.2160.2140.2110.2090.2070.2050.2030.2011900.1990.1970.1950.

5、1930.1910.1890.1880.1860.1840.1822000.1800.1790.1770.1750.1740.1720.1710.1690.1670.1662100.1640.1630.1610.1600.1590.1570.1560.1540.1530.1522200.1500.1490.1480.1460.1450.1440.1430.1410.1410.1392300.1380.1370.1360.1350.1330.1320.1310.1300.1290.1282400.1270.1260.12

6、50.1240.1230.1220.1210.1200.1190.1182500.117—————————当λ>250时,φ=7320/λ2表2扣件式钢管脚手架的gk1中立杆：边立杆：角立杆：注：钢管Φ483.5---3.84kg/m(37.67N/m)直角扣件---1.32kg/个(12.95N/个)对接扣件---1.84kg/个(18.04N/个)安全网、塑料编织布—0.002KN/m2钢管横杆、剪刀撑—0.04KN/m席子—0.008KN/m2竹笆—0.05KN/m2h---步距lb---立杆横距la---立杆纵

7、距立杆与纵向水平杆平均长度0.5m。扣件式钢管脚手架作业层面材料自重gk2表3种类板底支撑间距(m)栏杆设置gk2，lb(m)为以下时：0.91.21.51.8竹串片0.75有0.35870.41120.46370.5162无0.20870.26120.31370.3662木、其它1.0有0.34590.34840.45090.5034无0.19590.29840.30090.3534冲压钢1.5有0.33310.38560.43810.4906无0.18310.23560.28810.3406注:扣件式钢脚手板0.2

8、5KN/m2冲压钢脚手板0.3KN/m2木、竹串片脚手板0.35KN/m2扣件式钢管脚手架整体拉结和防护材料自重gk3表4围护材料封闭类型gk3，la(m)为以下时：整体拉结杆件设置情况1.21.51.82.1剪刀撑、增加一道横杆固定封闭材料安全网、塑料编织布半0.06020.07530.09040.1054全0.06140.07