QA钢轴心受压构件的稳定系数

1、Q 2 3 5 - A钢 轴 心 受 压 构 件 的 稳 定 系 数表 1 012345678901.00.90.90.90.90.90.90.90.90.900979592898784817976100.90.90.90.90.90.90.90.90.90.974716866636058555249200.90.90.90.90.90.90.90.90.90.947444138363330272421300.90.90.90.90.90.90.80.80.80.818151209060399969389400.80.80.80.80.80.80.80.80.80.88682797572686

2、4615855500.80.80.80.80.80.80.80.80.80.852494643393632292522600.80.80.80.80.80.70.70.70.70.718141006029793898479700.70.70.70.70.70.70.70.70.70.775706560555044393328800.70.70.70.70.60.60.60.60.60.622161004989286807367900.60.60.60.60.60.60.60.60.60.561544841342518110395100.50.50.50.50.50.50.50.50.50.50

3、88807366585144373023110.50.50.50.40.40.40.40.40.40.4016090296898376706458120.40.40.40.40.40.40.40.40.40.4052464034282317120601130.30.30.30.30.30.30.30.30.30.3096918681767167625753140.30.30.30.30.30.30.30.30.30.3049444036322824201612150.30.30.30.20.20.20.20.20.20.2008060198949187848177160.20.20.20.20

4、.20.20.20.20.20.2074716865625956535148170.20.20.20.20.20.20.20.20.20.2045434037353230272523180.20.20.20.20.20.20.20.20.20.2020181614110907050301190.10.10.10.10.10.10.10.10.10.1099979593918988868482200.10.10.10.10.10.10.10.10.10.1080797775747271696766210.10.10.10.10.10.10.10.10.10.1064636160595756545

5、352220.10.10.10.10.10.10.10.10.10.1050494846454443414139230.10.10.10.10.10.10.10.10.10.1038373635333231302928240.10.10.10.10.10.10.10.10.10.1027262524232221201918250.1017当 250 时, =7320/ 2表 2扣件式钢管脚手架的 gk1中立杆：边立杆：1lah0 .377 lb0 .259 0 .41310 h1lah0 .188 lb0 .372 0 .41310 h角立杆：10 .413 h 0 .188 la lb0 .

6、485 10 h注：钢管 48 3.5-3.84kg/m (37.67N/m)直角扣件 -1.32 kg/个(12.95N/ 个 )对接扣件 -1.84 kg/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 0.008 KN/m 2竹笆 0.05 KN/m 2h- 步距lb-立杆横距la-立杆纵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gk 2表 3种类板底支撑间栏杆设gk2 ，lb(m) 为以下时：距置0.91.21.51.8(m)0.350.410.460.51有0.7587123762竹串片0.200

7、.260.310.36无871237620.340.340.450.50有木、其598409341.0它0.190.290.300.35无598409340.330.380.430.49有1.531568106冲压钢0.180.230.280.34无31568106注 : 扣件式钢脚手板20.25KN/m冲压钢脚手板 0.3 KN/m 2木、竹串片脚手板0.35 KN/m 2扣件式钢管脚手架整体拉结和防护材料自重gk 3表 4整体拉结围护材封闭gk ， la(m) 为以下时：杆件设置3料类型情况1.21.51.82.1安全0.060.070.0900.105半网 、 塑025344料编0.06

8、0.070.0920.107全织布1468250.060.070.0950.111剪刀撑、半增加一道389887席子横杆固定0.060.080.1030.120全封闭材料8658010.080.110.1330.155半901368竹笆0.110.190.1780.208全908863表 5Q235钢钢材的强度设计值与弹性模量抗拉、抗弯抗压弹性模量222f （ KN/mm）fc （KN/mm）E（ KN/mm）0.2050.2052.06102表 6钢管截面特性壁惯性回转半外径截面截面模每米重厚矩径（d积 A量 W（kg/m（ t（ cm2 ）I（ cm3）i）（cm4 ）（ cm） 483.

9、54.8912.15.081.583.84 9 513.04.5213.085.131.703.55作业层施工荷载计算基数-qk表 7实用施工qk, 当 l b 为以下时 (KN/m)荷载标准0.91.21.51.8值（ kg/m2）31.351.82.252.720.91.21.51.810.450.60.750.9q00.45 q 00.6 q 00.75 q 00.9 q 0表 8扣件式钢管脚手架立杆计算长度系数连墙件布置立 杆 横 距 l b (m)2步3跨3步3跨1.051.501.70双排架1.301.551.751.551.601.80单排架1.85表 9换算长细比脚手架与主体结

10、构连墙点的坚向间距1H ( 步脚手架立杆距数 )横距 (m)2h3h4h1.052520161.303224191.55403024表 10r m的取值或计算式构件类型r m不组合风荷载组合风荷载受弯构件1.1705轴心受压1.5607注： SGK=1.5G K 即一个计算单元长度 (1.5la)内的恒载作用效应标准值SQK=1.5Q K 即一个计算单元长度 (1.5la)内的活荷载作用效应标准值一步一纵距的钢管、扣件重NGK1（ KN）表 11立杆纵步距 (m)距 (m)1.21.351.501.802.001.20.3510.3660.3800.4110.4311.50.3800.3960

11、.4110.4220.4631.80.4090.4250.4410.4740.4962.00.4290.4450.4620.4950.517脚手架 1 个立杆纵距的附设构件及物品的重力NGK2(KN)表 12立杆横距立杆纵距脚手架上脚手板铺设层数(m)(m)2 层4 层6 层1.21.3722.3603.3481.51.7152.9504.1851.051.82.0583.5405.0222.02.2863.9335.5801.21.5492.7133.8771.51.9363.3914.8471.301.82.3234.0695.8162.02.5814.5216.4621.21.7253.

12、0664.4061.551.52.1563.8325.5081.82.5874.5986.6092.02.8755.1097.3441 个立杆纵距的施工荷载NQK表 13立杆横距立杆纵距均布施工荷载 (KN/m2)(m)(m)1.52.03.04.05.01.051.22.523.365.046.728.401.53.154.206.308.4010.5010.012.61.83.785.047.56802.04.205.608.4011.214.0001.22.973.965.947.929.901.53.714.957.439.9012.381.3011.814.81.84.465.948

13、.910513.216.52.04.956.609.90001.23.124.566.849.1211.401.5511.414.21.54.285.708.55051.85.136.8410.213.617.168011.415.219.02.05.707.60000格构式压杆f(KN)表 14立杆横H1步距 h(m)距 (m)1.201.351.501.802.0097.7580.8767.5248.4939.732661111.05372.9758.8048.4934.3627.9798121464.7652.2142.9830.3224.719781492.8976.5163.6445.4437.342911751.30376.5162.1551.2636.3529.7819473469.7056.4646.3832.8026.745588386.0170.5358.4741.6034.1228255470.5357.1147.0233.2827.231.5532089262.8750.6641.6029.3023.92464525注: 483.5 钢管f=205N/mm2格构式压杆的长细比