脚手架计算查表

&nbspQ235-A钢轴心受压构件的稳定系数φ
表1
λ&nbsp0&nbsp1&nbsp2&nbsp3&nbsp4&nbsp5&nbsp6&nbsp7&nbsp8&nbsp9
0&nbsp1.000&nbsp0.997&nbsp0.995&nbsp0.992&nbsp0.989&nbsp0.987&nbsp0.984&nbsp0.981&nbsp0.979&nbsp0.976
10&nbsp0.974&nbsp0.971&nbsp0.968&nbsp0.966&nbsp0.963&nbsp0.960&nbsp0.958&nbsp0.955&nbsp0.952&nbsp0.949
20&nbsp0.947&nbsp0.944&nbsp0.941&nbsp0.938&nbsp0.936&nbsp0.933&nbsp0.930&nbsp0.927&nbsp0.924&nbsp0.921
30&nbsp0.918&nbsp0.915&nbsp0.912&nbsp0.909&nbsp0.906&nbsp0.903&nbsp0.899&nbsp0.896&nbsp0.893&nbsp0.889
40&nbsp0.886&nbsp0.882&nbsp0.879&nbsp0.875&nbsp0.872&nbsp0.868&nbsp0.864&nbsp0.861&nbsp0.858&nbsp0.855
50&nbsp0.852&nbsp0.849&nbsp0.846&nbsp0.843&nbsp0.839&nbsp0.836&nbsp0.832&nbsp0.829&nbsp0.825&nbsp0.822
60&nbsp0.818&nbsp0.814&nbsp0.810&nbsp0.806&nbsp0.802&nbsp0.797&nbsp0.793&nbsp0.789&nbsp0.784&nbsp0.779
70&nbsp0.775&nbsp0.770&nbsp0.765&nbsp0.760&nbsp0.755&nbsp0.750&nbsp0.744&nbsp0.739&nbsp0.733&nbsp0.728
80&nbsp0.722&nbsp0.716&nbsp0.710&nbsp0.704&nbsp0.698&nbsp0.692&nbsp0.686&nbsp0.680&nbsp0.673&nbsp0.667
90&nbsp0.661&nbsp0.654&nbsp0.648&nbsp0.641&nbsp0.634&nbsp0.625&nbsp0.618&nbsp0.611&nbsp0.603&nbsp0.595
100&nbsp0.588&nbsp0.580&nbsp0.573&nbsp0.566&nbsp0.558&nbsp0.551&nbsp0.544&nbsp0.537&nbsp0.530&nbsp0.523
110&nbsp0.516&nbsp0.509&nbsp0.502&nbsp0.496&nbsp0.489&nbsp0.483&nbsp0.476&nbsp0.470&nbsp0.464&nbsp0.458
120&nbsp0.452&nbsp0.446&nbsp0.440&nbsp0.434&nbsp0.428&nbsp0.423&nbsp0.417&nbsp0.412&nbsp0.406&nbsp0.401
130&nbsp0.396&nbsp0.391&nbsp0.386&nbsp0.381&nbsp0.376&nbsp0.371&nbsp0.367&nbsp0.362&nbsp0.357&nbsp0.353
140&nbsp0.349&nbsp0.344&nbsp0.340&nbsp0.336&nbsp0.332&nbsp0.328&nbsp0.324&nbsp0.320&nbsp0.316&nbsp0.312
150&nbsp0.308&nbsp0.306&nbsp0.301&nbsp0.298&nbsp0.294&nbsp0.291&nbsp0.287&nbsp0.284&nbsp0.281&nbsp0.277
160&nbsp0.274&nbsp0.271&nbsp0.268&nbsp0.265&nbsp0.262&nbsp0.259&nbsp0.256&nbsp0.253&nbsp0.251&nbsp0.248
170&nbsp0.245&nbsp0.243&nbsp0.240&nbsp0.237&nbsp0.235&nbsp0.232&nbsp0.230&nbsp0.227&nbsp0.225&nbsp0.223
180&nbsp0.220&nbsp0.218&nbsp0.216&nbsp0.214&nbsp0.211&nbsp0.209&nbsp0.207&nbsp0.205&nbsp0.203&nbsp0.201
190&nbsp0.199&nbsp0.197&nbsp0.195&nbsp0.193&nbsp0.191&nbsp0.189&nbsp0.188&nbsp0.186&nbsp0.184&nbsp0.182
200&nbsp0.180&nbsp0.179&nbsp0.177&nbsp0.175&nbsp0.174&nbsp0.172&nbsp0.171&nbsp0.169&nbsp0.167&nbsp0.166
210&nbsp0.164&nbsp0.163&nbsp0.161&nbsp0.160&nbsp0.159&nbsp0.157&nbsp0.156&nbsp0.154&nbsp0.153&nbsp0.152
220&nbsp0.150&nbsp0.149&nbsp0.148&nbsp0.146&nbsp0.145&nbsp0.144&nbsp0.143&nbsp0.141&nbsp0.141&nbsp0.139
230&nbsp0.138&nbsp0.137&nbsp0.136&nbsp0.135&nbsp0.133&nbsp0.132&nbsp0.131&nbsp0.130&nbsp0.129&nbsp0.128
240&nbsp0.127&nbsp0.126&nbsp0.125&nbsp0.124&nbsp0.123&nbsp0.122&nbsp0.121&nbsp0.120&nbsp0.119&nbsp0.118
250&nbsp0.117&nbsp—&nbsp—&nbsp—&nbsp—&nbsp—&nbsp—&nbsp—&nbsp—&nbsp—
当λ>250时,&nbspφ=7320/λ2

表2&nbsp&nbsp&nbsp扣件式钢管脚手架的gk1
中立杆:&nbsp&nbsp
边立杆:&nbsp&nbsp
角立杆:&nbsp&nbsp
注:钢管Φ48&nbsp3.5—3.84kg/m&nbsp(37.67N/m)&nbsp
直角扣件—1.32&nbspkg/个(12.95N/个)
对接扣件—1.84&nbspkg/个(18.04N/个)
安全网、塑料编织布—0.002KN/m2&nbsp&nbsp&nbsp&nbsp钢管横杆、剪刀撑—0.04KN/m
席子—0.008&nbspKN/m2&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp竹笆—0.05&nbspKN/m2
h—步距&nbsp&nbsp&nbsp&nbsp&nbsplb—立杆横距&nbsp&nbsp&nbspla—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gk2
表3
种类&nbsp板底支撑间距
(m)&nbsp栏杆设置&nbspgk2,lb(m)为以下时:
&nbsp&nbsp&nbsp0.9&nbsp1.2&nbsp1.5&nbsp1.8
竹串片&nbsp0.75&nbsp有&nbsp0.3587&nbsp0.4112&nbsp0.4637&nbsp0.5162
&nbsp&nbsp无&nbsp0.2087&nbsp0.2612&nbsp0.3137&nbsp0.3662
木、其它&nbsp1.0&nbsp有&nbsp0.3459&nbsp0.3484&nbsp0.4509&nbsp0.5034
&nbsp&nbsp无&nbsp0.1959&nbsp0.2984&nbsp0.3009&nbsp0.3534
冲压钢&nbsp1.5&nbsp有&nbsp0.3331&nbsp0.3856&nbsp0.4381&nbsp0.4906
&nbsp&nbsp无&nbsp0.1831&nbsp0.2356&nbsp0.2881&nbsp0.3406

注:扣件式钢脚手板&nbsp&nbsp0.25KN/m2
冲压钢脚手板&nbsp&nbsp0.3&nbspKN/m2
木、竹串片脚手板&nbsp&nbsp0.35&nbspKN/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&nbsp封闭类型&nbspgk3,la(m)为以下时:
&nbsp整体拉结杆件设置情况
&nbsp&nbsp1.2&nbsp1.5&nbsp1.8&nbsp2.1&nbsp剪刀撑、增加一道横杆固定封闭材料
安全网、塑料编
织布&nbsp半&nbsp0.0602&nbsp0.0753&nbsp0.0904&nbsp0.1054&nbsp
&nbsp全&nbsp0.0614&nbsp0.0768&nbsp0.0922&nbsp0.1075&nbsp
席子&nbsp半&nbsp0.0638&nbsp0.0798&nbsp0.0958&nbsp0.1117&nbsp
&nbsp全&nbsp0.0686&nbsp0.0858&nbsp0.1030&nbsp0.1201&nbsp
竹笆&nbsp半&nbsp0.0890&nbsp0.1113&nbsp0.1336&nbsp0.1558&nbsp
&nbsp全&nbsp0.1190&nbsp0.1988&nbsp0.1786&nbsp0.2083&nbsp
表5&nbsp&nbsp&nbsp&nbspQ235钢钢材的强度设计值与弹性模量
抗拉、抗弯
f(KN/mm2)&nbsp抗&nbsp&nbsp压
fc(KN/mm2)&nbsp弹性模量
E(KN/mm2)
0.205&nbsp0.205&nbsp2.06&nbsp102

表6&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp钢管截面特性
外径

(Φd)&nbsp壁厚

(t)&nbsp截面积A
(cm2)&nbsp惯性矩
I
(cm4)&nbsp截面模量W
(cm3)&nbsp回转半径
i
(cm)&nbsp每米重

(kg/m)
Φ48&nbsp3.5&nbsp4.89&nbsp12.19&nbsp5.08&nbsp1.58&nbsp3.84
Φ51&nbsp3.0&nbsp4.52&nbsp13.08&nbsp5.13&nbsp1.70&nbsp3.55
作业层施工荷载计算基数—qk
表7
实用施工荷载标准值(kg/m2)&nbspqk,当lb为以下时&nbsp(KN/m)
&nbsp0.9&nbsp1.2&nbsp1.5&nbsp1.8
3&nbsp1.35&nbsp1.8&nbsp2.25&nbsp2.7
2&nbsp0.9&nbsp1.2&nbsp1.5&nbsp1.8
1&nbsp0.45&nbsp0.6&nbsp0.75&nbsp0.9
q0&nbsp0.45&nbspq0&nbsp0.6&nbspq0&nbsp0.75&nbspq0&nbsp0.9&nbspq0

表8&nbsp&nbsp&nbsp扣件式钢管脚手架立杆计算长度系数&nbsp
立&nbsp杆&nbsp横&nbsp距&nbsplb&nbsp&nbsp(m)&nbsp连&nbsp墙&nbsp件&nbsp布&nbsp置
&nbsp2步3跨&nbsp3步3跨
双排架&nbsp1.05&nbsp1.50&nbsp1.70
&nbsp1.30&nbsp1.55&nbsp1.75
&nbsp1.55&nbsp1.60&nbsp1.80
单排架&nbsp1.85
表9&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp换算长细比&nbsp
脚手架立杆横距(m)&nbsp脚手架与主体结构连墙点的坚向间距H1(步距数)
&nbsp2h&nbsp3h&nbsp4h
1.05&nbsp25&nbsp20&nbsp16
1.30&nbsp32&nbsp24&nbsp19
1.55&nbsp40&nbsp30&nbsp24
表10&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbspr’m的取值或计算式
构件类型&nbspr’m
&nbsp不组合风荷载&nbsp组合风荷载
受弯构件&nbsp&nbsp
1.1705
轴心受压&nbsp&nbsp
1.5607
注:SGK=&nbsp1.5GK即一个计算单元长度(1.5la)内的恒载作用效应标准值
SQK=&nbsp1.5QK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
立杆纵距(m)&nbsp步&nbsp&nbsp距&nbsp(m)
&nbsp1.2&nbsp1.35&nbsp1.50&nbsp1.80&nbsp2.00
1.2&nbsp0.351&nbsp0.366&nbsp0.380&nbsp0.411&nbsp0.431
1.5&nbsp0.380&nbsp0.396&nbsp0.411&nbsp0.422&nbsp0.463
1.8&nbsp0.409&nbsp0.425&nbsp0.441&nbsp0.474&nbsp0.496
2.0&nbsp0.429&nbsp0.445&nbsp0.462&nbsp0.495&nbsp0.517

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(m)&nbsp立杆纵距(m)&nbsp脚手架上脚手板铺设层数
&nbsp&nbsp2层&nbsp4层&nbsp6层
1.05&nbsp1.2&nbsp1.372&nbsp2.360&nbsp3.348
&nbsp1.5&nbsp1.715&nbsp2.950&nbsp4.185
&nbsp1.8&nbsp2.058&nbsp3.540&nbsp5.022
&nbsp2.0&nbsp2.286&nbsp3.933&nbsp5.580
1.30&nbsp1.2&nbsp1.549&nbsp2.713&nbsp3.877
&nbsp1.5&nbsp1.936&nbsp3.391&nbsp4.847
&nbsp1.8&nbsp2.323&nbsp4.069&nbsp5.816
&nbsp2.0&nbsp2.581&nbsp4.521&nbsp6.462
1.55&nbsp1.2&nbsp1.725&nbsp3.066&nbsp4.406
&nbsp1.5&nbsp2.156&nbsp3.832&nbsp5.508
&nbsp1.8&nbsp2.587&nbsp4.598&nbsp6.609
&nbsp2.0&nbsp2.875&nbsp5.109&nbsp7.344
1个立杆纵距的施工荷载NQK
表13
立杆横距(m)&nbsp立杆纵距(m)&nbsp均布施工荷载(KN/m2)
&nbsp&nbsp1.5&nbsp2.0&nbsp3.0&nbsp4.0&nbsp5.0
1.05&nbsp1.2&nbsp2.52&nbsp3.36&nbsp5.04&nbsp6.72&nbsp8.40
&nbsp1.5&nbsp3.15&nbsp4.20&nbsp6.30&nbsp8.40&nbsp10.50
&nbsp1.8&nbsp3.78&nbsp5.04&nbsp7.56&nbsp10.08&nbsp12.60
&nbsp2.0&nbsp4.20&nbsp5.60&nbsp8.40&nbsp11.20&nbsp14.00
1.30&nbsp1.2&nbsp2.97&nbsp3.96&nbsp5.94&nbsp7.92&nbsp9.90
&nbsp1.5&nbsp3.71&nbsp4.95&nbsp7.43&nbsp9.90&nbsp12.38
&nbsp1.8&nbsp4.46&nbsp5.94&nbsp8.91&nbsp11.80&nbsp14.85
&nbsp2.0&nbsp4.95&nbsp6.60&nbsp9.90&nbsp13.20&nbsp16.50
1.55&nbsp1.2&nbsp3.12&nbsp4.56&nbsp6.84&nbsp9.12&nbsp11.40
&nbsp1.5&nbsp4.28&nbsp5.70&nbsp8.55&nbsp11.40&nbsp14.25
&nbsp1.8&nbsp5.13&nbsp6.84&nbsp10.26&nbsp13.68&nbsp17.10
&nbsp2.0&nbsp5.70&nbsp7.60&nbsp11.40&nbsp15.20&nbsp19.00

格构式压杆&nbsp&nbsp(KN)
表14
立杆横距(m)&nbspH1&nbsp步&nbsp&nbsp距&nbsph(m)
&nbsp&nbsp1.20&nbsp1.35&nbsp1.50&nbsp1.80&nbsp2.00
1.05&nbsp2&nbsp97.756&nbsp80.876&nbsp67.521&nbsp48.491&nbsp39.731
&nbsp3&nbsp72.979&nbsp58.808&nbsp48.491&nbsp34.362&nbsp27.971
&nbsp4&nbsp64.769&nbsp52.217&nbsp42.988&nbsp30.321&nbsp24.714
1.30&nbsp2&nbsp92.899&nbsp76.511&nbsp63.641&nbsp45.447&nbsp37.345
&nbsp3&nbsp76.511&nbsp62.159&nbsp51.264&nbsp36.357&nbsp29.783
&nbsp4&nbsp69.705&nbsp56.465&nbsp46.388&nbsp32.808&nbsp26.743
1.55&nbsp2&nbsp86.018&nbsp70.532&nbsp58.475&nbsp41.605&nbsp34.124
&nbsp3&nbsp70.532&nbsp57.110&nbsp47.028&nbsp33.289&nbsp27.232
&nbsp4&nbsp62.876&nbsp50.664&nbsp41.605&nbsp29.302&nbsp23.925
注:Φ48&nbsp3.5钢管&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbspf=205N/mm2

格构式压杆的长细比&nbsp
表15
脚手架立杆横距(m)&nbsp脚手架与主体结构连墙点竖向间距H1(m)
&nbsp2.7&nbsp3.0&nbsp3.6&nbsp4.0&nbsp4.05&nbsp4.5&nbsp4.8&nbsp5.4&nbsp6.0
1.05&nbsp5.14&nbsp5.71&nbsp6.86&nbsp7.62&nbsp7.71&nbsp8.57&nbsp9.14&nbsp10.28&nbsp11.43
1.30&nbsp4.15&nbsp4.62&nbsp5.54&nbsp6.15&nbsp6.23&nbsp6.92&nbsp7.38&nbsp8.31&nbsp9.23
1.55&nbsp3.50&nbsp3.87&nbsp4.65&nbsp5.16&nbsp5.23&nbsp5.81&nbsp6.19&nbsp6.97&nbsp7.70
注:&nbsp=&nbsp(H1—脚手架连墙点的竖向间距&nbsp&nbspb—立杆横距)

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