外墻腳手架施工方案范例三在地下室頂板施工完成以后，從地下室基坑底先搭設(shè)落斜拉層。兩個(gè)懸挑斜拉層之間相互脫離，在滿足施工要托管小橫桿連墻桿攔桿安全網(wǎng)立管隔離板(網(wǎng))竹笆大橫桿連墻桿隔離板(網(wǎng))掃地桿[14(或I12.6)懸挑梁以后,可拆除槽鋼懸挑端部的下支撐件，在斜拉體系沒鋼絲繩夾6×19Φ17-1400鋼絲繩[14(或I12.6)懸挑梁a-6*50*200吊耳板M16螺母-6*50*50墊片花籃螺絲-6*50*50墊片M16螺母-6*50*200連接耳板bΦ16預(yù)埋吊環(huán)斜拉鋼絲繩），預(yù)埋錨定件→安裝懸挑槽鋼→立桿→底步小橫桿→底步大橫桿→鋪竹笆→欄桿→板（網(wǎng)）→安裝斜拉體系→上部各步小橫桿→上3.1荷載計(jì)算:GK2=（1.50×4+1.5）×0.0384×14+0.0132×6×14=5.14KNGK3=25.2×0.0384+4×0.0184=（4）欄桿、踢腳管、扣件：GK4=(1.50×0.0384×2+GK5=0.003×1.5×25.2=0.112+1.82K6ZZW，（Z根據(jù)《建筑施工扣件式鋼管腳手架安全技術(shù)規(guī)μ框S=1.2×0.5=0.6網(wǎng)ZZN=1.4(QK/2)+1.2[(GK1+GK2)/2+GK3+GK4+GK5+GK6]=1.4×9/2+1.2[(1.05+5.14)/2+1.04+1.98+0.11N=0.85×1.4(QK/2)+1.2[(GK1+GK2)/2+GK3+GK4+GK5]=0.85×1.4×9/2+1.2[(1.05+5.14)/2+1.04+1.98MW=0.85×1.4MWK=0.85×1.4WKLah2=0.85×1.4×0.392×1.5×1.82/1N/φA=14.49×103/(0.186×489)=159.3N/mm2＜[f]=205N/φA+M/W=13.54×103/(0.186×489)+0.227×106/(5.0ZZZW=0.7×1.842×0.888×0風(fēng)荷載產(chǎn)生的連墻桿軸力設(shè)計(jì)值:N1W=1.4WKAW=1.4×0.515×1.8×2×1.5×2=7.79KNN1=N1W+N0=7.79+5=12.79KNZZZ風(fēng)荷載產(chǎn)生的連墻桿軸力設(shè)計(jì)值:N1W=1.4WKAW=1.4×0.481×1.8×2×1.5×3=10.91KNN1=N1W+N0=10.91+5=15.91KNKKG=（1.50×4+1.5）×0.0384×3+0.0132×6×3=1.10KN（4）欄桿、踢腳管、扣件：G=(1.50×0.032+1.82K6ZZW，（Z根據(jù)《建筑施工扣件式鋼管腳手架安全技術(shù)規(guī)μ框S=1.2×0.5=0.6網(wǎng)ZZ不組合風(fēng)荷載時(shí):外側(cè)立管內(nèi)力：N1=1.4(QK/2)+1.2[(GK1+GK=1.4×9/2+1.2[(0.23+1.10)/2+0.23+0.43+0.024+0.13]=1.4×9/2+1.2[(0.23+1.10)/外側(cè)立管內(nèi)力：N1=0.85×1.4(QK/2)+1.2[(GK1+GK2=0.85×1.4×9/2+1.2[(0.23+1.10)/2+0.23+0.43+0.024+0.13]=0.85×1.4×9/2+1.2[(0.23+1.10)/=[8.07×（0.3+1.0）+7.37×0.3]/0.5挑梁最大正應(yīng)力（I12.6工字鋼梁）:σ=M/γW=12.7×106/σ=M/γW=12.7×106/(1.05×62.1×103)=194.8N/maxmaxmaxmaxbbbbσ=12.47×106/(0.913×77.5×103)=176.2N/mm2＜215Nbbbbσ=12.47×106/(0.885×80.5×103)=175N/mm2＜215N滿足要求。]錨固螺栓的抗拉應(yīng)力:σmax=R2/A=25.4×103/(115.4×2)=110FL22L由架體立桿計(jì)算得:N1=1.4(QK/2)+1.2[(GK1+GK2)/2+GK3+GK4+GK5+GK6]=1.4×9/2+1.2[(1.05+5.14)/2+1.04+1.98+0.11N2=1.4(QK/2)+1.2[(GK1+GK2)/2+GK3]=1.4×9/2+1.2[(1.05+5.14)/所示。斜拉筋吊拉于上一層陽臺(tái)內(nèi)側(cè)的混凝土梁內(nèi)率較大，施工時(shí)必須施加預(yù)應(yīng)力，使腳手架傳遞的 鋼板應(yīng)力6=22.54.35×103/180=125N/mm2＜215N/mm2，鋼筋與連接鋼板雙面焊，焊錨固螺栓應(yīng)力6=17270/156.7=110.2N/mm2＜140N/mm2,滿足要求。構(gòu)造形式如圖吊環(huán)拉應(yīng)力6=22.54×103/(2×254.34)=44.3N/mm2＜5K結(jié)構(gòu)用腳手架兩步同時(shí)使用，Q=(3.50+2Q=(1.50+2.5)/2×0.5×3GK32=25.2×0.0384+4×0.0184=1（4）欄桿、踢腳管、扣件：GK4=(3.50×0.0384×2+0.K6N1=1.4QK1+1.2[GK11+GK21+GK31+GK4+GK5+GK6]=1.4×9+1.2[1.05+6.21+3.12+4.87+0.265N2=1.4QK2+1.2(GK12+GK22+GK32)所用鋼管、扣件、安全網(wǎng)等認(rèn)真組織檢查驗(yàn)收，經(jīng)搭接或?qū)狱c(diǎn)應(yīng)交錯(cuò)布置，兩根相鄰縱向水平桿疤、分層、錯(cuò)位、硬彎、毛刺、壓