10mm,满足要求。纵向斜杆的计算纵向杆按照?3跨连续梁进行强度和挠度计。L=立杆纵距/cos[ATan(施工梯层高度/水平距离)]=1.0/cos[arctg(5.0/3.0)]=1.94m梯级板斜宽=0.25/(cos[ATan(5.0/3.0)])=0.49荷载值计算横向杆的自重标准值?P11=0.0326×0.80=0.03kN脚手板的荷载标准值?P12=0.30×0.80×0.49=0.12kN活荷载标准值?Q=1.00×0.80×0.49=0.39kN荷载的计算值?P=0.5[1.2?×(0.03+0.12)+1.4?×0.39]=0.36kN抗弯强度验算弯矩系数:KM=0.175,Mmax=KmPL=0.175×0.36×1000×1944=122472N.mm2=Mmax/W=122472/4490=27.28N/mm纵向斜杆抗弯强度σ?=27.28N/mm2<f=205N/mm2,满足要求。挠度强度验算挠度系数K=1.146=KυPL3/(100EI)=1.146×0.36×1000×19443/(100×206000×107800)=0.53mm[υ]=L/150=1944/150=12.96mm纵向斜杆挠度υ?max=0.53mm<[υ]=12.96mm,满足要求。4)最大支座反力支座反力系数?K=4.417,R=KP=4.417×0.36=1.59纵向水平杆与立杆连接扣件抗滑移验算纵向水平杆与立杆连接扣件?R=1.59kN<Rc=8.00kN(R?c为扣件抗滑承载力设计值?),?满足要求。内力图如下图立杆计算立杆容许长细比验算计算长度附加系数k=1.0考虑脚手架整体稳定因素的单杆计算长度系数μ?=1.5立杆步距h=1.90m,立杆计算长度?Lo=kμh=1.0×1.50×1.90=2.85m=2850mmλ=Lo/i=2850/15.9=179.25