满堂脚手架计算书

/150,10)=6.67mm满足要求!满堂脚手架平台上增加集中力最不利计算q'=G1k+G2k+Q1k+Q2k=0.04+0.14+0.4+0.4=1.49kN/mq2'=F1=1kN板底支撑钢管计算简图剪力图R'maxf=1.727kN变形图ν=5q'l4/384EI+Fl3/48EI=5×1.49×(1.0×103)4/(384×2.06×105×12.71×104)+1×(1.0×103)3/(48×2.06×105×12.71×104)=0.742mm≤min(1000/150,10)=6.67mm满足要求!五、横向支撑钢管验算平台横向支撑钢管类型单钢管钢管类型Φ48.3×3.6钢管截面抵抗矩W(cm3)5.26钢管截面惯性矩I(cm4)12.71钢管弹性模量E(N/mm2)2.06×105钢管抗压强度设计值[f](N/mm2)205立柱间纵向钢管支撑根数n2横向钢管验算方式简支梁横向支撑钢管按照均布荷载和集中荷载作用下简支梁计算,集中荷载P取板底支撑钢管传递最大支座力。满堂脚手架平台上无集中力q=1.0×g1k=0.048kN/mp=Rmax=0.802kNp'=R'max=0.588kN板底支撑钢管计算简图弯矩图Mmax=0.329kN·m剪力图Rmax=0.831kN变形图Vmax=1.426mmVmax=1.426mm≤min{1200/150,10}=8mmσ=Mmax/W=0.329×106/(5.26×103)=62.548N/mm2≤[f]=205N/mm2满足要求!满堂脚手架平台上增加集中力最不利计算q=1.2×g1k=0.048kN/mp=Rmax=0.802kNp'=R'max=0.588kNp2=Rmaxf=1.502kNp'2=R'maxf=1.088kN板底支撑钢管计算简图弯矩图Mmax=0.515kN·m剪力图Rmax=1.064kN