圆柱模板计算书-圆柱木模板

00mm。W=bh2/6=1000×202/6=66666.667mm3I=bh3/12=1000×203/12=666666.667mm41、强度验算验算简图弯矩图Mmax=0.428kN·mσ=Mmax/W=0.428×106/66666.667=6.42N/mm2≤[f]=13N/mm2满足要求!2、挠度验算验算简图变形图νmax=0.618mm≤[ν]=l/250=200/250=0.8mm满足要求!3、支座反力计算承载能力极限状态剪力图R1=0kNR2=11.577kNR3=1.891kNR4=6.709kNR5=5.525kNR6=5.441kNR7=6.759kNR8=7.806kNR9=7.559kNR10=7.625kNR11=7.607kNR12=7.612kNR13=7.611kNR14=7.611kNR15=7.611kNR16=7.611kNR17=7.612kNR18=7.61kNR19=7.616kNR20=7.592kNR21=7.683kNR22=7.095kNR23=5.603kNR24=4.511kNR25=3.353kNR26=2.226kNR27=1.002kN五、柱箍验算钢带宽度B(mm)30钢带厚度t2(mm)1.2钢带抗拉强度设计值f(N/mm2)235钢带弹性模量E(N/mm2)206000螺栓个数n1螺栓强度等级普8.8级螺栓直径M12螺栓抗拉强度设计值ftb(N/mm2)400螺栓有效截面积Ae(mm2)841、柱箍拉力T=Rmax×D/2=11.577×1.3/2=7.525kN2、柱箍强度σ=T/(B×t2)=7525/(30×1.2)=209.028N/mm2≤[σ]=235N/mm2满足要求!3、螺栓强度验算螺栓设计拉力Nt=nAeftb=1×84×400=33600N=33.6kN≥T=7.525kN满足要求!