标准规范下载简介
上部结构模板方案3.1(1)-(1).doc取1.0m单位宽度计算。计算简图如下:
W=bh2/6=1000×152/6=37500mm3,I=bh3/12=1000×153/12=281250mm4
q=γGΣqGk+1.4ΣqQk=1.35×[0.3+(24+1.5)×0.3]×1.0+1.4×(1+2)×1.0=14.933kN/m
q静=γGΣqGk=1.35×[0.3+(24+1.5)×0.3]×1.0=10.732kN/m
DL/T 1917-2018 电力用户业扩报装技术规范 q活=1.4ΣqQk=1.4×(1+2)×1.0=4.2kN/m
q`=ΣqGk+ΣqQk=[0.3+(24+1.5)×0.3]×1.0+(1+2)×1.0=10.95kN/m
Mmax=0.125q静L2+0.125q活L2=0.125×10.732×0.22+0.125×4.2×0.22=0.075kN·m
σmax=Mmax/W=0.075×106/37500=1.991N/mm2≤[f]=15N/mm2
Qmax=0.5q静L+0.5q活L=0.5×10.732×0.2+0.5×4.2×0.2=1.493kN
τmax=3Qmax/(2bh)=3×1.493×103/(2×1000×15)=0.149N/mm2≤[τ]=1.4N/mm2
νmax=5q`l4/(384EI)=5×10.95×2014/(384×6000×281250)=0.135mm
νmax=0.135mm≤[ν]=min[L/250,5]=min[201/250,5]=0.8mm
R1=R2=0.5q1L=0.5×14.933×0.2=1.493kN
R`1=R`2=0.5q`L=0.5×10.95×0.2=1.493kN
次楞自重荷载:q1=γGQ=1.35×0.01=0.014kN/m
梁左侧楼板传递给次楞荷载:
q2=γGΣNGk+1.4ΣNQk=
梁右侧楼板传递给次楞荷载:
q3=γGΣNGk+1.4ΣNQk=
q=max[1.493/1.0+0.014+0.787+0.128,1.493/1.0+0.014+0.787+0.128]=2.422kN/m
q`=max[1.095/1.0+0.01+0.606+0.095,1.095/1.0+0.01+0.606+0.095]=1.806kN/m
计算简图如下:
Mmax=0.1ql2=0.1×2.422×0.452=0.049kN·m
σmax=Mmax/W=0.049×106/31688=1.548N/mm2≤[f]=13N/mm2
Qmax=0.6ql=0.6×2.422×0.45=0.654kN
τmax=3Qmax/(2bh0)=3×0.654×1000/(2×45×65)=0.335N/mm2
τmax=0.335N/mm2≤[τ]=1.3N/mm2
νmax=0.677q`l4/(100EI)=0.677×1.806×4504/(100×9000×1029840)=0.054mm
νmax=0.054mm≤[ν]=min[L/250,5]=min[450/250,5]=1.8mm
4、支座反力计算
梁底次楞依次最大支座反力为:
R1=1.1×(1.493+0.014+0.787+0.128)×0.45=1.199kN
R2=1.1×(1.493+0.014+0.787+0.128)×0.45=1.199kN
R`1=1.1×(1.095+0.01+0.606+0.095)×0.45=0.894kN
R`2=1.1×(1.095+0.01+0.606+0.095)×0.45=0.894kN
六、主楞(横向水平钢管)验算
主楞自重荷载:q1=γGq=1.35×0.033=0.045kN/m
计算简图如下:
主楞弯矩图(kN·m)
Mmax=0.242kN·m
σmax=Mmax/W=0.242×106/4490=53.803N/mm2≤[f]=205N/mm2
主楞剪力图(kN)
Qmax=1.212kN
τmax=2Qmax/A=2×1.212×1000/424=5.719N/mm2
τmax=5.719N/mm2≤[τ]=125N/mm2
主楞变形图(mm)
νmax=0.311mm≤[ν]=min[L/250,5]=min[600/250,5]=2.4mm
设计值:支座反力依次为R1=1.212kN,R2=1.212kN
标准值:支座反力依次为R`1=0.904kN,R`2=0.904kN
纵向水平钢管仅起构造作用,可不用计算。
最大支座反力设计值Rmax=1.212kN
最大支座反力标准值R'max=0.904kN
1.05×Rmax=1.05×1.212=1.273kN,1.273kN≤0.8×12.0=9.6kN
在扭矩达到40~65N·m的情况下,双扣件能满足要求!
九、模板支架整体高宽比验算
H/Lb=3.15/15.2=0.207<3
l0=max[kμh,h+2a]=max[1.163×1.272×1800,1800+2×50]=2663mm
λ=l0/i=2663/15.9=168≤[λ]=210
长细比符合要求!
1) 模板支架风荷载标准值计算
μs=μst=φ×1.2=0.166×1.2=0.199
ωk=μzμsω0=1×0.199×0.3=0.06kN/m2
2) 整体侧向力标准值计算
ωk=μzμsω0=1×1.3×0.3=0.39kN/m2
1) 不组合风荷载时立杆从左到右受力为(Nut=γG∑NGk+1.4∑NQk):
+1.35×0.15×3.15=3.798kN
+1.35×0.15×3.15=3.798kN
Nut=max[R1,R2]=max[3.798, 3.798]=3.798kN
Me=Nut×e=3.798×0.055=0.209kN.m
1.05Nut/(φAKH)+Me/W=1.05×3.798×103/(0.251×424×1)+0.209×106/(4.49×103)=84.006N/mm2≤[f]=205N/mm2
2) 组合风荷载时立杆从左到右受力为(Nut=γG∑NGk+0.9×1.4∑NQk):
R1=3.515kN, R2=3.515kN
Nut=max[R1,R2]=max[3.515, 3.515]=3.515kN
Mw=1.4ωk lah2/10=1.4×0.06×0.45×1.82/10=0.012kN·m
Me=Nut×e=3.515×0.055=0.193kN.m
1.05Nut/(φAKH)+Me/W+Mw/W=
1.05×3.515×103/(0.251×424×1)+0.193×106/(4.49×103)+0.012×106/(4.49×103)=80.446N/mm2≤[f]=205N/mm2
4、立杆轴力标准值复核
立杆从左到右受力标准值为(N’ut=∑NGk+∑NQk):
R'1=2.877kN,R'2=2.877kN
立杆最大轴力标准值N'= Max[R'1,R'2] =2.877kN≤12kN
5、整体侧向力验算
F=max[AFωkla/La,ΣGk×2%]=max[8.7×0.39×0.45/29,(24+1.5)×0.11×15.2×0.45×2%]=0.384kN
σ=(1.05Nut+N1)/(φAKH)=
(1.05×3.515+0.013)×103/(0.251×424×1)=34.801N/mm2≤[f]=205N/mm2
201×450梁模板(扣件式,梁板立柱共用)计算书
设计简图如下:
重庆山坪上社小区景观绿化工程施工组织设计 取1.0m单位宽度计算。计算简图如下:
W=bh2/6=1000×152/6=37500mm3,I=bh3/12=1000×153/12=281250mm4
q=γGΣqGk+1.4ΣqQk=1.35×[0.3+(24+1.5)×0.45]×1.0+1.4×(1+2)×1.0=20.096kN/m
q静=γGΣqGk=1.35×[0.3+(24+1.5)×0.45]×1.0=15.896kN/m
q活=1.4ΣqQk=1.4×(1+2)×1.0=4.2kN/m
SL 642-2013 水利水电地下工程施工组织设计规范.pdf q`=ΣqGk+ΣqQk=[0.3+(24+1.5)×0.45]×1.0+(1+2)×1.0=14.775kN/m
Mmax=0.125q静L2+0.125q活L2=0.125×15.896×0.22+0.125×4.2×0.22=0.1kN·m
σmax=Mmax/W=0.1×106/37500=2.679N/mm2≤[f]=15N/mm2