施工组织设计下载简介
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建筑施工卸料平台施工方案一、设计概况·································2
二、设计依据·································2
三、次梁设计·································2
xxx高层住宅楼施工组织设计四、主梁设计·································4
五、铺板设计·································5
六、钢丝绳验算·······························6
七、吊环设计·································7
八、钢平台安装·······························7
九、附制安图·································8
钢平台设计尺寸长3m、宽2m,主梁用工字钢、次梁用槽钢制作,上铺50mm厚木板,用钢丝绳斜拉固定在剪力墙或梁上。允许荷载:施工荷载1.5KN、集中荷载5KN.
次梁选用槽钢14制作,3m长钢平台设4道次梁,次梁槽钢焊接在主梁凹槽内(主梁侧加100×60×8垫板),其间距为1m。14槽钢截面特性为重量0.1KN/m,WX=39.7cm3,h=100mm,t=8.5mm
铺木板=0.4KN/m2
施工均布活荷载=1.5KN/m2
永久荷载分项系数=1.2
可变荷载分项系数=1.4
木跳板50mm厚=0.4×1×1.2=0.48KN/m
14槽钢=0.1×1.2=0.12KN/m
施工均布荷载P=5×1.4=7KN
M=(1/8)ql2+(1/4)P1=(1/8)×2.7×22+(1/4)×7×2=4.85KN·m
M/(VX×WX)≤f,VX=1.2
δ=(4.85×106)/(1.05×39.7×103)=116N/mm2<f=215N/mm2满足要求;
MX/(Ab×Wx)≤f,ψb={570tb×/(1×h)}×(235/235)=1.16
Ab={(570×8.5×48)/(2000×100)}×(235/235)
M/(Ab,×WX)=(4.85×106)/(0.777×3.97×103)157N/mm2<f=215N/mm2
主梁选用工字钢16制作,其截面特性为重量0.123KN/m,
Wx=61.7×103,h=16mm,b=53mm,t=9mm
主梁均布荷载:Σ1260.123×1.2=0.148KN/m
栏杆、密目安全网:0.115×1.2=0.138KN/m
300×300mm木挡板:0.072×1.2=0.068KN/m
Σq=0.37KN/m
P1=(1/2)×{(0.48+2.1)/2}×2+(1/2)×0.12×2=1.41KN
P2=(1/2)×2.7×2=2.7KN
M=(1/8)×0.37×32+2.7×1+(1/4)×7×3=8.37KN·m
RA=RB=(1/2)×0.37v3+1.41+2.7=4.7KN
MX(VX×MX)=(83.7×106)/(1.05×61.7×103)=129N/mm2<f=215N/mm2,满足要求;
MX/(Ab×Wx)=(8.37×106)/(0.925×61.7×103)=147N<f=215N/mm2
ψb=(570×9×53)/(1000×126)×(235/235)=2.16
选用3m长50mm厚松木板,板宽不小于250mm,板端头用螺栓与槽钢相固定。
某大厦工程安装施工组织设计Q=(0.4×1×1.2)+(1.5×1×1.4)=2.58KN/m
P=5×1.4=7KN
M=(1/8)ql2+(1/4)P1=(1/8)×2.58×12+(1/4)×7×1=2.07KN·m
δm=M/Wn≤fm=17N/mm2
W=(1/6)bh2=(1/6)×100×52=417cm3
δm=(2.07×106)/(4.17×105)=5N/mm2≤fm=17N/mm2,满足要求;
T/CECS 10035-2019 绿色建材评价 金属复合装饰材料.pdfT=P1sina=4.7/0.707=6.65KN
用¢14mm、公称抗拉强度1550N/mm2的6×19钢丝绳作捆扎吊索,查表得钢丝绳的钢丝破坏断拉力总和为Fg=112.0KN。
查表得钢丝绳的安全系数K=6,钢丝绳的换算系数a=0.85。