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8.9M高 模板计算书_

8.9M高支模板模板(扣件式)计算书计算依据:1、《建筑施工模板安全技术规范》JGJ162-20082、《建筑施工扣件式钢管脚手架安全技术规范》JGJ 130-20113、《混凝土结构设计规范》GB 50010-20104、《建筑结构荷载规范》GB 50009-20125、《钢结构设计规范》GB 50017-2003一、工程属性模板设计平面图模板设计剖面图(模板支架纵向)模板设计剖面图(模板支架横向)四、面板验算W=bh2/6=1000×15×15/6=37500mm3,I=bh3/12=1000×15×15×15/12=281250mm4承载能力极限状态q1=0.9×max[1.2(G1k +(G2k+G3k)×h)+1.4×Q1k ,1.35(G1k+(G2k+G3k)×h)+1.4×0.7×Q1k]×b=0.9×max[1.2×(0.1+(24+1.1)×0.18)+1.4×2.5,1.35×(0.1+(24+1.1)×0.18)+1.4×0.7×2.5] ×1=8.137kN/mq2=0.9×1.2×G1k×b=0.9×1.2×0.1×1=0.108kN/mp=0.9×1.4×Q1k=0.9×1.4×2.5=3.15kN正常使用极限状态q=(γG(G1k +(G2k+G3k)×h))×b =(1×(0.1+(24+1.1)×0.18))×1=4.618kN/m 计算简图如下:1、强度验算M1=q1l2/8=8.137×0.182/8=0.033kN·mM2=q2L2/8+pL/4=0.108×0.182/8+3.15×0.18/4=0.142kN·mM max=max[M1,M2]=max[0.033,0.142]=0.142kN·mσ=M max/W=0.142×106/37500=3.792N/mm2≤[f]=9.68N/mm2满足要求!2、挠度验算νmax=5ql4/(384EI)=5×4.618×1804/(384×4680×281250)=0.048mmν=0.048mm≤[ν]=L/400=180/400=0.45mm满足要求!五、小梁验算11k2k3k1k1k+(G2k+G3k)×h)+1.4×0.7×Q1k]×b=0.9×max[1.2×(0.3+(24+1.1)×0.18)+1.4×2.5,1.35×(0.3+(24+1.1)×0.18)+1.4×0.7×2.5]×0.18=1.504kN/m因此,q1静=0.9×1.2×(G1k+(G2k+G3k)×h)×b=0.9×1.2×(0.3+(24+1.1)×0.18)×0.18=0.937kN/mq1活=0.9×1.4×Q1k×b=0.9×1.4×2.5×0.18=0.567kN/mq2=0.9×1.2×G1k×b=0.9×1.2×0.3×0.18=0.058kN/mp=0.9×1.4×Q1k=0.9×1.4×2.5=3.15kN计算简图如下:1、强度验算M1=0.1q1静L2+0.117q1活L2=0.1×0.937×0.92+0.117×0.567×0.92=0.13kN·mM2=max[0.08q2L2+0.213pL,0.1q2L2+0.175pL]=max[0.08×0.058×0.92+0.213×3.15×0.9,0.1×0.058×0.92+0.175×3.15×0.9]=0.608kN·m M3=max[q1L12/2,q2L12/2+pL1]=max[1.504×0.152/2,0.058×0.152/2+3.15×0.15]=0.473kN·mM max=max[M1,M2,M3]=max[0.13,0.608,0.473]=0.608kN·mσ=M max/W=0.608×106/54000=11.252N/mm2≤[f]=13N/mm2满足要求!2、抗剪验算V1=0.6q1静L+0.617q1活L=0.6×0.937×0.9+0.617×0.567×0.9=0.821kNV2=0.6q2L+0.675p=0.6×0.058×0.9+0.675×3.15=2.158kNV3=max[q1L1,q2L1+p]=max[1.504×0.15,0.058×0.15+3.15]=3.159kNV max=max[V1,V2,V3]=max[0.821,2.158,3.159]=3.159kNτmax=3V max/(2bh0)=3×3.159×1000/(2×40×90)=1.316N/mm2≤[τ]=1.4N/mm2满足要求!3、挠度验算q=(γG(G1k +(G2k+G3k)×h))×b=(1×(0.3+(24+1.1)×0.18))×0.18=0.867kN/m挠度,跨中νmax=0.677qL4/(100EI)=0.677×0.867×9004/(100×9000×243×104)=0.176mm≤[ν]=L/400=900/400=2.25mm;悬臂端νmax=ql14/(8EI)=0.867×1504/(8×9000×243×104)=0.003mm≤[ν]=2×l1/400=2×150/400=0.75mm满足要求!六、主梁验算q1=0.9×max[1.2(G1k +(G2k+G3k)×h)+1.4Q1k,1.35(G1k+(G2k+G3k)×h)+1.4×0.7×Q1k]×b=0.9×max[1.2×(0.5+(24+1.1)×0.18)+1.4×1.5,1.35×(0.5+(24+1.1)×0.18)+1.4×0.7×1.5]×0.18=1.336kN/mq1静=0.9×1.35×(G1k +(G2k+G3k)×h)×b=0.9×1.35×(0.5+(24+1.1)×0.18)×0.18=1.097kN/mq1活=0.9×1.4×0.7×Q1k×b =0.9×1.4×0.7×1.5×0.18=0.238kN/mq2=(γG(G1k +(G2k+G3k)×h))×b=(1×(0.5+(24+1.1)×0.18))×0.18=0.903kN/m承载能力极限状态按三等跨连续梁,R max=(1.1q1静+1.2q1活)L=1.1×1.097×0.9+1.2×0.238×0.9=1.344kN按悬臂梁,R1=q1l1=1.336×0.15=0.2kNR=max[R max,R1]=1.344kN;正常使用极限状态按三等跨连续梁,R'max=1.1q2L=1.1×0.903×0.9=0.894kN按悬臂梁,R'1=q2l1=0.903×0.15=0.135kNR'=max[R'max,R'1]=0.894kN;计算简图如下:主梁计算简图一主梁计算简图二2、抗弯验算主梁弯矩图一(kN·m)主梁弯矩图二(kN·m)σ=M max/W=0.603×106/4120=146.431N/mm2≤[f]=205N/mm2 满足要求!3、抗剪验算主梁剪力图一(kN)主梁剪力图二(kN)τmax=2V max/A=2×4.436×1000/384=23.103N/mm2≤[τ]=125N/mm2 满足要求!4、挠度验算主梁变形图一(mm)主梁变形图二(mm)跨中νmax=1.022mm≤[ν]=900/400=2.25mm悬挑段νmax =0.596mm ≤[ν]=2×150/400=0.75mm 满足要求! 5、支座反力计算 承载能力极限状态 图一支座反力依次为R 1=4.768kN ,R 2=7.047kN ,R 3=7.405kN ,R 4=3.628kN 图二支座反力依次为R 1=4.18kN ,R 2=7.244kN ,R 3=7.244kN ,R 4=4.18kN七、扣件抗滑移验算c c 满足要求!八、立柱验算剪刀撑设置普通型 立柱顶部步距h d (mm) 1300 立柱伸出顶层水平杆中心线至支撑点的长度a(mm)200顶部立柱计算长度系数μ11.386非顶部立柱计算长度系数μ2 1.755 立柱钢管截面类型(mm) Φ48×2.7 立柱钢管计算截面类型(mm) Φ48×2.7 钢材等级Q235 立柱截面面积A(mm 2) 384 立柱截面回转半径i(mm) 16 立柱截面抵抗矩W(cm 3) 4.12 抗压强度设计值[f](N/mm 2)205支架自重标准值q(kN/m)0.151、长细比验算顶部立柱段:l 01=kμ1(h d +2a)=1×1.386×(1300+2×200)=2356mm 非顶部立柱段:l 0=kμ2h =1×1.755×1500=2632mm λ=max[l 01,l 0]/i=2632.5/16=164.531≤[λ]=210 满足要求! 2、立柱稳定性验算根据《建筑施工扣件式钢管脚手架安全技术规范》JGJ130-2011,荷载设计值q1有所不同:小梁验算q1=1×[1.2×(0.5+(24+1.1)×0.18)+1.4×1]×0.18 = 1.336kN/m同上四~六步计算过程,可得:R1=4.771kN,R2=7.25kN,R3=7.411kN,R4=4.183kN顶部立柱段:l01=kμ1(h d+2a)=1.185×1.386×(1300+2×200)=2792.097mmλ1=l01/i=2792.097/16=174.506查表得,φ=0.235不考虑风荷载:N1 =Max[R1,R2,R3,R4]=Max[4.771,7.25,7.411,4.183]=7.411kNf=N1/(ΦA)=7411/(0.235×384)=82.125N/mm2≤[f]=205N/mm2满足要求!非顶部立柱段:l0=kμ2h =1.185×1.755×1500=3119.512mmλ=l0/i=3119.512/16=194.97查表得,φ1=0.191不考虑风荷载:N=Max[R1,R2,R3,R4]+1×γG×q×H=Max[4.771,7.25,7.411,4.183]+1×1.2×0.15×8.85=9.004k Nf=N/(φ1A)=9.004×103/(0.191×384)=122.764N/mm2≤[σ]=205N/mm2满足要求!九、高宽比验算根据《建筑施工扣件式钢管脚手架安全技术规范》JGJ130-2011 第6.9.7:支架高宽比不应大于3H/B=8.85/24=0.369<3满足要求,不需要进行抗倾覆验算!十、立柱支承面承载力验算11、受冲切承载力计算根据《混凝土结构设计规范》GB50010-2010第6.5.1条规定,见下表可得:βh=1,f t=0.911N/mm2,η=1,h0=h-20=380mm,u m =2[(a+h0)+(b+h0)]=9920mmF=(0.7βh f t+0.25σpc,)ηu m h0=(0.7×1×0.911+0.25×0)×1×9920×380/1000=2403.874kN≥F1=9.004kNm满足要求!2、局部受压承载力计算根据《混凝土结构设计规范》GB50010-2010第6.6.1条规定,见下表c cβl=(A b/A l)1/2=[(a+2b)×(b+2b)/(ab)]1/2=[(4400)×(600)/(4000×200)]1/2=1.817,A ln=ab=800000mm2F=1.35βcβl f c A ln=1.35×1×1.817×9.686×800000/1000=19003.132kN≥F1=9.004kN 满足要求!。

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