梁模板(扣件式,梁板立柱共用)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、工程属性平面图立面图四、面板验算W=bh2/6=1000×12×12/6=24000mm3,I=bh3/12=1000×12×12×12/12=144000mm4q1=0.9×max[1.2(G1k+(G2k+G3k)×h)+1.4Q2k,1.35(G1k+(G2k+G3k)×h)+1.4ψc Q2k]×b=0.9×max[1.2×(0.1+(24+1.5)×2.5)+1.4×2,1.35×(0.1+(24+1.5)×2.5)+1.4×0.7×2]×1=79.342kN/mq1静=0.9×1.35×[G1k+(G2k+G3k)×h]×b=0.9×1.35×[0.1+(24+1.5)×2.5]×1=77.578kN/mq1活=0.9×1.4×0.7×Q2k×b=0.9×1.4×0.7×2×1=1.764kN/mq2=[1×(G1k+(G2k+G3k)×h)]×b=[1×(0.1+(24+1.5)×2.5)]×1=63.85kN/m计算简图如下:1、强度验算M max=0.107q1静L2+0.121q1活L2=0.107×77.578×0.12+0.121×1.764×0.12=0.085kN·mσ=M max/W=0.085×106/24000=3.548N/mm2≤[f]=12.5N/mm2满足要求!2、挠度验算νmax=0.632q2L4/(100EI)=0.632×63.85×1004/(100×4500×144000)=0.062mm≤[ν]=L/250=100/250=0.4mm满足要求!3、支座反力计算设计值(承载能力极限状态)R1=R5=0.393q1静L+0.446q1活L=0.393×77.578×0.1+0.446×1.764×0.1=3.127kN R2=R4=1.143q1静L+1.223q1活L=1.143×77.578×0.1+1.223×1.764×0.1=9.083kN R3=0.928q1静L+1.142q1活L=0.928×77.578×0.1+1.142×1.764×0.1=7.401kN标准值(正常使用极限状态)R1'=R5'=0.393q2L=0.393×63.85×0.1=2.509kNR2'=R4'=1.143q2L=1.143×63.85×0.1=7.298kNR3'=0.928q2L=0.928×63.85×0.1=5.925kN五、小梁验算梁底面板传递给左边小梁线荷载:q1左=R1/b=3.127/1=3.127kN/m梁底面板传递给中间小梁最大线荷载:q1中=Max[R2,R3,R4]/b =Max[9.083,7.401,9.083]/1= 9.083kN/m梁底面板传递给右边小梁线荷载:q1右=R5/b=3.127/1=3.127kN/m小梁自重:q2=0.9×1.35×(0.3-0.1)×0.4/4 =0.024kN/m梁左侧模板传递给左边小梁荷载q3左=0.9×1.35×0.5×(2.5-0.25)=1.367kN/m梁右侧模板传递给右边小梁荷载q3右=0.9×1.35×0.5×(2.5-0.25)=1.367kN/m梁左侧楼板传递给左边小梁荷载q4左=0.9×Max[1.2×(0.5+(24+1.1)×0.25)+1.4×2,1.35×(0.5+(24+1.1)×0.25)+1.4×0.7×2]×(0.45-0.4/2)/2×1=1.249kN/m梁右侧楼板传递给右边小梁荷载q4右=0.9×Max[1.2×(0.5+(24+1.1)×0.25)+1.4×2,1.35×(0.5+(24+1.1)×0.25)+1.4×0.7×2]×((0.9-0.45)-0.4/2)/2×1=1.249kN/m左侧小梁荷载q左=q1左+q2+q3左+q4左=3.127+0.024+1.367+1.249=5.768kN/m中间小梁荷载q中= q1中+ q2=9.083+0.024=9.107kN/m右侧小梁荷载q右=q1右+q2+q3右+q4右=3.127+0.024+1.367+1.249=5.768kN/m小梁最大荷载q=Max[q左,q中,q右]=Max[5.768,9.107,5.768]=9.107kN/m正常使用极限状态:梁底面板传递给左边小梁线荷载:q1左'=R1'/b=2.509/1=2.509kN/m梁底面板传递给中间小梁最大线荷载:q1中'=Max[R2',R3',R4']/b =Max[7.298,5.925,7.298]/1= 7.298kN/m梁底面板传递给右边小梁线荷载:q1右'=R5'/b=2.509/1=2.509kN/m小梁自重:q2'=1×(0.3-0.1)×0.4/4 =0.02kN/m梁左侧模板传递给左边小梁荷载q3左'=1×0.5×(2.5-0.25)=1.125kN/m梁右侧模板传递给右边小梁荷载q3右'=1×0.5×(2.5-0.25)=1.125kN/m梁左侧楼板传递给左边小梁荷载q4左'=[1×(0.5+(24+1.1)×0.25)]×(0.45-0.4/2)/2×1=0.847kN/m梁右侧楼板传递给右边小梁荷载q4右'=[1×(0.5+(24+1.1)×0.25)]×((0.9-0.45)-0.4/2)/2×1=0.847kN/m左侧小梁荷载q左'=q1左'+q2'+q3左'+q4左'=2.509+0.02+1.125+0.847=4.501kN/m 中间小梁荷载q中'= q1中'+ q2'=7.298+0.02=7.318kN/m右侧小梁荷载q右'=q1右'+q2'+q3右'+q4右' =2.509+0.02+1.125+0.847=4.501kN/m 小梁最大荷载q'=Max[q左',q中',q右']=Max[4.501,7.318,4.501]=7.318kN/m为简化计算,按简支梁和悬臂梁分别计算,如下图:1、抗弯验算M max=max[0.125ql12,0.5ql22]=max[0.125×9.107×0.32,0.5×9.107×0.32]=0.41kN·mσ=M max/W=0.41×106/83333=4.918N/mm2≤[f]=11.44N/mm2满足要求!2、抗剪验算V max=max[0.5ql1,ql2]=max[0.5×9.107×0.3,9.107×0.3]=2.732kNτmax=3V max/(2bh0)=3×2.732×1000/(2×50×100)=0.82N/mm2≤[τ]=1.232N/mm2 满足要求!3、挠度验算ν1=5q'l14/(384EI)=5×7.318×3004/(384×7040×416.667×104)=0.026mm≤[ν]=l1/250=300/250=1.2mmν2=q'l24/(8EI)=7.318×3004/(8×7040×416.667×104)=0.253mm≤[ν]=2l2/250=2×300/250=2.4mm满足要求!4、支座反力计算承载能力极限状态R max=[qL1,0.5qL1+qL2]=max[9.107×0.3,0.5×9.107×0.3+9.107×0.3]=4.098kN 同理可得:梁底支撑小梁所受最大支座反力依次为R1=2.596kN,R2=4.098kN,R3=3.341kN,R4=4.098kN,R5=2.596kN正常使用极限状态R max'=[q'L1,0.5q'L1+q'L2]=max[7.318×0.3,0.5×7.318×0.3+7.318×0.3]=3.293kN 同理可得:梁底支撑小梁所受最大支座反力依次为R1'=2.025kN,R2'=3.293kN,R3'=2.675kN,R4'=3.293kN,R5'=2.025kN六、主梁验算1、抗弯验算主梁弯矩图(kN·m)σ=M max/W=0.238×106/4730=50.398N/mm2≤[f]=205N/mm2 满足要求!2、抗剪验算主梁剪力图(kN)V max=5.769kNτmax=2V max/A=2×5.769×1000/450=25.638N/mm2≤[τ]=125N/mm2满足要求!3、挠度验算主梁变形图(mm)νmax=0.057mm≤[ν]=L/250=300/250=1.2mm满足要求!4、支座反力计算承载能力极限状态支座反力依次为R1=0.291kN,R2=8.656kN,R3=8.656kN,R4=0.291kN 正常使用极限状态支座反力依次为R1'=0.241kN,R2'=6.896kN,R3'=6.896kN,R4'=0.241kN 七、2号主梁验算主梁自重忽略不计,主梁2根合并,其主梁受力不均匀系数=0.6P=max[R2,R3]×0.6=Max[8.656,8.656]×0.6=5.194kN,P'=max[R2',R3']×0.6=Max[6.896,6.896]×0.6=4.138kN1、抗弯验算2号主梁弯矩图(kN·m)σ=M max/W=0.545×106/5080=107.362N/mm2≤[f]=205N/mm2满足要求!2、抗剪验算2号主梁剪力图(kN)V max=3.376kNτmax=2V max/A=2×3.376×1000/489=13.809N/mm2≤[τ]=125N/mm2满足要求!3、挠度验算2号主梁变形图(mm)νmax=0.411mm≤[ν]=L/250=600/250=2.4mm满足要求!4、支座反力计算极限承载能力状态支座反力依次为R1=7.012kN,R2=11.167kN,R3=11.167kN,R4=7.012kN 立柱所受主梁支座反力依次为P2=11.167/0.6=18.612kN,P3=11.167/0.6=18.612kN八、纵向水平钢管验算1414计算简图如下:1、抗弯验算纵向水平钢管弯矩图(kN·m)σ=M max/W=0.031×106/4730=6.46N/mm2≤[f]=205N/mm2 满足要求!2、抗剪验算纵向水平钢管剪力图(kN)V max=0.189kNτmax=2V max/A=2×0.189×1000/450=0.841N/mm2≤[τ]=125N/mm2满足要求!3、挠度验算纵向水平钢管变形图(mm)νmax=0.026mm≤[ν]=L/250=600/250=2.4mm满足要求!4、支座反力计算支座反力依次为R1=0.393kN,R2=0.626kN,R3=0.626kN,R4=0.393kN 同理可得:两侧立柱所受支座反力依次为R1=0.626kN,R4=0.626kN 九、可调托座验算1、扣件抗滑移验算两侧立柱最大受力N=max[R1,R4]=max[0.626,0.626]=0.626kN≤1×8=8kN单扣件在扭矩达到40~65N·m且无质量缺陷的情况下,单扣件能满足要求!2、可调托座验算可调托座最大受力N=max[P2,P3]=18.612kN≤[N]=30kN满足要求!十、立柱验算l0=h=1800mmλ=l0/i=1800/15.9=113.208≤[λ]=150长细比满足要求!查表得,υ=0.4962、风荷载计算M w=0.9×υc×1.4×ωk×l a×h2/10=0.9×0.9×1.4×0.237×0.6×1.82/10=0.052kN·m3、稳定性计算根据《建筑施工模板安全技术规范》JGJ162-2008,荷载设计值q1有所不同:1)面板验算q1=0.9×[1.2×(0.1+(24+1.5)×2.5)+1.4×0.9×2]×1=71.226kN/m2)小梁验算q1=max{2.811+0.9×1.2×[(0.3-0.1)×0.4/4+0.5×(2.5-0.25)]+0.9×[1.2×(0.5+(24+1.1)×0.25)+1. 4×0.9×1]×max[0.45-0.4/2,(0.9-0.45)-0.4/2]/2×1,8.159+0.9×1.2×(0.3-0.1)×0.4/4}=8.181kN/m同上四~八计算过程,可得:R1=0.572kN,P2=16.656kN,P3=16.656kN,R4=0.572kN立柱最大受力N w=max[R1+N边1,P2,P3,R4+N边2]+0.9×1.2×0.15×(5.6-2.5)+M w/l b =max[0.572+0.9×[1.2×(0.5+(24+1.1)×0.25)+1.4×0.9×1]×(0.9+0.45-0.4/2)/2×0.6,16.656,16.656,0.572+0.9×[1.2×(0.5+(24+1.1)×0.25)+1.4×0.9×1]×(0.9+0.9-0.45-0.4/2)/2×0.6]+0.502+0. 052/0.9=17.217kNf=N/(υA)+M w/W=17216.587/(0.496×450)+0.052×106/4730=88.129N/mm2≤[f]=205N/mm2满足要求!十一、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=5.6/8.1=0.691<3满足要求,不需要进行抗倾覆验算!十二、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h t0u m =2[(a+h0)+(b+h0)]=2320mmF=(0.7βh f t+0.25σpc,)ηu m h0=(0.7×1×0.911+0.25×0)×1×2320×480/1000=710.143kN≥F1=17.217kN m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=[(300)×(300)/(100×100)]1/2=3,A ln=ab=10000mm2F=1.35βcβl f c A ln=1.35×1×3×9.686×10000/1000=392.283kN≥F1=17.217kN 满足要求!。