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700x1600框架梁模板计算书(木胶合板)

梁5KZL6(700x1600)模板(扣件式)计算书一、工程属性二、荷载设计(kN/m2)三、模板体系设计新浇混凝土楼板立柱间距平面图立面图四、面板验算取单位宽度1000mm,按四等跨连续梁计算,计算简图如下:W=bh2/6=1000×15×15/6=37500mm3,I=bh3/12=1000×15×15×15/12=281250mm4q1=0.9max[1.2(G1k+ (G2k+G3k)×h)+1.4Q1k,1.35(G1k+(G2k+G3k)×h)+1.4×0.7Q1k]×b=0.9max[1.2×(0.1+(24+1.5)×1.6)+1.4×2,1.35×(0.1+(24+1.5)×1.6)+1.4×0.7×2]×1=51.46kN/mq1静=0.9×1.35×[G1k+(G2k+G3k)×h]×b=0.9×1.35×[0.1+(24+1.5)×1.6]×1=49.69kN/m=0.9×1.4×0.7×Q2k×b=0.9×1.4×0.7×2×1=1.76kN/mq1q2=(G1k+ (G2k+G3k)×h)×b=[0.1+(24+1.5)×1.6]×1=40.9kN/m1、强度验算M max=-0.107q1静L2+0.121q1活L2=-0.107×49.69×0.172+0.121×1.76×0.172=0.16kN·mσ=M max/W=0.16×106/37500=4.17N/mm2≤[f]=15N/mm2满足要求!2、挠度验算νmax=0.632qL4/(100EI)=0.632×40.9×1754/(100×10000×281250)=0.086mm≤[ν]=l/400=175/400=0.44mm满足要求!3、支座反力计算设计值(承载能力极限状态)R1=R5=0.393 q1静l +0.446 q1活l=0.393×49.69×0.17+0.446×1.76×0.17=3.56kN R2=R4=1.143 q1静l +1.223 q1活l=1.143×49.69×0.17+1.223×1.76×0.17=10.32kN R3=0.928 q1静l +1.142 q1活l=0.928×49.69×0.17+1.142×1.76×0.17=8.42kN标准值(正常使用极限状态)R1'=R5'=0.393 q2l=0.393×40.9×0.17=2.81kNR2'=R4'=1.143 q2l=1.143×40.9×0.17=8.18kNR3'=0.928 q2l=0.928×40.9×0.17=6.64kN五、小梁验算为简化计算,按四等跨连续梁和悬臂梁分别计算,如下图:q1=max{3.56+0.9×1.35×[(0.3-0.1)×0.7/4+0.5×(1.6-0.18)]+0.9max[1.2×(0.5+(24+1.1)×0.18)+1.4×1,1.35×(0.5+(24+1.1)×0.18)+1.4×0.7×1]×max[0.6-0.7/2,(1.2-0.6)-0.7/2]/2×1,10.32+0.9×1.35×(0.3-0.1)×0.7/4}=10.36kN/mq2=max[2.81+(0.3-0.1)×0.7/4+0.5×(1.6-0.18)+(0.5+(24+1.1)×0.18)×max[0.6-0.7/2,(0.5-0.6)-0.7/2]/2×1,8.18+(0.3-0.1)×0.7/4]=8.22kN/m1、抗弯验算M max=max[0.107q1l12,0.5q1l22]=max[0.107×10.36×0.52,0.5×10.36×0.12]=0.28kN·mσ=M max/W=0.28×106/37330=7.42N/mm2≤[f]=15.44N/mm2满足要求!2、抗剪验算V max=max[0.607q1l1,q1l2]=max[0.607×10.36×0.5,10.36×0.1]=3.144kN τmax=3V max/(2bh0)=3×3.144×1000/(2×35×80)=1.68N/mm2≤[τ]=1.78N/mm2 满足要求!3、挠度验算ν1=0.632q2l14/(100EI)=0.632×8.22×5004/(100×9350×1493300)=0.23mm≤[ν]=l/400=500/400=1.25mmν2=q2l24/(8EI)=8.22×1004/(8×9350×1493300)=0.01mm≤[ν]=l/400=100/400=0.25mm满足要求!4、支座反力计算梁头处(即梁底支撑小梁悬挑段根部)承载能力极限状态R max=max[1.143q1l1,0.393q1l1+q1l2]=max[1.143×10.36×0.5,0.393×10.36×0.5+10.36×0.1]=5.92kN同理可得,梁底支撑小梁所受最大支座反力依次为R1=R5=2.8kN,R2=R4=5.92kN,R3=4.83kN正常使用极限状态R'max=max[1.143q2l1,0.393q2l1+q2l2]=max[1.143×8.22×0.5,0.393×8.22×0.5+8.22×0.1]=4.7kN同理可得,梁底支撑小梁所受最大支座反力依次为R'1=R'5=2.37kN,R'2=R'4=4.7kN,R'3=3.82kN六、主梁验算主梁自重忽略不计,计算简图如下:1、抗弯验算主梁弯矩图(kN·m)σ=M max /W =0.916×106/5080=180.3N/mm 2≤[f]=205N/mm 2 满足要求! 2、抗剪验算主梁剪力图(kN)V max =6.906kNτmax =2V max /A=2×6.906×1000/489=28.24N/mm 2≤[τ]=125N/mm 2 满足要求!主梁变形图(mm)νmax=0.4mm≤[ν]=l/400=600/400=1.5mm满足要求!4、扣件抗滑计算R=max[R1,R3]=1.81kN≤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!同理可知,左侧立柱扣件受力R=1.81kN≤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!七、立柱验算λ=h/i=1600/15.8=101.27≤[λ]=150长细比满足要求!查表得,φ=0.631、风荷载计算M w=0.92×1.4×ωk×l a×h2/10=0.92×1.4×0.22×0.5×1.62/10=0.03kN·m2、稳定性计算根据《建筑施工模板安全技术规范》公式5.2.5-14,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)×1.6)+0.9×1.4×2]×1=46.44kN/mq1=max{3.21+(0.3-0.1)×0.7/4+0.9×[1.2×(0.5+(24+1.1)×0.18)+0.9×1.4×1]×max[0.6-0.7/ 2,(0.5-0.6)-0.7/2]/4×1,9.32+(0.3-0.1)×0.7/4}=9.36kN/m同上四~六计算过程,可得:R1=1.67kN,R2=16.94kN,R3=1.67kN立柱最大受力N w=max[R1+N边1,R2,R3+N边2]+M w/l b=max[1.67+0.9×[1.2×(0.75+(24+1.1)×0.18)+0.9×1.4×1]×(1+0.6-0.7/2)/2×0.9,16.94,1.67+0.9×[1.2×(0.75+(24+1.1)×0.18)+0.9×1.4×1]×(1+0.5-0.6-0.7/2)/2×0.9]+0.03/1.2=16.97kNf=N/(φA)+M w/W=16970.66/(0.63×489)+0.03×106/5080=61.73N/mm2≤[f]=205N/mm2满足要求!八、可调托座验算由"主梁验算"一节计算可知可调托座最大受力N=max[R2]=18.64kN≤[N]=30kN满足要求!。

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