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3、伸长量计算
1757.7?4.8681?0.9927??0.03483m
9?140?1950.007301744.91?12.6271?0.9473?LBC???0.08729m
9?140?1950.054141652.96?3.371?0.9950?LCD???0.0224m
9?140?1950.005061757.7?3.7961?0.9943?LFE???0.0272m
9?140?1950.005691747.72?14.8091?0.9384?LED???0.1021m
9?140?1950.06354?LAB?总伸长量: ?L?0.03483+0.08729+0.0224+0.0272+0.1021=0.2738m 与设计伸长值差:27.38-27.50=-0.12cm
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40米T梁边跨N2钢束伸长量计算
钢绞线根数:n=9根 1、拉力计算
钢绞线强度:Ryb?1860Mpa 系数:k?0.0015、u?0.25 钢绞线截面积:Ag?140mm2 钢绞线弹性模量:E?195Gpa 拉力:N?Ryb?0.75?Ag?n?1860?0.75?140?9?1757.7KN 2、分段终点力计算 AB BC CD x(m) ?(rad) 4.325 9.697 7.231 0 0.138981 0 kx?u? 0.00649 0.04929 0.01085 e?(kx?u?) 0.99353350 0.95190443 0.98921211 终点力(KN) 1746.33 1662.34 1644.41 GF FE ED x(m) ?(rad) 4.701 10.966 2.55 0 0.157307 0 kx?u? 0.00705 0.05578 0.00383 e?(kx?u?) 0.9929733 0.94575131 0.99618231 终点力(KN) 1745.35 1650.67 1644.36 3、伸长量计算
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1757.7?4.3251?0.9935??0.03099m
9?140?1950.006491746.33?9.6971?0.95190?LBC???0.06791m
9?140?1950.049291662.34?7.2311?0.9892?LCD???0.04869m
9?140?1950.010851757.7?4.7011?0.9930?LGF???0.03340m
9?140?1950.007051745.35?10.9661?0.9458?LFE???0.07570m
9?140?1950.055781650.67?2.551?0.9962?LED???0.01700m
9?140?1950.00383?LAB?总伸长量: ?L?0.03099+0.06791+0.04869+0.03340+0.07570+0.01700=0.2737m 与设计伸长值差:27.37-27.40=-0.03cm
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40米T梁边跨N3钢束伸长量计算
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钢绞线根数:n=9根 1、拉力计算
钢绞线强度:Ryb?1860Mpa 系数:k?0.0015、u?0.25 钢绞线截面积:Ag?140mm2 钢绞线弹性模量:E?195Gpa 拉力:N?Ryb?0.75?Ag?n?1860?0.75?140?9?1757.7KN 2、分段终点力计算
AB BC CD DE EF 3、伸长量计算
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x(m) ?(rad) 2.627 7.082 0.9145 0.9145 10.881 0 0.142122 0.131022 0.131022 0 kx?u? 0.003941 0.046154 0.034127 0.034127 0.016322 e?(kx?u?) 0.99606725 0.95489534 0.96644855 0.96644855 0.98381097 终点力(KN) 1750.79 1671.82 1615.73 1561.52 1536.24 KJ JI IH HG GF x(m) ?(rad) 2.844 8.678 0.9145 0.9145 3.7 0 0.17443 0.13102 0.13102 0 kx?u? 0.004266 0.056624 0.034127 0.034127 0.005550 e?(kx?u?) 0.99574309 0.94494925 0.96644855 0.96644855 0.99446537 终点力(KN) 1750.22 1653.87 1598.38 1544.75 1536.20 .
1757.7?2.6271?0.99607??0.01860m
9?140?1950.003941750.79?7.0821?0.95490?LBC???0.04932m
9?140?1950.046151671.82?0.91451?0.96645?LCD???0.00612m
9?140?1950.0034131615.73?0.91451?0.96645?LDE???0.00591m
9?140?1950.0034131561.52?10.8811?0.98381?LEF???0.06859m
9?140?1950.0163221757.7?2.8441?0.99574?LKJ???0.02032m
9?140?1950.0042661750.22?8.6781?0.94495?LJI???0.06010m
9?140?1950.0566241653.87?0.91451?0.96645?LIH???0.00605m
9?140?1950.0034131598.38?0.91451?0.96645?LHG???0.00585m
9?140?1950.0034131544.75?3.71?0.99446?LGF???0.02322m
9?140?1950.00555?LAB?总伸长量: ?L?0.01860+0.04932+0.00612+0.00591+0.06859++0.02032+0.06010+0.00605+0.00585+0.02322=0.2641m 与设计伸长值差:26.41-26.50=-0.09cm
40米T梁边跨N4钢束伸长量计算
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40米T梁张拉计算书
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