1、40米T梁张拉计算书40米T梁中跨N1钢束伸长量计算钢绞线根数:n7根1、 张拉力计算(m)(rad)终点力(KN)AB3.79600.0056940.9943221359.34BC14.8090.16530.0635390.9384381275.65CD1.04500.0015680.9984341273.66钢绞线强度:钢绞线截面积:钢绞线弹性模量:张拉力:系数:2、 分段终点力计算3、 伸长量计算N1钢束总伸长量:与设计伸长值差:27.28-27.50-0.22cm 40米T梁中跨N2钢束伸长量计算钢绞线根数:n7根1、 张拉力计算钢绞线强度:钢绞线截面积:钢绞线弹性模量:张拉力:系数:
2、2、分段终点力计算(m)(rad)终点力(KN)AB4.70100.00705150.9929731357.49BC10.9660.157310.0557760.9457511283.85CD3.98300.0059750.9940431276.203、伸长量计算N2钢束总伸长量:与设计伸长值差:27.2027.30-0.10cm 40米T梁中跨N3钢束伸长量计算钢绞线根数:n7根1、 张拉力计算钢绞线强度: 系数:钢绞线截面积: 钢绞线弹性模量:张拉力:2、 分段终点力计算(m)(rad)终点力(KN)AB2.84400.004270.995743091361.28BC8.6780.1744
3、30.056620.944949251286.341CD0.91450.131020.034130.966448551243.182DE0.91450.131020.034130.966448551201.472EF6.29900.009450.990596001190.1733、伸长量计算N3钢束总伸长量: 与设计伸长值差:26.3826.5-0.12cm40米T梁中跨N4钢束伸长量计算钢绞线根数:n7根1、张拉力计算钢绞线强度: 系数:钢绞线截面积: 钢绞线弹性模量:张拉力:2、 分段终点力计算(m)(rad)终点力(KN)AB1.5040.00000.002260.99774654136
4、4.02BC5.3550.21590.062000.939884691282.02CD10.00000.001500.998501121280.10DE0.91450.13100.034130.966448551237.15EF0.91450.13100.034130.966448551195.64FG9.9620.00000.014940.985168091177.913、伸长量计算 总伸长量: 与设计伸长值差:25.6425.80-0.16cm40米T梁边跨N1钢束伸长量计算钢绞线根数:n9根1、张拉力计算钢绞线强度: 系数: 钢绞线截面积: 钢绞线弹性模量:张拉力:2、分段终点力计算(m
5、)(rad)终点力(KN)AB4.86800.007300.992724591744.91BC12.6270.1407780.054140.947304151652.96CD3.3700.005060.994957761644.63(m)(rad)终点力(KN)FE3.79600.005690.994322181747.72ED14.8090.16530.063540.1640.13 3、伸长量计算总伸长量: 0.03483+0.08729+0.0224+0.0272+0.1021=0.2738m与设计伸长值差:27.3827.50-0.12cm 40米T梁边跨N2钢束伸长量计算钢绞线根数:n
6、9根1、张拉力计算钢绞线强度: 系数: 钢绞线截面积: 钢绞线弹性模量:张拉力:2、分段终点力计算(m)(rad)终点力(KN)AB4.32500.006490.993533501746.33BC9.6970.1389810.049290.951904431662.34CD7.23100.010850.989212111644.41(m)(rad)终点力(KN)GF4.70100.007050.99297331745.35FE10.9660.1573070.055780.945751311650.67ED2.5500.003830.996182311644.36 3、伸长量计算总伸长量: 0.
7、03099+0.06791+0.04869+0.03340+0.07570+0.01700=0.2737m与设计伸长值差:27.3727.40-0.03cm 40米T梁边跨N3钢束伸长量计算钢绞线根数:n9根1、张拉力计算钢绞线强度: 系数: 钢绞线截面积: 钢绞线弹性模量:张拉力:2、分段终点力计算(m)(rad)终点力(KN)AB2.62700.0039410.996067251750.79BC7.0820.1421220.0461540.954895341671.82CD0.91450.1310220.0341270.966448551615.73DE0.91450.1310220.03
8、41270.966448551561.52EF10.88100.0163220.983810971536.24(m)(rad)终点力(KN)KJ2.84400.0042660.995743091750.22JI8.6780.174430.0566240.944949251653.87IH0.91450.131020.0341270.966448551598.38HG0.91450.131020.0341270.966448551544.75GF3.700.0055500.994465371536.203、伸长量计算总伸长量: 0.01860+0.04932+0.00612+0.00591+0.
9、06859+0.02032+0.06010+0.00605+0.00585+0.02322=0.2641m与设计伸长值差:26.4126.50-0.09cm 40米T梁边跨N4钢束伸长量计算钢绞线根数:n9根1、张拉力计算钢绞线强度: 系数: 钢绞线截面积: 钢绞线弹性模量:张拉力:2、分段终点力计算(m)(rad)终点力(KN)ML1.50400.00225600.997746541753.74LK5.3550.2158620.06199810.939884691648.31KJ1.000.000.00150000.998501121645.84JI0.91450.1310220.03412
10、720.966448551590.62IH0.91450.1310220.03412720.966448551537.25HG1.65000.00247500.997528061533.45(m)(rad)终点力(KN)AB2.71900.0040790.995929811750.55BC2.8720.1151570.0330970.967444511693.56CD0.3000.0004500.999550101692.79DE0.91450.1310220.0341270.966448551636.00EF0.91450.1310220.0341270.966448551581.11FG2
11、0.41200.0306180.969845981533.433、伸长量计算总伸长量: 0.01941+0.02023+0.00207+0.00619+0.00599+0.12936+0.01075+0.03706+0.00670+0.00602+0.00582+0.01031=0.2598m与设计伸长值差:25.9826.00-0.02cm 40米T梁连续钢束伸长量计算钢绞线根数:n5根1、张拉力计算钢绞线强度: 系数:钢绞线截面积: 钢绞线弹性模量:张拉力:2、分段终点力计钢束分段(m)(rad)终点力(KN)N2钢束AB8.0000.01200.9880717964.85N1钢束AB0.
12、327600.00049140.9995087976.02 BC0.77370.0968660.02537700.9749423951.56 CD0.77370.0968660.02537700.9749423927.72 DE9.12500.01368750.9864057915.11N3钢束AB1400.0210000.979219956.213、伸长量计算N2钢束 N1钢束: N3钢束 与设计伸长值差 N2:11.38-11.4-0.02cm N1:4.94-15.0-0.06cm N3:19.82-19.80.02cm20米空心板梁钢束伸长量计算钢绞线根数:n7根1、张拉力计算钢绞线强
13、度: 系数:钢绞线截面积: 钢绞线弹性模量:2、分段终点力计张拉力: 钢束分段(m)(rad)终点力(KN)N2钢束AB1.075200.00161280.99838850 1273.94 BC2.41880.24430.06470320.93734563 1194.13 CD6.30600.0094590.99058560 1182.88 N1钢束AB0.605900.000908850.999091561274.84BC1.30860.0436330.012869710.987212751258.54CD7.885500.011828250.988241431243.74根据以下公式计算得N2钢束伸长量 L=2(0.00717+0.01564+0.03922)=0.062032=12.41mmN1钢束伸长量 L=2(0.00404+0.00868+0.05163)=0.064352=12.87mm