40米T梁张拉计算书.docx
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40米T梁张拉计算书
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:
n=7根
1、张拉力计算
b钢绞线强度:
R1860Mpa
y
钢绞线截面积:
2
A(140140140)/3140mm
g
钢绞线弹性模量:
E(195195195)/3195Gpa
b
张拉力:
NR0.75An18600.7514071367.1KN
yg
系数:
k0.0015、u0.25
2、分段终点力计算
x(m)(rad)kxue(kxu)终点力(KN)
AB3.79600.0056940.9943221359.34
BC14.8090.16530.0635390.9384381275.65
CD1.04500.0015680.9984341273.66
3、伸长量计算
1367.13.79610.9943
L0.0272m
AB
71401950.00569
1359.3414.80910.9384
L0.1021m
BC
71401950.063539
1275.71.04510.9984
L0.0071m
CD
71401950.00157
L0.02720.10210.00710.1364m
N1钢束总伸长量:
L20.13640.2728m
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:
n=7根
1、张拉力计算
b钢绞线强度:
R1860Mpa
y
钢绞线截面积:
140140140
2
A140mm
g
3
钢绞线弹性模量:
194196198
E195Gpa
3
b
张拉力:
NR0.75An18600.7514071367.1KN
yg
系数:
k0.0015、u0.25
2、分段终点力计算
x(m)(rad)kxu
(kxu)
e终点力(KN)
AB4.70100.00705150.9929731357.49
BC10.9660.157310.0557760.9457511283.85
CD3.98300.0059750.9940431276.20
3、伸长量计算
1367.14.70110.9930
L0.03339m
AB
71401950.00705
1357.510.96610.9458
L0.07569m
BC
71401950.05577
1283.93.98310.9939
L0.02685m
CD
71401950.00598
L0.033390.075690.026850.1360m
N2钢束总伸长量:
L20.13600.2720m
与设计伸长值差:
27.20-27.30=-0.10cm
40米T梁中跨N3钢束伸长量计算
钢绞线根数:
n=7根
1、张拉力计算
b
钢绞线强度:
R1860Mpa系数:
k0.0015、u0.25
y
钢绞线截面积:
2
A140mm钢绞线弹性模量:
E195Gpa
g
b
张拉力:
NR0.75An18600.7514071367.1KN
yg
2、分段终点力计算
x(m)(rad)kxue(kxu)终点力(KN)
AB2.84400.004270.995743091361.28
BC8.6780.174430.056620.944949251286.341
CD0.91450.131020.034130.966448551243.182
DE0.91450.131020.034130.966448551201.472
EF6.29900.009450.990596001190.173
3、伸长量计算
1367.12.84410.9957
L0.0205m
AB
71401950.00427
1361.288.67810.9450
L0.0600m
BC
71401950.056621286.340.914510.9664
L0.0061m
CD
71401950.03413
1243.180.914510.9664
L0.0059m
DE
71401950.03413
1201.476.29910.9906
L0.0394m
EF
71401950.00945
L0.02050.06000.00610.00590.03940.1319
N3钢束总伸长量:
L20.13190.2638m
与设计伸长值差:
26.38-26.5=-0.12cm
40米T梁中跨N4钢束伸长量计算
钢绞线根数:
n=7根
1、张拉力计算
b
钢绞线强度:
R1860Mpa系数:
k0.0015、u0.25
y
钢绞线截面积:
2
A140mm钢绞线弹性模量:
E195Gpa
g
b
张拉力:
NR0.75An18600.7514071367.1KN
yg
2、分段终点力计算
x(m)(rad)kxu
e终点力(KN)
(kxu)
AB1.5040.00000.002260.997746541364.02
BC5.3550.21590.062000.939884691282.02
CD10.00000.001500.998501121280.10
DE0.91450.13100.034130.966448551237.15
EF0.91450.13100.034130.966448551195.64
FG9.9620.00000.014940.985168091177.91
3、伸长量计算
1367.11.50410.9977
L0.0109m
AB
71401950.00226
1364.025.35510.93988
L0.0371m
BC
71401950.06200
1282.021.010.9985
L0.0067m
CD
71401950.00150
1280.10.914510.9664
L0.0060m
DE
71401950.03413
1237.150.914510.9664
L0.0058m
EF
71401950.03413
1195.649.96210.9852
L0.0617m
EF
71401950.01494
L0.01090.03710.00670.00600.00580.06170.1282m
总伸长量:
20.12820.2564m与设计伸长值差:
25.64-25.80=-0.16cm
40米T梁边跨N1钢束伸长量计算
钢绞线根数:
n=9根
1、张拉力计算
b
钢绞线强度:
R1860Mpa系数:
k0.0015、u0.25
y
钢绞线截面积:
2
A140mm钢绞线弹性模量:
E195Gpa
g
b
张拉力:
NR0.75An18600.7514091757.7KN
yg
2、分段终点力计算
x(m)(rad)kxu
e终点力(KN)
(kxu)
x(m)(rad)kxu
e终点力(KN)
(kxu)
AB4.86800.007300.992724591744.91FE3.79600.005690.994322181747.72
BC12.6270.1407780.054140.947304151652.96ED14.8090.16530.063540.9384379571640.13
CD3.3700.005060.994957761644.63
3、伸长量计算
1757.74.86810.9927
L0.03483m
AB
91401950.00730
1744.9112.62710.9473
L0.08729m
BC
91401950.05414
1652.963.3710.9950
L0.0224m
CD
91401950.00506
1757.73.79610.9943
L0.0272m
FE
91401950.00569
1747.7214.80910.9384
L0.1021m
ED
91401950.06354
总伸长量:
L0.03483+0.08729+0.0224+0.0272+0.1021=0.2738m
与设计伸长值差:
27.38-27.50=-0.12cm
40米T梁边跨N2钢束伸长量计算