20m25m30m后张梁钢绞线伸长量计算书Word文件下载.docx
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20m25m30m后张梁钢绞线伸长量计算书Word文件下载.docx
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1.81+0.25×
0)]/(0.0015×
0)
=195586×
[1-0.997288682]/0.002715
=195321(N)
△L1=(195321×
1.81)/(202000×
140)
△L1=1.25cm
②N1#筋(曲线段BC)的长度:
1.1248m(计算单端)
p=195586*e-(0.0015×
0)×
1.1248+0.25×
0.01745)]/(0.0015×
0.01745)
=195056×
[1-0.993968562]/0.0060497
=194467(N)
△L2=(194467×
1.1248)/(202000×
△L2=0.77cm
③N1#筋(第二直线段CD)的长度7.2576m(计算单端)
p=194467*e-(0.0015×
0.01746)×
7.2576+0.25×
7.2576+0.2×
=193294×
[1-0.989172642]/0.0108864
=192246(N)
△L3=(192246×
7.2576)/(202000×
△L3=4.93cm
N1#筋单端伸长量:
△L=△L1+△L2+△L3
=1.25cm+0.77cm+4.93cm
=6.95cm
N1#筋
总伸长量:
6.95×
2=13.9cm
N2#筋:
①N2#筋(第一直线段AB)的长度:
直线段长度+千斤顶长度=1.6389m(计算单端)
1.6389+0.25×
[1-0.997544669]/0.00245835
=195346(N)
△L1=(195346×
1.6389)/(202000×
△L1=1.13cm
②N2#筋(曲线段BC)的长度:
6.2742m(计算单端)
6.2742+0.25×
0.10472)]/(0.0015×
0.10472)
=195106×
[1-0.965034622]/0.0355913
=191675(N)
△L2=(191675×
6.2742)/(202000×
△L2=4.25cm
③N2#筋(第二直线段CD)的长度2.2971m(计算单端)
p=191675*e-(0.0015×
0.10472)×
2.2971+0.25×
=184973×
[1-0.996560279]/0.00344565
=184655(N)
△L3=(184655×
2.2971)/(202000×
△L3=1.50cm
N2#筋单端伸长量:
=1.13cm+4.25cm+1.5cm
=6.88cm
N2#筋
6.88×
2=13.76cm
N3#筋:
①N3#筋(第一直线段AB)的长度:
直线段长度+千斤顶长度=3.4364m(计算单端)
3.4364+0.25×
[1-0.994858662]/0.0051546
=195083(N)
△L1=(195083×
3.4364)/(202000×
△L1=2.37cm
6.2896m(计算单端)
6.2896+0.25×
=194580×
[1-0.96501233]/0.0356144
=191156(N)
△L2=(191156×
6.2896)/(202000×
③N2#筋(第二直线段CD)的长度0.4943m(计算单端)
p=191156*e-(0.0015×
0.4943+0.25×
=184468×
[1-0.999258824]/0.00074145
=184400(N)
△L3=(184400×
0.4943)/(202000×
△L3=0.32cm
N3#筋单端伸长量:
=2.37cm+4.25cm+0.32cm
=6.94cm
N3#筋
6.94×
2=13.88cm
25m预制小箱梁钢绞线理论伸长量计算书
直线段长度+千斤顶长度=1.44m(计算单端)
1.44+0.25×
[1-0.997842331]/0.00216
=195375(N)
△L1=(195375×
1.44)/(202000×
△L1=0.99cm
0.7316m(计算单端)
0.7316+0.25×
=195164×
[1-0.994516091]/0.005499
=194628(N)
△L2=(194628×
0.7316)/(202000×
△L2=0.5cm
③N1#筋(第二直线段CD)的长度10.5192m(计算单端)
p=194628*e-(0.0015×
10.5192+0.25×
10.5192+0.2×
0)
=193561×
[1-0.984345033]/0.0157788
=192042(N)
△L3=(192042×
10.5192)/(202000×
△L3=7.14cm
=0.99cm+0.50cm+7.14cm
=8.63cm
8.63×
2=17.26cm
直线段长度+千斤顶长度=3.3359m(计算单端)
3.3359+0.25×
[1-0.995008648]/0.00500385
=195097(N)
△L1=(195097×
3.3359)/(202000×
△L1=2.30cm
3.4872m(计算单端)
3.4872+0.25×
0.087266)]/(0.0015×
0.087266)
=194610×
[1-0.973315202]/0.0270473
=192002(N)
△L2=(192002×
3.4872)/(202000×
△L2=2.37cm
③N2#筋(第二直线段CD)的长度5.8843m(计算单端)
p=192002*e-(0.0015×
5.8843+0.25×
=186878×
[1-0.991212388]/0.00882645
=186056(N)
△L3=(186056×
5.8843)/(202000×
△L3=3.87cm
=2.3cm+2.37cm+3.87cm
=8.54cm
8.54×
2=17.08cm
直线段长度+千斤顶长度=4.9425m(计算单端)
4.9425+0.25×
[1-0.992613664]/0.00741375
=194863(N)
△L1=(194863×
4.9425)/(202000×
△L1=3.41cm
②N3#筋(曲线段BC)的长度:
3.4879m(计算单端)
4.94254+0.25×
3.4879+0.25×
=194141×
[1-0.97331418]/0.02704835
=192776(N)
△L2=(192776×
3.4879)/(202000×
△L2=2.38cm
③N3#筋(第二直线段CD)的长度4.2834m(计算单端)
p=192776*e-(0.0015×
4.2834+0.25×
=187632×
[1-0.993595496]/0.0064251
=187031(N)
△L3=(187031×
4.2834)/(202000×
△L3=2.83cm
=3.41cm+2.39cm+2.83cm
=8.63m
N4#筋:
①N4#筋(第一直线段AB)的长度:
直线段长度+千斤顶长度=6.549m(计算单端)
6.549+0.25×
[1-0.990224593]/0.0098235
=194628(N)
△L1=(194628×
6.549)/(202000×
△L1=4.51cm
②N4#筋(曲线段BC)的长度:
3.486m(计算单端)
3.486+0.25×
=193674×
[1-0.973316954]/0.0270455
=191078(N)
△L2=(191078×
3.486)/(202000×
△L2=2.36m
③N4#筋(第二直线段CD)的长度2.6911m(计算单端)
p=191078*e-(0.0015×
2.6911+0.25×
=185979×
[1-0.995971486]/0.00403665
=185604(N)
△L3=(185604×
2.6911)/(202000×
△L3=1.77cm
N4#筋单端伸长量:
=4.51cm+2.36cm+1.77cm
N4#筋
2=17.28cm
30m预制小箱梁钢绞线理论伸长量计算书
预应力筋张拉端的张拉力190092(N),数据锚圈口应力损失为1.5%,则梁外应力为190092+(190092*1.5%)=192943(N)
直线段长度+千斤顶长度=0.4979m(计算单端)
p=192943×
0.4979+0.25×
=192943×
[1-0.999253428]/0.00074685
=192871(N)
△L1=(192871×
0.4979)/(202000×
△L1=0.34cm
1.7493m(计算单端)
p=192943*e-(0.0015×
1.7493+0.25×
0.034907)]/(0.0015×
0.034907)
=192799×
[1-0.988713476]/0.0113507
=191709(N)
△L2=(191709×
1.7493)/(202000×
△L2=1.19cm
③N1#筋(第二直线段CD)的长度12.9172m(计算单端)
p=191709*e-(0.0015×
0.034907)×
12.9172+0.25×
=189545×
[1-0.980810704]/0.0193758
=187721(N)
△L3=(187721×
12.9172)/(202000×
△L3=8.57cm
=0.34cm+1.19cm+8.57cm
=10.1cm
10.1×
2=20.2cm
直线段长度+千斤顶长度=2.145m(计算单端)
2.145+0.25×
[1-0.99678767]/0.0032175
=192633(N)
△L1=(192633×
2.145)/(202000×
△L1=1.46cm
5.2415m(计算单端)
5.2415+0.25×
0.104719755)]/(0.0015×
0.104719755)
=192323×
[1-0.966530727]/0.034042188
=189086(N)
△L2=(189086×
5.2415)/(202000×
△L2=3.5cm
③N2#筋(第二直线段CD)的长度7.7969m(计算单端)
p=189086*e-(0.0015×
7.7969+0.25×
=182757×
[1-0.988372774]/0.01169535
=181692(N)
△L3=(181692×
7.7969)/(202000×
△L3=5.01cm
=1.46cm+3.5cm+5.01cm
=9.97cm
9.97×
2=19.94cm
直线段长度+千斤顶长度=3.0892m(计算单端)
3.0892+0.25×
[1-0.995376919]/0.0046338
=192497(N)
△L1=(192497×
3.0892)/(202000×
△L1=2.1cm
8.9605m(计算单端)
8.9605+0.25×
=192051×
[1-0.961153947]/0.039620688
=188296(N)
△L2=(188296×
8.9605)/(202000×
△L2=5.97cm
③N3#筋(第二直线段CD)的长度3.15m(计算单端)
p=188296*e-(0.0015×
3.15+0.25×
=180981×
[1-0.995286145]/0.004725
=180554(N)
△L3=(180554×
3.15)/(202000×
△L3=2.01cm
=2.1cm+5.97cm+2.01cm
=10.08m
10.08×
2=20.16cm
直线段长度+千斤顶长度=6.1371m(计算单端)
6.1371+0.25×
[1-0.990836592]/0.00920565
=192058(N)
△L1=(192058×
6.1371)/(202000×
△L1=4.17cm
8.3725m(计算单端)
8.3725+0.25×
0.104719755)
=191175×
[1-0.962002059]/0.038738688
=187519(N)
△L2=(187519×
8.3725)/(202000×
△L2=5.55m
③N4#筋(第二直线段CD)的长度0.7006m(计算单端)
p=187519*e-(0.0015×
0.7006+0.25×
=180394×
[1-0.998949652]/0.0010509
=180299(N)
△L3=(180299×
0.7006)/(202000×
△L3=0.45cm
=4.17cm+5.55cm+0.45cm
=10.17m
10.17×
2=20.34cm
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