Analysis of Influence of Damage to Ribbon Strips in Steel Reinforced Concrete T-beam Bridge on its Load-carrying Capacity and Bridge Strengthening

孙强; 朱彤; 强丽峰

doi:10.13409/j.cnki.jdpme.2011.03.004

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Analysis of Influence of Damage to Ribbon Strips in Steel Reinforced Concrete T-beam Bridge on its Load-carrying Capacity and Bridge Strengthening

更新时间：2025-12-11

- Analysis of Influence of Damage to Ribbon Strips in Steel Reinforced Concrete T-beam Bridge on its Load-carrying Capacity and Bridge Strengthening
- Vol. 31, Issue 3, Pages: 329-334+340(2011)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2011.03.004
  CLC： 445.72;U441
- Published：2011
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[1]孙强,朱彤,强丽峰.T型梁桥损伤肋梁对承载力的影响及其加固研究[J].防灾减灾工程学报,2011,31(03):329-334+340.

孙强, 朱彤, 强丽峰. Analysis of Influence of Damage to Ribbon Strips in Steel Reinforced Concrete T-beam Bridge on its Load-carrying Capacity and Bridge Strengthening[J]. 2011, 31(3): 329-334+340.
[1]孙强,朱彤,强丽峰.T型梁桥损伤肋梁对承载力的影响及其加固研究[J].防灾减灾工程学报,2011,31(03):329-334+340. DOI： 10.13409/j.cnki.jdpme.2011.03.004.

孙强, 朱彤, 强丽峰. Analysis of Influence of Damage to Ribbon Strips in Steel Reinforced Concrete T-beam Bridge on its Load-carrying Capacity and Bridge Strengthening[J]. 2011, 31(3): 329-334+340. DOI： 10.13409/j.cnki.jdpme.2011.03.004.

摘要

针对辽阳市中华大桥局部结构损伤对其承载力影响的问题

通过现场静力试验和损伤检测

得出了系统的现场数据

将该数据与桥梁破坏前的检测数据进行对比

确定结构的主要损伤为预应力T型主梁连接处的肋梁严重破损。用大型三维有限元软件ANSYS中的生死单元技术模拟破坏肋梁

建立了单跨损伤肋梁有限元数值模型

并将有限元数值分析结果与检测值相对比

验证了有限元模型的准确性。最后

采用钢筋焊接填筑混凝土进行补强

以外加钢板法加固损伤肋梁

并建立加固后的有限元模型

分析验证了该加固方法的有效性。

Abstract

In order to estimate the load-carrying capacity of locally damaged Zhong-hua bridge

by using static experiment and damage test method we made sure that the main damage to the bridge is at the ribbon strips of prestressed T-beam.We built a finite element model of damaged ribbon strips by means of"birth ad death"method and proved the model is appropriate by comparing the numerical analysis results with experimental results.Finally

we strengthened the damaged bridge by strengthening concrete and steel plate welding and demonstrated the effectiveness of the strengthening method.

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references

基于ANSYS的钢筋混凝土简支梁极限承载力分析 [J]. 李义强,彭正中,王新敏. 石家庄铁道学院学报 . 2006(01)

桥梁健康监测与状态评估的研究现状与发展 [J]. 袁万城,崔飞,张启伟. 同济大学学报(自然科学版) . 1999(02)

粘钢加固混凝土梁的粘结应力研究 [D]. 齐云. 武汉理工大学 2006

JTG D62-2004. 公路钢筋混凝土及预应力混凝土桥涵设计规范 [S]. 2004

ANSYS工程结构数值分析[M]. 人民交通出版社 , 王新敏, 2007

桥梁检测[M]. 人民交通出版社 , 张俊平主编, 2002

钢筋混凝土有限元与板壳极限分析[M]. 清华大学出版社 , 沈聚敏等编著, 1993

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