Research on Stress,Deflection and Crack Monitoring System of Long-Span Continuous Rigid-Frame Bridge

Journal of Chongqing Jiaotong University(Natural Science) ›› 2010, Vol. 29 ›› Issue (4): 521-524.

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Research on Stress,Deflection and Crack Monitoring System of Long-Span Continuous Rigid-Frame Bridge

ZHANG Kai-hong¹, YAN Guo¹, ZHANG Ben-niu¹, ZHOU Zhi-xiang², XU Yong²

1.Information Science and Engineering Department, Chongqing Jiaotong University, Chongqing 400074, China; 2.School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China

Received:2010-05-10 Revised:2010-06-07 Online:2010-08-15 Published:2015-01-22

大跨度连续刚构桥梁应力、挠度和裂缝实时监测系统研究

张开洪¹, 张奔牛¹, 闫果¹, 周志祥², 徐勇²

1.重庆交通大学信息科学与工程学院, 重庆 400074; 2.重庆交通大学土木建筑学院, 重庆 400074

作者简介:张开洪(1973—),男,四川犍为人,副教授,博士研究生,主要从事桥梁健康监测和电子信息技术研究方面工作。E-mail:zkh@cqjtu.edu.cn。
基金资助:
国家自然科学基金资助项目(50808188) ; 重庆市教委自然科学基金资助项目(KJ090426 ) ; 重庆交通大学结构工程实验室开放基金资助项目(CQSLBF- Z09- 7)

Abstract

Abstract: Deflection of m id span and crack of box girder is the common disease among long-span continuous rigid-frame bridges. Methods and health monitoring system of the said bridge was studied due to its disease characteristics and causes. Them onitoring system was applied in Taipingzhuang Bridge to conduct a case study. Result showed that the system could monitor actual damage of bridges; it was sensitive and reliable, therefore it could be widely used in bridgem onitoring.

Key words: bridge, deflection, crack, monitoring

摘要： 大跨度连续钢构桥梁普遍存在的病害问题是主跨跨中下挠过大和箱梁开裂。针对大跨度连续钢构桥梁病害特征及其致病因素,研究该类桥梁结构的监测方法。设计了大跨度连续钢构桥梁实时监测系统,并应用于太平庄大桥实体工程中。监测结果表明,该系统能实时地监测桥梁结构的实际损伤情况,灵敏度高,可靠性好,可广泛应用于大跨度连续刚构桥梁监测。

关键词: 桥梁, 挠度, 裂缝, 监测

CLC Number:

TP212

ZHANG Kai-hong, YAN Guo, ZHANG Ben-niu, ZHOU Zhi-xiang, XU Yong. Research on Stress,Deflection and Crack Monitoring System of Long-Span Continuous Rigid-Frame Bridge[J]. Journal of Chongqing Jiaotong University(Natural Science), 2010, 29(4): 521-524.

张开洪, 张奔牛, 闫果, 周志祥, 徐勇. 大跨度连续刚构桥梁应力、挠度和裂缝实时监测系统研究[J]. 重庆交通大学学报（自然科学版）, 2010, 29(4): 521-524.

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Research on Stress,Deflection and Crack Monitoring System of Long-Span Continuous Rigid-Frame Bridge

大跨度连续刚构桥梁应力、挠度和裂缝实时监测系统研究

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