Reason Analysis and Countermeasures for Excessive Deflection of
Midspan in Long-Span Continuous Rigid Frame Bridges

Journal of Chongqing Jiaotong University(Natural Science) ›› 2007, Vol. 26 ›› Issue (6): 46-49.

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Reason Analysis and Countermeasures for Excessive Deflection of Midspan in Long-Span Continuous Rigid Frame Bridges

QI Dong-chun,ZHANG Yong-shui,LI Qiang

School of Civil Engineering&Architecture，Chongqing Jiaotong University，Chongqing 400074，China

Received:2006-11-06 Revised:2006-12-04 Online:2007-12-15 Published:2015-01-22

大跨径连续刚构桥跨中下挠的成因及对策

齐东春，张永水，李强

重庆交通大学土木建筑学院，重庆 400074

作者简介:齐东春(1978—)，男，湖北宜昌人，硕士研究生，主要研究方向为桥梁结构理论和施工监控.E-mail:qidongchun@163.com.

Abstract

Abstract: The excessive deflection in the midspan is one of the main faults in long-span continuous rigid frame bridges.This paper make a comprehensive analysis for the causes of the excessive deflection and find out the countermeasures for this problem.

Key words: continuous rigid frame bridge, excessive deflection in the midspan, reason analysis, countermeasures

摘要： 跨中下挠过大是目前国内大跨径连续刚构桥的主要病害之一．对跨中下挠过大的原因进行了全面的分析，并在此基础上提出了有效的改进措施．

关键词: 连续刚构桥, 跨中下挠, 成因, 对策

CLC Number:

U448.23

QI Dong-chun,ZHANG Yong-shui,LI Qiang. Reason Analysis and Countermeasures for Excessive Deflection of Midspan in Long-Span Continuous Rigid Frame Bridges[J]. Journal of Chongqing Jiaotong University(Natural Science), 2007, 26(6): 46-49.

齐东春，张永水，李强. 大跨径连续刚构桥跨中下挠的成因及对策[J]. 重庆交通大学学报（自然科学版）, 2007, 26(6): 46-49.

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Reason Analysis and Countermeasures for Excessive Deflection of Midspan in Long-Span Continuous Rigid Frame Bridges

大跨径连续刚构桥跨中下挠的成因及对策

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