Method and effectiveness analysis for strengthening a defective bridge

Journal of Chongqing Jiaotong University(Natural Science) ›› 2005, Vol. 24 ›› Issue (2): 18-21.

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Method and effectiveness analysis for strengthening a defective bridge

U You—hao¹． ZHAO Yu—sheng²

1.School of Transportation Engineering, Tongji University, Shanghai 200092, China;2.Henan Communication Research Institute, Zhengzhou 450007, China)

Received:2004-04-21 Revised:2004-07-02 Online:2005-04-15 Published:2015-05-18

某病害桥横向体外预应力加固实践

李友好¹，赵豫生²

1．同济大学交通运输工程学院，上海200092；2．河南省交通科学技术研究院，河南郑州450037

作者简介:李友好(1972一)，男，河南郑州人，博士生，从事道路、桥梁的检测、加固及道路桥梁管理系统的开发应用等工作．

Abstract

Abstract: The defects of a concrete voided slab bridge are described in this paper. The reasons that cause the deterioration are interpreted. A new approach (Transverse External Pre-stressing) is introduced. The effectiveness of the strengthening is validated by field comparison tests

Key words: transverse, xternal Pre-stressing, strengthening, voided slab bridge, loading test

摘要： 通过对某砼空心板简支梁桥病害的调查，分析了该类桥梁病害的产生机理，提出了一种新的加固方法——体外横向预应力加固技术．通过该桥加固前、后的动静载试验，评析了该桥的加固效果．证明采用体外横向预应力技术加固空心板简支梁桥效果明显

关键词: 横向体外预应力, 加固, 空心板, 简支梁桥, 动、静载试验

CLC Number:

U445．7⁺2

U You—hao． ZHAO Yu—sheng. Method and effectiveness analysis for strengthening a defective bridge[J]. Journal of Chongqing Jiaotong University(Natural Science), 2005, 24(2): 18-21.

李友好，赵豫生. 某病害桥横向体外预应力加固实践[J]. 重庆交通大学学报（自然科学版）, 2005, 24(2): 18-21.

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Method and effectiveness analysis for strengthening a defective bridge

某病害桥横向体外预应力加固实践

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