Ｒeinforcement and Ｒeducing Load on Extrados of the Small-Span
Solid-Type Stone Arch Bridge

doi:10.3969/j.issn.1674-0696.2013.sup.1.21

Journal of Chongqing Jiaotong University(Natural Science) ›› 2013, Vol. 32 ›› Issue (增1): 815-817.DOI: 10.3969/j.issn.1674-0696.2013.sup.1.21

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Ｒeinforcement and Ｒeducing Load on Extrados of the Small-Span Solid-Type Stone Arch Bridge

Gao Kai，Zhou Jianting，Liu Lu

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

Received:2013-03-01 Revised:2013-04-02 Online:2013-06-30 Published:2015-03-12

小跨径实腹式石拱桥拱背加固减载法研究

高凯，周建庭，刘路

重庆交通大学土木建筑学院，重庆400074

作者简介:高凯(1988—)，男，四川南充人，硕士研究生，主要从事桥梁加固与健康监测方面的研究。E-mail:751337055@qq.com.
基金资助:
重庆市重大科技攻关项目( CSTC2005AA6010) ; 交通运输部西部交通建设科技项目( 200431878518)

Abstract

Abstract: Based on the method of enlarging section of reinforced concrete and reducing load on arches，the feasibility of the method of reinforcement and reducing load which was used to reinforce the small-span solid-type stone arch bridge was analyzed， and the application of the method on the small-span stone arch bridge in projects was also confirmed． Besides，the bearing capacity of the back arch rings was analyzed before and after reinforcement; meanwhile，this proposed reinforcement method was compared with other reinforcement methods in improving the bearing capacity of main arch rings．

Key words: small span, the solid-type stone arch bridge, extrados, reinforcement, method of reducing load, section enlargement method

摘要： 从钢筋混凝土增大截面加固法和拱上减载法入手，论证了拱背加固减载法对小跨径实腹式石拱桥进行加固的可行性，并结合依托工程验证了拱背加固减载法在小跨径石拱桥上的应用，并分析了加固前后主拱圈的承载力，以及该加固法与其他加固方法在提高主拱圈承载力上的对比。

关键词: 小跨径, 实腹式石拱桥, 拱背, 加固, 减载法, 增大截面法

CLC Number:

U442.51

Gao Kai，Zhou Jianting，Liu Lu. Ｒeinforcement and Ｒeducing Load on Extrados of the Small-Span Solid-Type Stone Arch Bridge[J]. Journal of Chongqing Jiaotong University(Natural Science), 2013, 32(增1): 815-817.

高凯，周建庭，刘路. 小跨径实腹式石拱桥拱背加固减载法研究[J]. 重庆交通大学学报（自然科学版）, 2013, 32(增1): 815-817.

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Ｒeinforcement and Ｒeducing Load on Extrados of the Small-Span Solid-Type Stone Arch Bridge

小跨径实腹式石拱桥拱背加固减载法研究

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