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文章分析了福建省洋布桥病害产生的原因,提出了仅从拱背上加固改造双曲拱桥的综合治理新方法,该法具有加固效果好、工期短、成本低的优点。该法在分析拱桥受力特性的基础上提出的多孔拱桥下部结构常有富裕,不必加固;重点加强拱顶、拱脚,充分利用主拱圈富裕截面的加固思路,对其他拱桥的加固改造具有一定的指导意义。
This paper analyzes the causes of the disease of Yangbu Bridge in Fujian Province and proposes a new method of comprehensive harnessing and rebuilding double curved arch bridge only from the back of arch. This method has the advantages of good reinforcement effect, short construction period and low cost. Based on the analysis of the stress characteristics of the arch bridge, the method proposed in this paper is often rich and does not need to be reinforced in the substructure of the arch bridge. Emphasis should be put on the vaults and arch feet to make full use of the reinforcement measures of the rich section of the main arch ring. A certain guiding significance.