王  彬，李青宁
    （西安建筑科技大学土木工程学院，西安710055）

[摘要] 我国早些时期修建的双曲拱桥都存在荷载等级偏低、桥面较窄的问题，随着交通量增加，重载车增多，以及双曲拱桥本身整体性能较差，存在严重的构造缺陷，影响交通运营。主要结合国内某双曲拱桥的检测加固方案，阐述双曲拱桥的病害成因，并详细介绍静载试验评定双曲拱桥承载能力的方法，提出相应的加固处理建议。
[关键词] 双曲拱桥；构造缺陷；检测；静载试验；加固

    Carrying capacity assessment test of double arch bridge
    Wang Bin, Li Qingning
    (School of Civil Engineering, Xi'an University of Architucture and Technology, Xi'an 710055, China)

Abstract: Many hyperbolic arch bridges which were built during the early period of China were designed with low load levels and narrow bridge. As traffic and heavy vehicles increased,as well as poor overall performance of the hyperbolic arch bridge itself, there are serious structural defects, which affect traffic operations. This paper mainly combines with a detection of hyperbolic arch bridge in China, and introduces a method of evaluating the carrying capacity of a bridge though the static loading test in detail and gives some reinforcement advices.
Keywords: hyperbolic arch bridge; structural defects; detection; static load test; reinforcement