双曲拱桥在中小跨径桥梁中应用广泛，现有的许多双曲拱桥随着服役年限的增长，在实际的运营过程中往往会出现许多问题，因此有必要对双曲拱桥进行定期的检测鉴定并采取相应的加固措施。通过对新乡劳动桥进行使用现状调查和结构性能检测，分析了其存在的病害及形成原因。新乡劳动桥的调查研究表明，造成该桥病害的原因很多；通过对该桥的承载力验算，主拱拱圈的各项性能指标尚能满足设计要求，可采用加厚拱板法对该桥进行加固，以保障安全使用。%Double curved arch is widely used in small and medium-span bridges. Many existing curved arch bridge with the service life of growth,often have many problems in the actual operation of the process. Therefore,it is necessary to conduct regular testing hyperbolic arch identify and take appropriate reinforcement measures. In this paper ,through the use of Xinxiang Labor Survey Bridge and structural performance testing,we analyzed the existence of the disease and its causes. Research shows that the diseases caused by the bridge for many reasons;Based on the bridge bearing capacity calculation,the performance of the main arch arch can still meet the design requirements. Thickening arch plate method is helpful for the bridge reinforcement.
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