图纸缺失的既有圬工拱桥承载能力评估研究

Study on Bearing Capacity Evaluation of Existing Masonry Arch Bridge with No Drawings

我国既有桥梁数量庞大,部分早期建设的桥梁存在技术资料缺失的情况。随着桥梁服役龄期的增加,有必要对这些桥梁的承载能力进行评估,以保证其安全运营。以图纸缺失的某圬工拱桥为例,提出了一种基于现场检测和理论计算的评估方法,从该拱桥在承载能力、拱桥满足挠度验算要求等评估结果,可为该桥后续运营管理及类似案例提供参考。

There are a large number of existing bridges in China,and some of the bridges built in the early stage are lack of technical data.With the increase of bridge service age,it is necessary to evaluate the bearing capacity of these bridges to ensure their safe operation.Taking a masonry arch bridge with missing drawings as an example,presents an evaluation method based on on-site detection and theoretical calculation,the evaluation results,such as the bearing capacity of the arch bridge and the deflection of the arch bridge,can provide refer‐ence for the follow-up operation and management of the bridge and similar cases.