既有大跨径石拱桥承载能力分析

Analysis of bearing capacity of existing long span stone arch bridge

本文以一座既有大跨径石拱桥为工程背景,详细介绍了基于桥梁现状外观及材质状况检查、荷载试验、三维数值模型计算分析的既有大跨径石拱桥承载能力分析评估工作过程和结果,分析评估结果为该桥梁的合理维护、安全运营提供了技术支撑,同时分析评估过程可为同类型桥梁承载能力评估提供借鉴。

In this paper, taking a long-span bridge as the engineering background, the process and results of long-span stone arch bridge bearing capacity test evaluation are introduced in detail based on the present situation and the status of the material appearance inspection,load test, three dimensional numerical model calculation and analysis. The assessment results provide the technical support for the reasonable maintenance and safe operation of the bridge. Meanwhile, the evaluation process can provide reference for the evaluation of the bearing capacity of similar bridges.