基于静载试验的既有桥梁承载力评估——以裕溪路公跨铁立交桥为例  

Evaluation of Bearing Capacity of Existing Bridges Based on Static Load Test——Taking Yuxi Road Overpass as an Example

作　　者：田帅帅 王林凯 夏飞龙 Tian Shuaishuai;Wang Linkai;Xia Feilong(Anhui Transport Consulting&Design Institute Co.,Ltd.,Hefei,Anhui 230088)

机构地区：[1]安徽省交通规划设计研究总院股份有限公司,安徽合肥230088

出　　处：《工程技术研究》2022年第8期18-20,共3页Engineering and Technological Research

摘　　要：采用桥梁静载试验可以定量地推算出桥梁承载力的技术状况,对桥梁的整体工作性能评估提供有力支撑,目前在既有桥梁常规检测中,静载试验通常是最基本的内容。文章介绍了桥梁静载试验设计的原理,阐述了利用静载试验结果中的校验系数和检算系数来评价桥梁实际承载能力的两种方式,然后结合一座预应力简支空心板桥的现场静载试验实例,具体演绎了既有桥梁承载力评估过程。最后,得出静载试验能够有效地对既有桥梁整体性能及承载力进行评估的结论。Bridge static load test can quantitatively calculate the technical status of the actual bridge bearing capacity,and provide strong support for the overall performance evaluation of the bridge. At present, static load test is usually the most basic content in the conventional detection of existing bridges. This paper introduces the principle of bridge static load test design, and expounds two ways to evaluate the actual bearing capacity of the bridge by using the calibration coefficient and the checking coefficient in the static load test results. Then, combined with the field static load test example of a prestressed simply supported hollow slab bridge,the evaluation process of the bearing capacity of the existing bridge is demonstrated. Finally, it is concluded that the static load test can effectively evaluate the overall performance and bearing capacity of existing bridges.

关 键 词：桥梁 静载试验 校验系数 

分 类 号：U441[建筑科学—桥梁与隧道工程]