市政技术2024，Vol.42Issue(12)：152-160,9.DOI:10.19922/j.1009-7767.2024.12.152
无线分布式毫米波雷达桥梁挠度测试技术研究
Study on Bridge Deflection Detection Technology Based on Wireless Distributed Millimeter-wave Radar
乔磊 1杜文康 2郭河 1李泽西 1宋浩1
作者信息
- 1. 中交基础设施养护集团有限公司,北京 100000||中交路桥检测养护有限公司,北京 100000
- 2. 中国矿业大学(北京)力土学院,北京 100000
- 折叠
摘要
Abstract
The bridge load test is an effective means to evaluate the safe load capacity of the bridge.The stiffness in-formation of the bridge can be known by the deflection parameters.The traditional deflection measurement method has disadvantages such as difficulty in measuring point layout,poor accuracy,large environmental limitation and low measurement efficiency;The millimeter-wave radar need install corner reflector which will increase costs and reduce efficiency.Therefore,a wireless distributed millimeter wave radar testing system is proposed to solve the problem of fast and accurate testing of small and medium span bridges.Compared with the traditional method,the accuracy of the system in the deflection test of real bridge load test is verified.Finally,the feasibility of the system is further proved by an example of the bearing capacity evaluation of a simply-supported beam bridge.The results show that wireless distributed millimeter wave radar has obvious advantages and application prospects in deflection mea-surement of load test.关键词
桥梁荷载试验/毫米波雷达/干涉测量/挠度测试/承载能力Key words
bridge load test/millimeter wave radar/interference measurement/deflection test/carrying capacity分类
交通工程引用本文复制引用
乔磊,杜文康,郭河,李泽西,宋浩..无线分布式毫米波雷达桥梁挠度测试技术研究[J].市政技术,2024,42(12):152-160,9.
