摘要
提出在斜拉桥施工阶段采用非接触式微波索力测量技术来监测斜拉索索力,介绍了基于微波雷达的斜拉索振动频率索力测量法的基本原理,以安徽阜阳在建的矮塔斜拉桥——泉河大桥为例,说明了使用微波测索力的过程,并将测量结果与传统的索力动测仪法进行了对比。结果显示,微波索力测量技术可实现多根拉索同时测量,不受天气、场地以及斜拉索长度等因素的限制,极大地提高了索力测量效率,其测量精度亦满足要求,适宜在施工阶段进行快速索力监测。
In this paper it is proposed the use of non-contact microwave cable force measurement technology to measure the cable force during the construction phase of cable-stayed bridges.The basic principle of this cable vibration frequency force measurement method based on microwave radar is introduced.Taking the extradosed bridge-Quanhe Bridge in Huyang,Anhui Province,as an example,the process of measuring cable force by microwave is illustrated,and the measurement results is compared with the traditional method of dynamic measuring instrument.The results show that the microwave cable force measurement technology can achieve simultaneous measurement of multiple cables without being restricted by factors such as weather,site,and cable length,which greatly improves the efficiency of cable force measurement,and the measurement accuracy also meets the requirements,suitable for the rapid cable force monitoring at the construction stage.
作者
韩明洋
王教才
刘越
解佳展
杜隆基
HAN Ming-yang;WANG Jiao-cai;LIU Yue;XIE Jia-zhan;DU Long-ji(Anhui Province Highway&Port Engineering Co.Ltd.,Hefei 230022,China;University of Science and Technology Beijing,Beijing 100083,China;Beijing University of Technology,Beijing 100124,China;CCCC Highway Bridges National Engineering Research Centre Co.Ltd.,Beijing 100004,China)
出处
《公路》
北大核心
2022年第7期146-150,共5页
Highway
基金
国家自然科学基金项目,项目编号51908012
中国博士后科学基金项目,项目编号2019M660962。
关键词
斜拉桥
索力测量
微波雷达
振动频率法
cable-stayed bridge
cable force measurement
microwave radar
vibration frequency method
