运用毫米波雷达和振动法对桥梁振动幅值测试的对比分析

Using millimeter wave radar and vibration method to test bridge vibration amplitude comparative analysis

通过对毫米波雷达和振动法测试桥梁的振动幅值进行对比研究,对两种不同测试方法的数值进行对比分析,为桥梁振动幅值的测试提供科学的依据。与振动法相比,毫米波雷达法不仅能准确测试桥梁动挠度波动的情况,同时可以准确提取桥梁动挠度的振动幅值。因此,毫米波雷达为今后对于桥梁振动幅值的研究提供了一种更加有效的技术手段。此研究成果为采用毫米波雷达进行桥梁振动幅值测试、评定的规范化和标准化有重要的意义。

This paper makes a comparative study on the vibration amplitude of bridge measured by millimeter wave radar and vibration method. The numerical values of two different test methods are compared and analyzed. It provides a scientific basis for the measurement of bridge vibration amplitude.Compared with the vibration method,the MMW radar method can not only accurately measure the dynamic deflection fluctuation of the bridge,but also accurately extract the vibration amplitude of the bridge dynamic deflection. Therefore,millimeter wave radar provides a more effective technical means for the study of bridge vibration amplitude in the future. The research results of this paper are of great significance for the normalization and standardization of bridge vibration amplitude measurement and evaluation by millimeter wave radar.