基于小波变换信号处理技术的桥梁结构检测技术研究  

Research on Bridge Structure Detection Technology Based on Wavelet Transform Signal Processing Technology

作　　者：傅斌 FU Bin(Sujiaoke Group Detection Co.Ltd.,Nanjing 211112,China)

机构地区：[1]苏交科集团检测有限公司,南京211112

出　　处：《工程建设与设计》2024年第24期100-102,共3页Construction & Design for Engineering

摘　　要：针对一些投运桥梁超负荷使用且未得到有效养护的问题,从动静态响应角度分析了当前桥梁结构损伤的识别方法,提出了一种基于小波包能量法的桥梁损伤结构识别技术。分析结果表明,损伤程度设为25%的双测点与无损伤测点在多频带具有明显差异,且损伤结构的相邻节点呈现峰值变化,可以显示出损伤结构具体位置。因此,该方法在桥梁结构损伤存在性及其位置检测上具备有效性。iming at the problem that some operational Bridges are overloaded and not effectively maintained,the current damage identification methods of bridge structures are analyzed from the perspective of dynamic and static response,and a new damage identification technology based on wavelet packet energy is proposed.The analysis results show that there are obvious differences between the double measuring points with 25%damage degree and the non-damage measuring points in the multi-frequency band,and the adjacent nodes of the damage structure show the peak change,which can show the specific location of the damage structure.Therefore,this method is effective in detecting the existence and location of bridge structural damage.

关 键 词：小波变换 信号处理 桥梁结构 定位损伤 

分 类 号：U446[建筑科学—桥梁与隧道工程]