福州大学学报（自然科学版）2025，Vol.53Issue(4)：454-461,8.DOI:10.7631/issn.1000-2243.24253
小波能量法的桥墩损伤识别
Research on bridge pier damage identification based on wavelet energy method
摘要
Abstract
This study addresses the challenge of corrosion damage identification in cross-sea bridge piers by validating the applicability of the wavelet total energy change(WTEC)index through shaking table tests and finite element simulations.The experimental program employed a reduced cross-section method of steel bars to simulate localized corrosion,with dynamic response data collected under seis-mic wave excitation to evaluate the effectiveness of WTEC in pier damage detection.Integrated with finite element modeling,the research systematically investigates the influence patterns of sampling frequency,noise level,and seismic intensity on damage identification accuracy.The results demon-strate that the WTEC index achieves superior recognition precision under high sampling frequency and low-noise conditions.This methodology proves technically viable for early-stage corrosion damage diagnosis in offshore bridges,offering significant engineering value for enhancing structural safety and extending service life under extreme environmental conditions.关键词
损伤识别/桥墩/振动台试验/跨海大桥/小波能量Key words
damage identification/bridge pier/shake table test/sea-crossing bridge/wavelet energy分类
建筑与水利引用本文复制引用
许涛,黄斌,林文昊,谷音..小波能量法的桥墩损伤识别[J].福州大学学报（自然科学版）,2025,53(4):454-461,8.基金项目
国家自然科学基金资助项目(52278159) （52278159）
