基于柔度矩阵的斜拉桥拉索损伤识别研究

英文篇名：Cable Damage Identification Research on Cable-Stayed Bridges Based on Flexibility Matrix
中文刊名：中国海洋大学学报(自然科学版)
英文刊名：Periodical of Ocean University of China
作者：董晓马 ; 岳鹏威
英文作者：DONG Xiao-Ma ; YUE Peng-Wei ; Zhengzhou Institute of Aeronautical Industry Management
中文关键词：拉索损伤 ; 斜拉桥 ; 柔度矩阵
英文关键词：cable damage ; cable-stayed bridges ; flexibility matrix
出版日期：2013-09-15
机构：郑州航空工业管理学院土木建筑工程学院;
年：2013
期：09
出版单位：中国海洋大学学报(自然科学版)

摘要

为实现对大跨度斜拉桥拉索损伤识别以及实际测试时结构高阶模态难以准确获取特点,提出了基于柔度差矩阵斜拉桥拉索损伤识别方法。本文首先给出柔度矩阵定义,然后阐述了基于柔度差矩阵的损伤识别机理,并以润扬大桥为试验对象模拟4种不同的损伤工况研究该方法的适用性。试验研究结果表明,该法能有效的识别出斜拉桥拉索损伤位置。
In order to achieve the cable damage identification of long-span cable-stayed bridges,this paper proposed a new method for cable damage identification based on flexibility difference matrix theory analysis.The flexibility matrix definition was firstly advanced in this paper,and then the damage detection mechanisms based on flexibility difference matrix was analyzed.Finally,the proposed method applicability was studied for a domestic cable-stayed bridge.The experiment results of model cablestayed bridges show that the proposed method is effective for cable damage identification of cable-stayed bridges.

引文

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