|本期目录/Table of Contents|

[1]黄成,罗韧,韩晓健.曲率模态方法对系杆拱桥的损伤识别[J].南京工业大学学报(自然科学版),2015,37(01):88-93.[doi:10.3969/j.issn.1671-7627.2015.01.016]
 HUANG Cheng,LUO Ren,HAN Xiaojian.Damage detection of tied arch bridge based on curvature modal method[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2015,37(01):88-93.[doi:10.3969/j.issn.1671-7627.2015.01.016]
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曲率模态方法对系杆拱桥的损伤识别()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
37
期数:
2015年01期
页码:
88-93
栏目:
出版日期:
2015-01-19

文章信息/Info

Title:
Damage detection of tied arch bridge based on curvature modal method
文章编号:
1671-7627(2015)01-0088-06
作者:
黄成1罗韧1韩晓健2
1.南京工业大学 交通学院,江苏 南京 211800; 2.南京工业大学 土木工程学院,江苏 南京 211800
Author(s):
HUANG Cheng1LUO Ren1HAN Xiaojian2
1.College of Transportation Science and Engineering,Nanjing Tech University,Nanjing 211800,China; 2.College of Civil Engineering,Nanjing Tech University,Nanjing 211800,China
关键词:
系杆拱桥 曲率模态方法 平均曲率模态因子 有限元分析
Keywords:
tied arch bridge curvature modal method average curvature modal factor finite element analysis
分类号:
U441
DOI:
10.3969/j.issn.1671-7627.2015.01.016
文献标志码:
A
摘要:
以系杆拱桥为研究对象,利用Midas建立有限元模型,研究系杆拱桥结构的特殊动力特性,并对基于曲率模态分析理论的损伤识别方法进行了探讨,引用平均曲率模态因子指标对系杆拱桥吊杆损伤进行判定,并利用平均曲率模态因子指标对实际已损伤的系杆拱桥测试数据进行分析,通过Matlab程序实现识别算法并获得识别参数,利用绘图软件强大的绘图能力绘制参数变化图,根据参数变化图判定实际系杆拱桥的损伤是否存在及损伤位置,验证平均曲率模态因子指标在实际系杆拱桥损伤识别中运用的可行性及适用性。研究表明:当系杆拱桥出现损伤时,已损伤位置平均曲率模态因子曲线会发生突变,运用平均曲率模态因子指标可以较好判定实际系杆拱桥的损伤位置,初步判定结构的相对损伤程度,在实际系杆拱桥的损伤识别中具有一定的应用价值。
Abstract:
The finite element model was establish by Midas to study the dynamic characteristics of tied arch bridge,and curvature modal damage identification method for theoretical analysis was discussed.Then,the mean curvature modal index was quoted to evaluate the tied arch bridge suspender damage,and the actual test data of tied arch bridge damage were analyzed by the average curvature modal index through Matlab program to achieve the recognition algorithm and parameter identification.Parameter change charts were plotted by graphic software to determine the actual tied arch bridge damage existence and damage location,and the feasibility and applicability of the average curvature modal factorsin for actual tied arch bridge damage identification was verified.Research shown that when the tied arch bridge damaged,the mean curvature modal factor curve at damage location mutated.The mean curvature mode index could be used to determine the damage location in actual tied arch bridge,and relative damage degree of the structure could be preliminary determinant.The research had certain application value in the damage identification of the tied arch bridge.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-03-11
作者简介:黄成(1989—),男,江苏泰州人,硕士,主要研究方向为桥梁承载力状态评估; 罗韧(联系人),副教授,E-mail:luorenyy@163.com.
引用本文:黄成,罗韧,韩晓健.曲率模态方法对系杆拱桥的损伤识别[J].南京工业大学学报:自然科学版,2015,37(1):88-93..
更新日期/Last Update: 2015-01-20