基于时间序列分析的车桥共振损伤识别研究  

Damage Identification Study of Bridge-vehicle Coupled Vibration Based on Time Series Analysis

作　　者：张旭[1,2] 葛继平[2] 李胡生[2] 严平 

机构地区：[1]上海理工大学环境与建筑学院,上海200093 [2]上海应用技术学院城市建设与安全工程学院,上海201418 [3]中建国际(深圳)设计顾问有限公司,上海200233

出　　处：《上海应用技术学院学报（自然科学版）》2013年第2期128-133,共6页Journal of Shanghai Institute of Technology: Natural Science

基　　金：铁道部重点科技开发项目(2010G007-J)

摘　　要：随着我国高速铁路的快速发展,针对高速铁路中桥梁的损伤识别研究已成为热门研究领域。与传统静力条件下研究手段不同,在车桥共振条件下的损伤识别研究更加符合实际,具有真实广泛的应用价值。通过时间序列分析的损伤识别方法对桥梁振动响应的仿真数据建立自回归移动平均模型,定义自回归模型参数的一种代数组合作为损伤因子,分别对比损伤因子的变化程度。最终分析表明,使用时间序列分析方法可以成功地对车桥共振环境激励下的结构损伤进行识别。With the rapid development of the high-speed railway, the damage identification study of high-speed railway bridges has become a hot research topic. Compared with the traditional excitation, the study of damage identification in bridge-vehicle coupled vibration conditions has more practical value to be widely applied and promoted. Bridge vibration response simulation data were used to establish the autoregressive moving average model, through the time series analysis of the damage identification method. Defined the regression model parameters as a damage factor, then the degree of damage was constructed. The analysis showed that time series analysis method could be used successfully for the damage identification in bridge-vehicle coupled vibration conditions.

关 键 词：高速铁路桥梁 时间序列 有限元方法 车桥共振 损伤识别 

分 类 号：U441.4[建筑科学—桥梁与隧道工程]