ANALYSIS APPROCHES OF THE LOAD EXCITED BY METRO TRAFFIC
Vibration generated by metro traffic has become important environmental issue. The vibration propagates through the tunnel and surrounding soil into nearby buildings, causing annoyance to inhabitants and malfunctioning to sensitive equipment. The excitation load should be determined primarily for predicting these influences and taking proper measures to mitigate the vibrations. Comprehensive generalization and comparison for analysis approaches are necessary to point out the deficiencies and improve the accuracy of these methods. The analysis approaches of excitation load can be divided into three groups: field measurements, empirical models, and numerical simulations. The basic principles for the deterministic analysis of metro train load are put forward by comparing analysis approaches and investigating generating mechanism. It is shown that the excitation load has a deterministic nature and a stochastic nature, thus it can be analyzed by deterministic methods such as periodic functions and stochastic methods such as stationary Gaussian processes. Each component of the load should be accord with the statistical regularity of field measurements. Different advantages and deficiencies of these methods for analyzing train load are obtained from the detailed comparison. At last, different constraints and application conditions of these approaches are presented in this paper.
Metro train load Empirical model Field measurement Numerical simulation
Jun Yuan Min-Zhe Wu Zhao-Bo Meng Ke Zhang
College of Civil Engineering, Xian University of Architecture and Technology, Xian 710055,P.R. China
国际会议
第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)
长沙
英文
1141-1146
2008-10-19（万方平台首次上网日期，不代表论文的发表时间）