基于弹性层状体系理论下的重载铁路轨道结构动力响应分析  

Dynamic Response Analyses of Heavy Haul Railway Track Structure Based on Elastic Layered System Theory

作　　者：郭抗美[1] 滑晶晶 GUO Kang-mei;HUA Jing-jing(Hebei University of Technology,Graduate School of Civil Engineering Department,Tianjin 300400 China)

机构地区：[1]河北工业大学土木与交通工程学院,天津300400

出　　处：《科学技术与工程》2018年第17期302-307,共6页Science Technology and Engineering

摘　　要：通过分析重载铁路轨道结构的受力特征,得出车辆荷载在轨枕上的分担规律。基于二维弹性层状体系理论建立了重载铁路轨道结构的层状体系力学模型。利用MATLAB软件编制相应的程序计算出弹性层状体系的理论解,将得出的计算数据和大秦线实测数据做对比分析,检验出计算程序的正确性和弹性层状体系理论研究方法的可行性,为今后重载铁路轨道结构动力响应的研究提供了一套新的思路和方法。Sharing rule of vehicle load was obtained on the sleeper by analyzing the force characteristics of the track structure. Based on the two-dimensional elastic layered system theory,the mechanical model of the layered system was established under the rail structure. The MATLAB software program can calculate the theoretical solution of elastic layered system,and compared with the testing data on Daqing line,it can verify the feasibility of the validity of the calculation program and the feasibility of the elastic layered system theory method. A new train of thought and method for the study of the dynamic response of heavy haul railway track structure in the future was provided.

关 键 词：铁路轨道 受力特征 弹性层状体系理论 力学模型 动力响应 

分 类 号：U239.4[交通运输工程—道路与铁道工程]