ANALYSIS OF DYNAMIC RESPONSE OF AN EMBEDDED RAILWAY TRACK SUBJECTED TO A MOVING LOAD

被引：0
|
作者：
Zou, Jinhua [1 ]
Huang, Peiyuan [1 ]
机构：
[1] S China Univ Technol, Fac Civil Engn & Transportat, Guangzhou 510640, Guangdong, Peoples R China
来源：
KEY TECHNOLOGIES OF RAILWAY ENGINEERING - HIGH SPEED RAILWAY, HEAVY HAUL RAILWAY AND URBAN RAIL TRANSIT | 2010年
关键词：
embedded railway track; finite element method; moving load; dynamic response;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A dynamic computational model for the embedded railway track subjected to a moving load is developed by means of finite element method in this paper. The model for the track consists of two-layer Euler-Bernoulli beams and continuous visco-elastic elements. The lower beam, the upper beam are employed to model the concrete slab and the rail, respectively, whilst the continuous visco-elastic elements model the soil reaction and the fill material. The problem is solved by employing Newmark-beta numerical integration method. The effects of the speed of the moving loads, the rail type, and the spring stiffness of rail supports are studied. Results show:the dynamic response of rail and slab increases with the increasing of moving loads speed, whilst the response of rail and slab decreases with the increasing of spring stiffness and heavier rail used.
引用
收藏
页码：194 / 199
页数：6
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