铁道标准设计2016，Vol.60Issue(4)：8-11,12,5.DOI:10.13238/j.issn.1004-2954.2016.04.003
有轨电车新型嵌入式轨道钢轨抗倾覆性能分析
Analysis of Rail Anti-turnover Performance for New Tramcar Embedded Track
摘要
Abstract
As the new rail-embedded track is not set in place with fastener system and is fixed in the rail groove with polyurethane materials, the rail anti-turnover performance is largely depended on the stability of polyurethane materials and must be calculated and confirmed. Based on the stability theory of rail, this paper establishes the three-dimensional finite element and analyzes rail anti-turnover performance under interaction of lateral load and vertical eccentric load. The results show that the rail anti-turnover performance of embedded track is affected by many factors and the vertical load eccentricity and the elastic modulus of polyurethane materials are critical; the impact of wedge block spacing is very small. The rail head traverse amount increases with the increase of load eccentricity and decreases with the increase of the elastic modulus of polyurethane materials. In order to prevent rail turnover, the suggested values of the elastic modulus of polyurethane materials are 5~15 MPa.关键词
有轨电车/新型嵌入式轨道/聚氨酯填充材料/抗倾覆性能Key words
Tram/New rail-embedded track/Polyurethane materials/Anti-turnover performance分类
交通工程引用本文复制引用
罗炯,陈攀,秦超红,李成辉,胡洋..有轨电车新型嵌入式轨道钢轨抗倾覆性能分析[J].铁道标准设计,2016,60(4):8-11,12,5.基金项目
中央高校基本科研业务费资助项目(SWJTU12CX079),现代有轨电车/嵌入式轨道-轨道结构稳定性及关键参数研究(VZ8811011152) （SWJTU12CX079）
