Simple Method for Estimating Buckling Temperature of Continuous Welded Rail Considering Lateral Track Irregularities

被引：0

作者：

Yamaoka D. ^{[1
]}

Tamagawa S. ^{[1
]}

Nishinomiya Y. ^{[1
]}

机构：

[1] Track Structure and Components Laboratory, Track Technology Division

来源：

Quarterly Report of RTRI (Railway Technical Research Institute) | 2024年 / 65卷 / 02期

关键词：

buckling temperature; continuous welded rail; FEM; lateral track irregularities; track inspection car;

D O I：

10.2219/rtriqr.65.2_110

中图分类号：

学科分类号：

摘要：

The setting of the control index for buckling of continuous welded rails in Japan is based on the lowest rail temperature increase at which buckling can theoretically occur. However, there is a considerable difference between the index temperature and the buckling temperature at which actual rail buckling occurs. Therefore, the current buckling control index safety margin may be excessive. In order to improve the accuracy of this control index, it is necessary to estimate the buckling temperature affected by lateral track irregularities. This study proposes a method for easily estimating the buckling temperature of continuous welded rails considering lateral track irregularities measured by a track inspection car. © 2024 Ken-yusha Inc.. All rights reserved.

引用

页码：110 / 116

页数：6

共 14 条

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