铁道科学与工程学报2016，Vol.13Issue(4)：613-618,6.
简支铁路箱梁与轨道结构温度场仿真分析
Simulation analysis of temperature field of simply-supported railway box girder and track structure
摘要
Abstract
In view of the 32 m simply-supported box girders and the CRTS Ⅱ type ballastless track structure which have been largely adopted in the high-speed railway in China,the box girder-ballastless structure simu-lation analysis model was established through the ANSYS finite element software.The model was based on the heat transfer theory,and the solar radiation and the convection heat transfer have been taken into consideration as well.The structure temperature distribution characteristics at typical time were analyzed in this paper.In addi-tion,the temperature changing law with time at the positions including the ballastless track slab,box girder's top plate,web and bottom plate was studied.Based on the structure temperature distribution when the tempera-ture difference is largest and according to the calculation results,the vertical temperature modes of the ballast structure and the box girder have been presented,which could provide some useful information for the tempera-ture stresses calculation of the CRTS Ⅱ type ballastless track in the typical region.关键词
高速铁路/混凝土箱梁/无砟轨道/温度场/仿真分析Key words
high speed railway/concrete box girder/ballastless track/temperature field/simulation analysis分类
交通工程引用本文复制引用
刘柯,戴公连,朱乾坤..简支铁路箱梁与轨道结构温度场仿真分析[J].铁道科学与工程学报,2016,13(4):613-618,6.基金项目
国家自然科学基金资助项目(51378503) （51378503）
高速铁路基础研究联合基金资助项目(U1334203) （U1334203）
