铁道科学与工程学报2017，Vol.14Issue(12)：2593-2603,11.
制动工况下"站桥合一"客站纵向动力研究
Longitudinal dynamic response analysis of"building-bridge integration" railway station induced by vehicle braking
摘要
Abstract
To investigate the effect of high-speed train baking on longitudinal vibrations of"building-bridge integration"railway station, a longitudinal dynamic model for the train-track-station coupled system was established using the self-developed software TTBLS-DYNA. The 3D track-station model was established based on the finite element method, and the vehicle model was modeled by multi-body dynamics. According to the deceleration characteristic curves of EMU train braking, the equations of motion of the train-track-station coupled system was solved by numerical integration method. Taking Tianjin West Station as a numerical example, the dynamic responses of the train-track-station coupled system were analyzed. The results show that longitudinal dynamic responses of station induced by high-speed train braking are small. Longitudinal displacement and acceleration of track level and elevated level reach the maximum at the moment of train stopping. Longitudinal displacement and acceleration of station under double-line braking are smaller than those of single-line braking. Longitudinal acceleration decreases gradually along the height direction of station, and that at roof level is the minimum. With the improve of braking level, the maximum values of longitudinal displacement and acceleration of different levels increase, and the increase of acceleration at track level is the most significant.关键词
高铁客运站/站桥合一/高速列车/制动/耦合振动/动力响应Key words
high-speed railway passenger station/building-bridge integration/high-speed train/braking/coupling vibration/dynamic response分类
交通工程引用本文复制引用
方联民,朱志辉,闫铭铭,徐智伟,余志武..制动工况下"站桥合一"客站纵向动力研究[J].铁道科学与工程学报,2017,14(12):2593-2603,11.基金项目
国家自然科学基金资助项目(51378511,51678576) （51378511,51678576）
湖南省高校创新平台开放基金资助项目(13K006) （13K006）
牵引动力国家重点实验室开放课题(TPL1601) （TPL1601）
