摘要
在模拟了铁路轨道不平顺和高速列车振动荷载的基础上,分析了铁路路基动力响应(位移、加速度、应力)在列车荷载作用下线路横断面的分布规律,得到路基动力响应的横断面分布图,找出了路基动力响应的最不利位置.将模拟计算出的路基动力响应数值与秦沈客运专线现场测试试验的实测数据对比,结果一致.
Based on the imitating of railway track irregularity and the vibration load of high-speed railroad train,the railway subgrade＇ s dynamic responses （including stress, displacement, acceleration） distributed rule under the high speed train load is analyzed, the road cross section＇s distributing diagram of the railway＇s subgrade＇s dynamic stress responses is gotten, the most disadvantageous position of the railway＇ s subgrade＇ s dynamic stress response is found out. The testing dates of the Qin-Shen special line for passenger transport is contrasted with the accounting dates, both of the regulations are consistent.
出处
《华北水利水电学院学报》
2007年第4期30-32,共3页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
秦沈客运专线
铁路路基
动力响应分析
有限元分析
分布图
Qin-Shen special llne for passenger transport
railway subgrade
dynamic response analysis
finite element analysis
distributing diagram
