Dynamic Analysis of Bridge-approach Embankment Transition Segment
Dynamic responses of coupled system were analyzed when the speed of train was 350km/h and the transition was filled with graded broken stones mixed 5% cement.Results indicate that setting form of bridge-approach embankment section has little effect on dynamic responses,thus designers can choose it on account of practical circumstances.Based on the study from vehicle-track dynamics,we suggest that the coefficient of subgrade reaction (K30) should be greater than 190MPa within 0-5m zone behind abutment and be greater than 150MPa in other zones.
bridge-approach embankment section numerical model track deflection angle analysis
Zhenxia Li Yuanzhao Chen
School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450011, China
国际会议
郑州
英文
719-722
2012-09-22(万方平台首次上网日期,不代表论文的发表时间)