期刊
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
卷 26, 期 8, 页码 2485-2496出版社
KOREAN SOC MECHANICAL ENGINEERS
DOI: 10.1007/s12206-012-0630-1
关键词
High-speed train; Continuous girder bridge; Ground vibration; Prediction method
资金
- National Natural Science Foundation of China [51108023]
- Ph.D. Programs Foundation of Ministry of Education of China [20090009120021]
- Fundamental Research Fund of Beijing Jiaotong University [2011JBM088]
This paper develops a method based on a semi-analytical/FEM model to predict the ground vibrations induced by high-speed train running through continuous girder bridge. The prediction method has two steps: the solution of reaction on top of pier and the solution of ground vibrations. The reaction on pier top is solved by the semi-analytical dynamic interaction model for train-track-continuous girder bridge system, taking the dynamic characteristics of train, track, and bridge into account. The solution of ground vibrations is accomplished by establishing the 3-dimensional pile foundation-soil finite element model and then applying the negative reaction force got from pier top to the pile foundation-soil model. The effectiveness of the presented model is verified by comparing with other existed results.
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