Study on Reasonable Length of Ballasted-CRTS II Ballastless Track Transition Section on High-Speed Railway Bridge

Abstract:

In view of ballasted-CRTSⅡ ballastless track transition section on the bridge of Beijing-Shanghai high-speed railway, the influence of track random irregularity and pier foundation settlement difference on acceleration and stability index of locomotive body are discussed by the finite element method. And then, by using the index of rail deflection gradient to describe the law of dynamic interaction, rail-wheel dynamic response, attenuation distance of locomotive body acceleration and change of sleeper pressure caused by under-rail stiffness difference are analyzed. Finally, the recommended value of reasonable length of transition section is put forwarded.

• Periodical: Advanced Materials Research (Volumes 671-674)
• Pages: 1301-1305
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.671-674.1301
• Online since: March 2013
• Authors: Yu Liu, Guo Tang Zhao
• Keywords: Ballasted Track, Ballastless Track, Foundation Settlement Difference, Transition Section, Under-Rail Stiffness Difference

References

[1] Lei Xiao-yan: Influences of Track Transition on Track Vibration Due to the Abrupt Change of Track Rigidity[J]. China Railway Science, 2006, 27(5): 42~45.

DOI: 10.1201/9781003209379-23

[2] Luo Qiang. Dynamic Performance Analyses and Experiment Study on Bridge/Approach Embankment of High-speed Railway[D]. Doctor Degree Dissertation, Southwest Jiaotong University, Chengdu, (2003).

[3] David Read and Dingqing Li. DESIGN OF TRACK TRANSITIONS [R]. Research Results Digest 79, TTCI, October (2006).

[4] Ye Xiang-yu. Estimate and Deformation Regularity Research on Subgrade in Roadbed-bridge Transition Section of ShuoHuang Railway[D]. Master Degree Dissertation, Beijing Jiaotong University, Beijing, (2007).

[5] Meng Fan-hui. 3D Dynamical Study on Bridge-subgrade Transition[D]. Master Degree Dissertation, Beijing Jiaotong University, Beijing, (2007).

[6] Li Qi-wei. Dynamic Research of Roadbed-bridge Transition Section[D]. Master Degree Dissertation, Beijing Jiaotong University, Beijing, (2007).

[7] Chen Xue-hua. Research on Dynamic Characteristics of Subgrade Transition Zone for Ballastless Tracks on High Speed Railway[D]. Doctor Degree Dissertation, Central South University, Changsha, (2006).

[8] Kong Guang. Research on Uniformity Stiffness of Road-Culvert Transition Section in Raising Speed Existing Rail Line[D]. Master Degree Dissertation, Beijing Jiaotong University, Beijing, (2006).

[9] Zhao Guo-tang, Liu Yu, Li Cheng-hui, Wei You-xin. The dynamic analysis of transition section of ballasted and ballastless track on high-speed railway bridge[C]. The International Conference of the High Speed Railway Engineering Design, Construction, and Maintenance Technology (ICHRE), (2009).

DOI: 10.4028/www.scientific.net/amr.671-674.1301