Effect of lateral deformations of a simply-supported beam bridge on high-speed railway traffic safety under earthquake action

Wei Huang, Yuehan Sun, Binghui Li, Qiang Zhang, Junhu Shao and Yulin Zhan ()
Additional contact information
Wei Huang: Southwest Jiaotong University
Yuehan Sun: Southwest Jiaotong University
Binghui Li: Southwest Jiaotong University
Qiang Zhang: Ziyang Housing and Urban-Rural Development Bureau
Junhu Shao: Chengdu University
Yulin Zhan: Southwest Jiaotong University

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2024, vol. 120, issue 12, No 8, 10635-10668

Abstract: Abstract To study the influence of the lateral deformations of a simply-supported beam bridge on the safety of high-speed railway train operations under earthquake action, this study adopted a three-span simply-supported beam bridge with 32-m spans as an example. Finite element software ANSYS and multi-body dynamics software SIMPACK were used to establish a coupled train-bridge dynamic model subjected to seismic excitations. By adopting different ground motions and changing the peak ground acceleration (PGA) and the train speed, the effects of different earthquakes and train speeds on the train driving safety were analyzed. Several conclusions were obtained. First, the trends in train derailment coefficient, wheel load reduction rate, lateral horizontal wheelset forces, vertical accelerations of the car body, lateral accelerations of car body, and other dynamic indices were similar under different ground motions, but the actual values were different. Second, the PGA had a significant impact on the train derailment coefficient, wheel load reduction rate, lateral horizontal wheelset forces, and lateral accelerations of the car body, but little effect on the vertical accelerations of the car body. Third, the train speed affected the train derailment coefficient, wheel load reduction rate, lateral horizontal wheelset forces, vertical accelerations of the car body, and lateral accelerations of the car body, and these dynamic performance indices were positively correlated with the train speed. Fourth, in case of the earthquake with a PGA of 0.3 g, a high-speed train would have to travel slower than at 280 km/h to ensure the safety and comfort of the ride.

Keywords: Earthquake; High speed railway; Train-bridge coupled vibrations; Driving safety (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://link.springer.com/10.1007/s11069-024-06626-w Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:nathaz:v:120:y:2024:i:12:d:10.1007_s11069-024-06626-w

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/11069

DOI: 10.1007/s11069-024-06626-w

Access Statistics for this article

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards is currently edited by Thomas Glade, Tad S. Murty and Vladimír Schenk

More articles in Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards from Springer, International Society for the Prevention and Mitigation of Natural Hazards
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().