Seismic Responses of a High-speed Railway (HSR) Bridge and Track Simulation under Longitudinal Earthquakes

The seismic vulnerability of high-speed railway (HSR) bridges may be overestimated or underestimated when the track structure is oversimplified in a finite element model. Thus, the author established a track-bridge model considering CRTS II slab ballastless track and a trackless-bridge model. The ef...

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Bibliographic Details
Published inJournal of earthquake engineering : JEE Vol. 26; no. 9; pp. 4449 - 4470
Main Authors Wei, Biao, Wang, Wei-Hao, Wang, Peng, Yang, Tian-Han, Jiang, Li-Zhong, Wang, Teng
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 04.07.2022
Taylor & Francis Ltd
Subjects
Bridges
Components
Constraint modelling
CRTS II slab ballastless track
Earthquake damage
Earthquakes
Evaluation
Finite element method
High speed rail
high-speed railway (HSR) bridge
Mathematical models
Modelling
Railway engineering
Risk assessment
Seismic activity
Seismic hazard
Seismic response
Seismic surveys
seismic vulnerability analysis
track constraint
track-bridge system
trackless-bridge system
Vulnerability
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Summary:The seismic vulnerability of high-speed railway (HSR) bridges may be overestimated or underestimated when the track structure is oversimplified in a finite element model. Thus, the author established a track-bridge model considering CRTS II slab ballastless track and a trackless-bridge model. The effect of track constraint on the seismic vulnerability of various bridge components and overall system was evaluated by comparing the seismic vulnerability curves of different models under longitudinal earthquakes. The track structure itself was also evaluated, and the multiple components of the track structure were found to be under threat of seismic damage and needed seismic risk assessment.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1363-2469
1559-808X
DOI:10.1080/13632469.2020.1832937