Dynamic response limit of high-speed railway bridge under earthquake considering running safety performance of train

Due to the wide railway network and different characteristics of many earthquake zones in China, considering the running safety performance of trains (RSPT) in the design of high-speed railway bridge structures is very necessary. In this study, in order to provide the seismic design and evaluation m...

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Bibliographic Details
Published in:Journal of Central South University Vol. 28; no. 3; pp. 968 - 980
Main Authors: Liu, Xiang, Jiang, Li-zhong, Xiang, Ping, Lai, Zhi-peng, Feng, Yu-lin, Cao, Shan-shan
Format: Journal Article
Language:English
Published: Changsha Central South University 01.03.2021
Springer Nature B.V
Subjects:
Bridges
Coefficient of variation
Derailments
Dynamic response
Earthquakes
Engineering
Ground motion
High speed rail
Mathematical analysis
Metallic Materials
Rail transportation
Railway bridges
Safety
Seismic design
Seismic response
指标限值
high-speed railway bridge
行车安全
高速铁路桥梁
抗震设计
seismic design
running safety performance
measure limit
ISSN:2095-2899, 2227-5223
Online Access:Get full text
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Summary:Due to the wide railway network and different characteristics of many earthquake zones in China, considering the running safety performance of trains (RSPT) in the design of high-speed railway bridge structures is very necessary. In this study, in order to provide the seismic design and evaluation measure of the bridge structure based on the RSPT, a calculation model of RSPT on bridge under earthquake was established, and the track surface response measure when the derailment coefficient reaches the limit value was calculated by referring to 15 commonly used ground motion (GM) intensity measures. Based on the coefficient of variation of the limit value obtained from multiple GM samples, the optimal measures were selected. Finally, the limit value of bridge seismic response based on RSPT with different train speeds and structural periods was determined.
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content type line 14
ISSN:2095-2899
2227-5223
DOI:10.1007/s11771-021-4657-2