Dynamic Response of High-Speed Railway Pier Based on Time-Dependent Deterioration of Concrete

DOI

10.2991/978-94-6463-658-1_46How to use a DOI?

Keywords

simply supported beam pier; time-dependency deterioration of concrete; dynamic response; local maximum synchronous extrusion transform

Abstract

To study the dynamic characteristics of simply supported girder piers of high-speed railroads under long-term deterioration, the impact of concrete deterioration on the dynamic response of piers is analyzed based on the theory of concrete strength degradation. The time-frequency and energy distribution characteristics of the vibration acceleration of piers are further revealed using the Local Maximum Synchrosqueezing Transform (LMSST). The results show that under the high-speed railway train load, the vertical acceleration of the piers in service for 40~100 years increased by 29.8%, and the lateral acceleration increased by 62.7%. LMSST analysis shows that the vertical and lateral vibration energies increased by 17.5% and 64%, respectively, during the period of 60~100 years. The research results can provide a reference for high-speed railway pier performance assessment, safety warnings, and maintenance.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Haiyang Xie
AU  - Baoxin Jia
PY  - 2025
DA  - 2025/03/03
TI  - Dynamic Response of High-Speed Railway Pier Based on Time-Dependent Deterioration of Concrete
BT  - Proceedings of the 2024 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)
PB  - Atlantis Press
SP  - 463
EP  - 469
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-658-1_46
DO  - 10.2991/978-94-6463-658-1_46
ID  - Xie2025
ER  -