Seismic Response Analysis of Concrete Box-Type Subgrade in High-Speed Railways
Source abstract
Abstract
China is prone to frequent earthquakes, impacting both the construction and operation of high-speed railways. The seismic response analysis is essential for the promotion and structural optimization of novel box-type subgrade structures. This paper develops a nonlinear integrated spatial dynamic model of a ballastless track and box-type subgrade, investigating structural vibrations under multi-dimensional seismic actions using the time–frequency domain method. A seismic performance analysis of the structure is conducted to examine the influence of seismic intensity on its seismic response. Results indicate that the box-type subgrades exhibit good integrity under seismic actions, primarily undergoing rigid body motion, with forces in all components well below design strength, meeting the Chinese seismic fortification requirements. Compared to traditional simply supported beams, box-type subgrades show better adaptability to earthquakes. As seismic intensity increases, vibrations and deformations of box-type subgrades change linearly, while vibrating forces increase nonlinearly.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Geotechnical Engineering and Underground Structures · Geotechnical Engineering and Soil Stabilization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China
Beijing Key Laboratory of Rail Transit Engineering, Beijing Jiaotong University, Beijing 100044, China
China Railway Design Corporation Limited, Tianjin 300308, China
School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China
Department of Mechanical Engineering, KLS Gogte Institute of Technology, Belagavi 590008, India
Funding
Open Project Fund of the National Engineering Research Center for Digital Construction and Evaluation Technology of Urban Rail Transit · Basic Scientific Research Operating Expenses of Central Universities · The National Key Research and Development Program of China
References (40)
Show source-provided references
1. (2015). China’s Ground Motion Parameter Zoning Map (Standard No. GB 18306-2015).
2. Earthquake response of continuous girder bridge for high-speed railway: A shaking table test study10.1016/j.engstruct.2018.11.047 ↗
3. Study on the settlement limit of high-speed railway box subgrade
4. Analysis of static and dynamic characteristics of high-speed railway flange frame box subgrade
5. Calculation method for high-fill box-type embankment structures of railways
6. Smart materials and technologies for sustainable concrete construction10.1016/j.dibe.2023.100177 ↗
7. Stability of slender beams and frames resting on 2D elastic half-space10.1007/s00419-012-0694-5 ↗
8. Static analysis of shear flexible beams and frames in adhesive contact with an isotropic elastic half-plane using a coupled fe-bie model10.1016/j.engstruct.2015.09.017 ↗
9. Incremental analysis of elastoplastic beams and frames resting on an elastic half-plane10.1061/(ASCE)EM.1943-7889.0001331 ↗
10. Rotational seismic excitation effects on CIDH pile-supported bridge piers10.1016/j.engstruct.2017.01.071 ↗
11. Longitudinal seismic response of ballastless railway bridges considering traveling wave effect
12. Effects of track structure on seismic behavior of isolation system bridges10.2219/rtriqr.46.238 ↗
13. Seismic response analysis of high-speed railway bridges based on rail-bridge integrated model
14. Transverse seismic pounding effect for simply-supported girder bridges of high-speed railway considering track constraint
15. Dynamic response of CRTSIII slab ballastless track system on bridge with multi-dimensional earthquake action
16. Study of nonlinear time-history analysis on railway portal pier
17. Design and research of large span steel box portal pier for high speed railway
18. (2009). Code for Seismic Design of Railway Engineering (Standard No. GB50111-2006).
19. Research on seismic performance and design method for high-speed railway bridges based on track-bridge integrated model
20. Seismic response characteristics of high-speed railway portal piers, bridge-track systems
21. Application of EPS Geofoam below Soil–Steel Composite Bridge Subjected to Seismic Excitations10.1061/JGGEFK.GTENG-12674 ↗
22. Lu, R. (2001). Comparative Analysis of Simplified Seismic Calculation Methods for Pile Group Bridge Structures. [Master’s Thesis, Tongji University].
23. Research on simplified seismic calculation models for railway gravity piers
24. Research on the Excitation Input Mode in Seismic Analysis of Bridges
25. Shear performance of horizontally curved steel box bridge girders under hydrocarbon fire exposure conditions: Numerical investigation and design implications10.1016/j.tws.2024.112479 ↗
26. (2012). Specifications for the Design of Railway Track without Joints (Standard No. TB0015-2012).
27. Seismic response of railway bridge pile foundations under cap-pier-soil interaction
28. Vibration characteristics of pile-net composite foundation under the combined action of earthquakes and high-speed trains
29. Lifetime fatigue cracking behavior of weld defects in orthotropic steel bridge decks: Numerical and experimental study10.1016/j.engfailanal.2024.108993 ↗
30. Experimental and numerical investigation for steel shear panels of modular bridge10.1016/j.jcsr.2024.108743 ↗
31. Numerical assessment of effective width in steel-concrete composite box girder bridges with partial interaction10.1016/j.engstruct.2021.112333 ↗
32. The Influence of the Refinement of Track Structure Modeling on the Seismic Vulnerability of High-Speed Railway Continuous Beam Bridges
33. Experimental Study on Dynamic Performance of Ballastless Track Railway Bridges with Common Spans
34. Nonlinear Interaction between Bridge and Ballastless Track under Multi-Dimensional Seismic Actions
35. Dynamic Response Analysis of Ballastless Track Pile Slab Structure Subgrade under Seismic Load
36. Seismic Response Analysis of High-Speed Railway Coupled Vehicle-Bridge System
37. Analysis of Vertical Resonance Conditions for Simplified Supported Box Beams with Common Spans in High-Speed Railways
38. National Earthquake Intensity Rapid Reporting and Early Warning Project
39. Selection of Computational Parameters for Earthquake Intensity Rapid Reporting and Early Warning System
40. Wang, Y., Xiao, H., Zhang, Z., Guo, X., and Liu, Q. (2024). Self-supervised representation learning of metro interior noise based on variational autoencoder and deep embedding clustering. Comput.-Aided Civ. Infrastruct. Eng., 1–20.10.1111/mice.13336 ↗