Next Article in Journal
Chloride Resistance of Assembled Bridge Piers Reinforced with Epoxy-Coated Steel Bars
Previous Article in Journal
Context-Encoder-Based Image Inpainting for Ancient Chinese Silk
Previous Article in Special Issue
Investigation of Lateral and Longitudinal Deformation of Submarine Nuclear Power Plant Water-Intake Tunnel on Non-Uniform Soft Soil during Earthquake
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Seismic Response and Mitigation Analysis of a Subway Station in the Site with Weak Interlayers

1
State Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure, East China Jiaotong University, Nanchang 330013, China
2
School of Resources, Environment and Architectural Engineering, Chifeng University, Chifeng 024000, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2024, 14(15), 6608; https://doi.org/10.3390/app14156608 (registering DOI)
Submission received: 15 June 2024 / Revised: 19 July 2024 / Accepted: 25 July 2024 / Published: 28 July 2024
(This article belongs to the Special Issue Seismic Analysis and Design of Ocean and Underground Structures)

Abstract

Challenges related to seismic performance and seismic mitigation are more pronounced in the presence of weak interlayers compared to typical layered soil conditions. This study focuses on a double-layer double-span rectangular frame subway station structure. A coupled static–dynamic finite element analysis model of the soil-structure system is established by using the finite element software ABAQUS/CAE V 6.14. The research investigates the influence of factors such as interlayer thickness, location, and strength on the seismic response of subway station structures. Furthermore, in order to evaluate the effectiveness of FPB in mitigating seismic effects in the weak interlayer ground, two different schemes are proposed in this paper. One is the structure without FPB and the other is the structure with FPB on the top of the central column. The findings reveal that weak interlayers exert a significant influence on the seismic response of subway station structures, especially when these lower-strength weak interlayers are located within the central portion of the subway station structure and exhibit considerable thickness. The FPB on the top of the central column can reduce the overall lateral stiffness of the subway station structure. This, in turn, results in a slight increase in the deformation of sidewall and inter-story displacement angles, accompanied by a marginal exacerbation of sidewall damage. However, the implementation of FPB effectively reduces the deformation of the central column and substantially mitigates the extent of damage to the central column.
Keywords: weak interlayer; subway station structure; friction pendulum bearing; numerical simulation; seismic response weak interlayer; subway station structure; friction pendulum bearing; numerical simulation; seismic response

Share and Cite

MDPI and ACS Style

Xu, Z.; Li, C.; Xia, Z.; Han, R. Seismic Response and Mitigation Analysis of a Subway Station in the Site with Weak Interlayers. Appl. Sci. 2024, 14, 6608. https://doi.org/10.3390/app14156608

AMA Style

Xu Z, Li C, Xia Z, Han R. Seismic Response and Mitigation Analysis of a Subway Station in the Site with Weak Interlayers. Applied Sciences. 2024; 14(15):6608. https://doi.org/10.3390/app14156608

Chicago/Turabian Style

Xu, Zigang, Chunyu Li, Zongyao Xia, and Runbo Han. 2024. "Seismic Response and Mitigation Analysis of a Subway Station in the Site with Weak Interlayers" Applied Sciences 14, no. 15: 6608. https://doi.org/10.3390/app14156608

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop