采用榫式柱端连接的地铁车站抗震性能研究

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Abstract Research purposes: To improve the deformation capacity and construction efficiency of center columns in assembled subway stations, a mortise-and-tenon prefabricated column end connection was proposed. In this paper, ABAQUS finite element software was used to analyze the damage mode, force mechanism and seismic performance of prefabricated column end connections, and to compare the difference in dynamic response between assembled subway stations with mortise-and-tenon prefabricated column end connections and cast-in-place subway stations under seismic action.
Research conclusions: (1) The tenon-bolt column end joints have better load carrying capacity, deformation capacity, and energy dissipation capacity, and better seismic performance. (2) Compared with cast-in-place subway stations, the structural interstory displacement angle of the assembled subway station with tenon-bolt column end joints increases slightly, but the tensile damages of the center columns and the connection of the top base plate with the side walls are smaller. (3) The design of tenon-bolt joints effectively enhances the center columns and the connection of top base plate with side walls by releasing some of the column bottom constraints, which effectively improves the safety of the center column and enhances the collapse resistance of the structure. (4) The results of this paper have reference value for the application and promotion of dry prefabricated column end connections in subway stations.

Key words： subway station prefabricated column end joints seismic performance dynamic response numerical simulation

Received: 12 June 2023

PACS:

TU375.3

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	Articles by authors
	XIONG Zhongming
	QIAN Hao
	CHEN Xuan
	TIAN Penggang
	NIU Jianhui
	XIE Zhixun

Cite this article:

XIONG Zhongming,QIAN Hao,CHEN Xuan, et al. Study on Seismic Performance of Subway Station with Tenon Column End Joints[J]. Journal of Railway Engineering Society, 2024, 41(11): 96-103.

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https://tdgcxb.crec.cn/EN/ OR https://tdgcxb.crec.cn/EN/Y2024/V41/I11/96

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