Assessing Ground Motion Intensity Measures and Structural Damage Measures in Underground Structures: A Finite Element Analysis of the Daikai Subway Station

Author:

Liu Tong1,Han Yulong2,Wang Qinghe2,Yuan Yong3ORCID

Affiliation:

1. School of Management, Shenyang Jianzhu University, Shenyang 110168, China

2. School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China

3. State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China

Abstract

Research on the characterization of ground motion intensity and damage of underground structures is limited, while reasonable selection of ground motion intensity measures and structural damage measures is a crucial prerequisite for structural seismic performance evaluation. In this study, a two-dimensional finite element model of soil and structures was established based on the Daikai subway station in Japan. Through incremental dynamic analysis, 32 ground motion intensity measures and seven structural damage measures were comprehensively evaluated from seven properties, including efficiency, practicality, proficiency, scaling robustness, relativity, hazard computability, and sufficiency. According to the analysis results, the purpose and significance of each property during measure optimization were hierarchically sorted out. The results show that peak ground acceleration, acceleration spectrum intensity, and sustained maximum acceleration are recommended as ground motion intensity measures, while maximum inter-story drift ratio, column end displacement angle, and two-parameter measures are recommended as the structural damage measures for seismic performance evaluation of the shallow-buried subway station. Furthermore, measure optimization approaches are proposed as follows: the basic selection of IMs should satisfy scaling robustness, hazard computability, and sufficiency to site condition; the optimal selection of IMs is suggested to be evaluated mainly through efficiency, practicality and proficiency, and verified through relativity and relative sufficiency between IMs. The optimal selection of DM is suggested to be evaluated through four properties, including efficiency, practicality, proficiency, and relativity.

Funder

Liaoning Doctoral Scientific Research Foundation of China

National Natural Science Foundation of China

Publisher

MDPI AG

Reference42 articles.

1. Fragility analysis of a subway station structure by incremental dynamic analysis;Liu;Adv. Struct. Eng.,2017

2. Seismic fragility assessment of the daikai subway station in layered soil;Zhong;Soil Dyn. Earthq. Eng.,2020

3. Statistical numerical method for determining seismic performance and fragility of shallow-buried underground structure;Zhuang;Tunneling Undergr. Space Technol.,2021

4. Seismic vulnerability analysis of subway station embedded in saturated sand layers;Xu;Eng. Mech.,2021

5. Effect of ground motion characteristics on seismic fragility of subway station;Jiang;Soil Dyn. Earthq. Eng.,2021

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