Seismic vulnerability assessment of multi-storey subway station structure

The safety of underground structure under seismic load is an important basis of the normal operation of underground rail transit system. Structural seismic vulnerability assessment based on incremental dynamic analysis method can evaluate the probability of the structure exceeding a certain limit st...

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Main Authors: Liu Tong, Li Zhixin, Wang Qinghe, Xu Huaiyu
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/69/e3sconf_gceece2021_02030.pdf
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author Liu Tong
Li Zhixin
Wang Qinghe
Xu Huaiyu
author_facet Liu Tong
Li Zhixin
Wang Qinghe
Xu Huaiyu
author_sort Liu Tong
collection DOAJ
description The safety of underground structure under seismic load is an important basis of the normal operation of underground rail transit system. Structural seismic vulnerability assessment based on incremental dynamic analysis method can evaluate the probability of the structure exceeding a certain limit state under a specific seismic intensity in terms of probability. In this paper, the seismic vulnerability of a multi-storey subway station structure is evaluated using this method, and a two-dimensional finite element model of both soil and structure is established by finite element software ABAQUS. The vulnerability curve is obtained through incremental dynamic analysis and mathematical statistics. Based on this curve, the probabilities of the structure exceeding four seismic limit states are obtained under the design seismic intensity and the rarely occurred seismic intensity at 7 degree. Results show that this station may attain slight damage under design seismic intensity of 7 degree, and may attain life safety at the rarely occurred seismic intensity at 7 degree.
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spelling doaj.art-121d1bc0ffc24fa7a29ad174aa30096a2022-12-21T18:46:51ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012930203010.1051/e3sconf/202129302030e3sconf_gceece2021_02030Seismic vulnerability assessment of multi-storey subway station structureLiu Tong0Li Zhixin1Wang Qinghe2Xu Huaiyu3School of Management, Shenyang Jianzhu UniversityShenyang Urban Construction Tianhe Real Estate Company LimitedSchool of Civil Engineering, Shenyang Jianzhu UniversitySchool of Civil Engineering, Shenyang Jianzhu UniversityThe safety of underground structure under seismic load is an important basis of the normal operation of underground rail transit system. Structural seismic vulnerability assessment based on incremental dynamic analysis method can evaluate the probability of the structure exceeding a certain limit state under a specific seismic intensity in terms of probability. In this paper, the seismic vulnerability of a multi-storey subway station structure is evaluated using this method, and a two-dimensional finite element model of both soil and structure is established by finite element software ABAQUS. The vulnerability curve is obtained through incremental dynamic analysis and mathematical statistics. Based on this curve, the probabilities of the structure exceeding four seismic limit states are obtained under the design seismic intensity and the rarely occurred seismic intensity at 7 degree. Results show that this station may attain slight damage under design seismic intensity of 7 degree, and may attain life safety at the rarely occurred seismic intensity at 7 degree.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/69/e3sconf_gceece2021_02030.pdf
spellingShingle Liu Tong
Li Zhixin
Wang Qinghe
Xu Huaiyu
Seismic vulnerability assessment of multi-storey subway station structure
E3S Web of Conferences
title Seismic vulnerability assessment of multi-storey subway station structure
title_full Seismic vulnerability assessment of multi-storey subway station structure
title_fullStr Seismic vulnerability assessment of multi-storey subway station structure
title_full_unstemmed Seismic vulnerability assessment of multi-storey subway station structure
title_short Seismic vulnerability assessment of multi-storey subway station structure
title_sort seismic vulnerability assessment of multi storey subway station structure
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/69/e3sconf_gceece2021_02030.pdf
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AT lizhixin seismicvulnerabilityassessmentofmultistoreysubwaystationstructure
AT wangqinghe seismicvulnerabilityassessmentofmultistoreysubwaystationstructure
AT xuhuaiyu seismicvulnerabilityassessmentofmultistoreysubwaystationstructure