Effect of ground motion characteristics on seismic fragility of subway station

Jiang, Jiawei; Nggar, Hesham.M. El; Xu, Chengshun; Zhong, Zilan; Du, Xiuli

doi:10.1016/j.soildyn.2021.106618

Cited by 44 publications

(14 citation statements)

References 28 publications

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“…Jiang et al [90] investigated the effect of ground motion characteristics on the seismic fragility of subway stations in soft soils. The Caofang subway station in Beijing, China, was selected as a case study.…”

Section: Mountain Tunnels and Tunnels In Rockmentioning

confidence: 99%

“…In particular, the pushover analyses were conducted by using 3D numerical models of the examined configurations in FE code ABAQUS and introducing loads simulating the effects of both the horizontal and vertical earthquake excitation (the latter set as two-thirds of horizontal loading). Using the IDA results and PGA as IM, Jiang et al [90] presented a series of PGA-based fragility curves. The use of near-field ground motions led to a higher seismic fragility of the station, compared to the cases where far-field ground motions were examined.…”

Section: Mountain Tunnels and Tunnels In Rockmentioning

confidence: 99%

“…The differences were generally attributed to the effects of ground motion characteristics on the response of the surrounding ground. Jiang et al [90] investigated the effect of ground motion characteristics on the seismic fragility of subway stations in soft soils. The Caofang subway station in Beijing, China, was selected as a case study.…”

Section: Mountain Tunnels and Tunnels In Rockmentioning

confidence: 99%

“…Some studies used 2D numerical models of the examined ground structure configurations to perform pushover analyses, to estimate the structural capacity of, and set the thresholds for, the damage states to develop fragility functions. In most cases the general-purposed FE code ABAQUS was employed to perform the analyses (i.e., more than half of the studies) [56,[63][64][65][66]82,84,85,[89][90][91][92][93][94]. Other FE codes, such as PLAXIS 2D [61], MIDAS [51,60], and SAP2000 [79,80] were also used.…”

Section: Numerical Codes and Constitutive Models Used In Analytical S...mentioning

confidence: 99%

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Developments in Seismic Vulnerability Assessment of Tunnels and Underground Structures

et al. 2022

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Underground structures are being constructed at an increasing rate in seismic prone areas, to facilitate the expanding needs of societies. Considering the vital role of this infrastructure in densely populated urban areas and interurban transportation networks, as well as the significant losses associated with potential seismically induced damage, its assessment against seismic hazard is of great importance for stakeholders, operators, and governmental bodies. This paper presents a state-of-the-art review of current developments in the assessment of seismic vulnerability of tunnels and underground structures. Methods for the development of fragility functions for the assessment of bored tunnels in rock or alluvial, and cut and cover tunnels and subways in alluvial, against ground seismic shaking and earthquake-induced ground failures are presented. Emphasis is placed on the estimation of the capacity of the examined structures, the selection of appropriate intensity measures to express seismic intensity, the development of rational probabilistic seismic demand models and the estimation of epistemic and aleatoric uncertainties, related to the seismic fragility of underground structures. Through the discussion, acknowledged gaps in the relevant literature are highlighted.

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Section: Mountain Tunnels and Tunnels In Rockmentioning

confidence: 99%

Section: Mountain Tunnels and Tunnels In Rockmentioning

confidence: 99%

Section: Mountain Tunnels and Tunnels In Rockmentioning

confidence: 99%

Section: Numerical Codes and Constitutive Models Used In Analytical S...mentioning

confidence: 99%

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Developments in Seismic Vulnerability Assessment of Tunnels and Underground Structures

et al. 2022

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“…The FTP server is essentially a long-connected and stateful service based on Transmission Control Protocol (TCP), which is usually single [5]. Additionally, new features, such as microservices, virtualization, and containerization also require the infrastructure layer to provide the function of sharing data volumes and files [6]. In the subway MLC system, there are mainly four kinds of data files [7]: (1) data interface between MLC and subordinate systems, which is stipulated by the urban subway network specification and contains messages and data files, among which the transaction data files and MLC parameter files are usually transmitted over FTP; (2) data interface between MLC and the subway external system [8], which is jointly negotiated by the MLC system and the external system and can be presented invarious forms, such as messages, message queues, and files.…”

Section: Introductionmentioning

confidence: 99%

Optimized Design of Multilines Center of Subway AFC System via Distributed File System and Bayesian Network Model

Fang

Jiang

Lin³

et al. 2021

Journal of Sensors

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Automatic fare collection system (AFCS) is a modern, automatic, networked toll collection system for rail transit ticket sales, collection, billing, charging, statistics, sorting, and management. To realize the subway transit networking operation, this paper designs the subway AFCS based on a distributed file system (DFS), namely, Gluster File System (GlusterFS). Firstly, the multiline center (MLC) in the subway AFCS is designed to analyze the status and current situation of distributed file processing in subway MLC system; secondly, the relevant technical theories are summarized, the Bayesian Network (BN) theoretical model and DFS are explored, and the principles of four DFS are comparatively analyzed; thirdly, the architecture and cluster mode of GlusterFS is expounded, and then based on GlusterFS, the architecture of subway AFCS is discussed. This paper presents several innovation points: first, the subway AFCS is designed based on GlusterFS by analyzing and aiming at the functional requirements, performance requirements, and safety requirements of the MLC subway system; second, the safety risk analysis (SRA) of AFCS is conducted from six security requirements, and a Web scanning system is designed to ensure the system data security. Finally, the design scheme is used to analyze the subway passenger flow and power consumption. The results demonstrate that the design scheme can competently adapt to three different application scenarios. Through comparison of two deployment modes of the Web scanning system, the data security Web scanning system can ensure the safe operation of the AFCS. Furthermore, the statistical analysis of subway passenger flow and power supply data shows that the proposed scheme can support the smooth operation of the subway system, which has significant practical value.

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An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using an FK-FEM hybrid approach

Zhu

et al. 2022

Front. Struct. Civ. Eng.

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Effect of ground motion characteristics on seismic fragility of subway station

Cited by 44 publications

References 28 publications

Developments in Seismic Vulnerability Assessment of Tunnels and Underground Structures

Developments in Seismic Vulnerability Assessment of Tunnels and Underground Structures

Optimized Design of Multilines Center of Subway AFC System via Distributed File System and Bayesian Network Model

An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using an FK-FEM hybrid approach

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