Development of Seismic Fragility Function for Underground Railway Station Structures in Korea

This study describes the methodology employed to construct a seismic fragility function based on a pre-existing numerical model tailored for underground stations. Employing a dynamic numerical model, a comprehensive analysis encompassing 110 distinct cases was conducted, each varying in soil depth a...

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Bibliographic Details
Published inBuildings (Basel) Vol. 14; no. 5; p. 1200
Main Authors Kwon, Sun Yong, Kim, Jongkwan, Kwak, Dongyoup, Yang, Seunghoon, Yoo, Mintaek
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2024
Subjects
Analysis
Benchmarks
Comparative analysis
Construction
damage index
Design standards
dynamic numerical analysis
Earthquake construction
Earthquake damage
Earthquakes
Emergency preparedness
Fragility
Infrastructure
Mathematical models
Numerical analysis
Numerical models
Railroads
Railway engineering
Railway stations
Risk assessment
Seismic engineering
seismic fragility function
Seismic waves
Shear strain
Soil classification
Soil depth
Stations
Underground railways
underground structure
Underground structures
South Korea
Korean Peninsula
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Summary:This study describes the methodology employed to construct a seismic fragility function based on a pre-existing numerical model tailored for underground stations. Employing a dynamic numerical model, a comprehensive analysis encompassing 110 distinct cases was conducted, each varying in soil depth and classification. Seismic waves, conforming to the standard design spectrum, were utilized within these numerical analyses. The formulation of the fragility function within the constructed model follows a structured approach, segmented by damage indices and severity levels. This systematic breakdown serves to outline the fundamental framework for establishing the fragility function, providing insights into its development process. Subsequently, the derived fragility function underwent a rigorous comparative analysis against established seismic fragility functions from prior studies. This comparative assessment serves as a critical evaluation tool, allowing for an appraisal of the suitability and robustness of the newly developed fragility function in relation to existing benchmarks.
ISSN:2075-5309
2075-5309
DOI:10.3390/buildings14051200