Applied Mathematics and Nonlinear Sciences
Journal license

Journal

Applied Mathematics and Nonlinear Sciences


Volume
& Issue

Volume 8, Issue 2


Published
on

October 15, 2023


Pages


DOI

Article

Optimal seismic solution design for underground frame structure of subway station considering uniform damage

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Authors

Hongshuo Sun Affiliation:
College of Railway Engineering, Zhengzhou Railway Vocational and Technical College, Zhengzhou, Henan, 451460, China.
and Hongtao Dai Affiliation:
College of Railway Engineering, Zhengzhou Railway Vocational and Technical College, Zhengzhou, Henan, 451460, China.


Abstract

Based on the dynamic finite element theory, this paper establishes a fully coupled Mohr-Coulomb plastic finite element model of the soil ontology with the A metro station structure as the research object, conducts a nonlinear dynamic response analysis of the model structure, studies the variation of the seismic response of the model under different vibrations, soil material parameters and concrete parameters, and analyzes the influence of the station structure form on the displacement. In EL-2 condition, the first pair displacement of the S3 measurement point of the rectangular station is 5.695 mm, and the displacement of the arch-shaped station is 2.5 mm less than that of the rectangular station. The relative displacement of soil shear modulus with Gmax=200 MPa is 2.3 mm less than that of soil shear modulus with Gmax=80 MPa in the case of sidewall height of 3 m, which indicates that both the shape of station and soil stiffness has an effect on the seismic performance of the station. Influence on the seismic performance of the station. The research in this paper has an important reference value for the seismic design of underground frames of subway stations.


Keywords

Finite element model, Dynamic response, Uniform damage, Nonlinear analysis, Seismic performance, 65D17


Citation

Sun, H. & Dai, H. (2023). Optimal seismic solution design for underground frame structure of subway station considering uniform damage. Applied Mathematics and Nonlinear Sciences, 8(2). https://doi.org/10.2478/amns.2023.2.00626

Published by: Engineering Journals

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