Damage and failure of underground subway stations under different soil constraint conditions.

ABSTRACT: Investigations from past earthquakes have shown that underground subway stations can suffer excessive deformation under strong seismic loads, leading to the damage of critical components and the collapse of structures. This study presents the results of finite element analyses on the seismic damage of underground subway stations installed under different soil constraint conditions. The plastic hinge distribution and damage characteristics of cut and cover double-storey and three-storey subway stations are analyzed using the finite element method software ABAQUS. Combined with the static analysis results of the column sections, a discriminant method for bending plastic hinges is presented. The numerical results show that the collapse of the subway stations begins with the failure of the bot

SUBMITTER: Zhang JK 

PROVIDER: S-EPMC10079066 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature