Abstract As a new station structure, the column-free atrium style subway station deletes central columns and set up openings in the middle plate to expand the effective space and increase the efficiency of transfer. To understand the response characteristics of the column-free atrium style subway station with the action of an earthquake, the integral response displacement method suitable for the underground structure with a complex face was used for quasistatic seismic analysis, and the distribution of internal force is compared among large-span column-free atrium style subway stations, general column subway stations and column-free subway stations, all of which have the same face shape. The results show that if the face shape is identical, the axial face, shearing force and bending moment of a large-span column-free atrium style subway station are higher than those of a column-free station and a general column station; the weak position of a column-free atrium style subway station is the connection between the bottom plate and the side walls, and the connection between the middle plate and the side walls is more disadvantageous than traditional subway stations.
Abstract：
As a new station structure, the column-free atrium style subway station deletes central columns and set up openings in the middle plate to expand the effective space and increase the efficiency of transfer. To understand the response characteristics of the column-free atrium style subway station with the action of an earthquake, the integral response displacement method suitable for the underground structure with a complex face was used for quasistatic seismic analysis, and the distribution of internal force is compared among large-span column-free atrium style subway stations, general column subway stations and column-free subway stations, all of which have the same face shape. The results show that if the face shape is identical, the axial face, shearing force and bending moment of a large-span column-free atrium style subway station are higher than those of a column-free station and a general column station; the weak position of a column-free atrium style subway station is the connection between the bottom plate and the side walls, and the connection between the middle plate and the side walls is more disadvantageous than traditional subway stations.
XU Yonghao
.Study on Seismic Resistance of Column-free Atrium Style Subway Station Based on the Integral Response Displacement Method[J] MODERN TUNNELLING TECHNOLOGY, 2022,V59(6): 77-85
2022, Vol. 59 