3D Seismic Response Analysis of Large-Span Subway Station in Soft Soil Area

摘要

The seismic performance of subway station is raising more and more attention from the engineering circle.At present, there are various seismic design methods of different underground structures, each with its pros and cons.In this paper, the 3D seismic response analysis of a large-span subway station with irregular structure arrangement is conducted using the dynamic time-history analysis method.Furthermore, the model with different seismic loadings is analyzed to study the seismic responses of this structure, and the results indicate that the horizontal transverse seismic motion has great effect on the structure and the most precarious position occurs on the atrium section.