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  3D Seismic Response Analysis of a Metro-station with Atrium in Soft Soils

  A novel metro station, in the city of Shanghai, is firstly designed and constructed in soft soils. The station is composed of two different structure sections, i.e. a 2-storey and 3-span structure, and a large opening structure. A full 3D soil-structure FE model is established to analyze dynamic responses of the metro station subjected to different seismic input waves. Results indicate that although PGA of the seismic waves is the same, seismic responses of the structure caused by different seismic waves are quite different. Therefore, different seismic waves inputs should be considered in seismic design of the metro station in soft soils.

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