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Date of Publication:2012-01-01

Journal:振动与冲击

Issue:9

Page Number:53-58

ISSN No.:1000-3835

Abstract:Due to the disturbance of ground adjacent building to the site, the seismic response of underground structure in the site will be influenced. The non-linear interaction finite element models were set up, which are composed of buildings, soil and underground structures. A hysteretic nonlinear soil constitutive model was used in the analysis. In the interaction finite element models were taken into account, the contact surface characteristics between the structure and soil and the impact of foundation's infinite domain. The models were analyzed numerically in time domain. The results show that the displacement response and force response of underground station structure are significantly amplified due to the existence of ground adjacent building. Additionally, a comparative study on influencial factors which affect the seismic response of underground structures was carried out. Here, the influencial factors include natural periods of adjacent building and relative distances between ground buildings and underground structures. Some useful conclusions were obtained through analysis, which are beneficial to engineering designs.

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