Abstract：The three-dimensional(3D) equivalent viscoelastic boundary element is introduced based on the theory of viscoelastic artificial boundary. The wave input method of wave scattering problems in free field is stated and used in 3D layered half space. The seismic waves can be transformed into equivalent forces adding on the artificial boundary nodes. The equivalent forces are calculated by finite element model with lumped mass and finite difference method. A 3D finite element model of soil-structure interaction system is built in the platform of ABAQUS software. Seismic responses of subway station structure are analyzed including factors that influence it. The open system is turned to a closed-system by adding local artificial boundary. The modal characteristics of the soil and station are obtained by modal analysis. The seismic responses of the subway station structure in horizontal and vertical directions are analyzed under SV and P waves. The corresponding regulations and distribution of internal force are studied to examine the most vulnerable positions. The results show that the SV waves inputted in transverse direction is the worst case to the subway station. The forces of the members suddenly changes in position at where the stiffness of the structure is changed greatly. The P waves have greatly effect on the axial force of the structure.
谷 音，钟 华，卓卫东. 地震作用下大型地铁车站结构三维动力反应分析[J]. 岩石力学与工程学报, 2013, 32(11): 2290-2299.
GU Yin，ZHONG Hua，ZHUO Weidong. ANALYSIS OF DYNAMIC INTERACTION BETWEEN SOIL AND LARGE SUBWAY STATION STRUCTURE UNDER SEISMIC EXCITATION
BASED ON 3D MODEL. , 2013, 32(11): 2290-2299.
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2013, Vol. 32 
