Numerical study on seismic response of underground structure-soft soil-steel frame interaction

被引：0
作者：
Lu J. [1 ,2 ]
Shu H. [2 ]
Jiang H. [2 ]
机构：
[1] Key Lab of Concrete and Prestressed Concrete Structures of China Minister of Education, Southeast University, Nanjing
[2] School of Civil Engineering, Southeast University, Nanjing
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2023年 / 44卷
关键词：
finite element analysis; interaction; seismic response; soft soil; steel frame; underground structure;
D O I：
10.14006/j.jzjgxb.2023.S2.0038
中图分类号：
学科分类号：
摘要：
In order to study the seismic response of the increasing underground structures on the above-ground structure, based on the finite element analysis software ABAQUS, the constitutive model of the soil is realized and optimized in this paper. On this basis, the Benchmark steel frame and the subway station are considered to establish the underground structure-soft soil-steel frame interaction system. Through the dynamic time history analysis, the influence of soft soil and underground structure on the seismic response of steel frame under different stiffness of soil and steel frame and horizontal distance between underground structure and above-ground structure was studied. It is shown that soft soil could filter and amplify the seismic wave, and its influence on the acceleration of the soil surface is related to the characteristic of seismic wave and soil stiffness. The existence of the underground structure has the effect of scattering and reflecting the seismic wave, and amplifying the peak acceleration of the soil surface under the same ground motion excitation. The maximum inter-story drift ratio of the steel frame is related to the characteristic of seismic wave, the stiffness of soil and above-ground structure and the horizontal distance between steel frame and underground structure. © 2023 Science Press. All rights reserved.
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页码：375 / 384
页数：9
相关论文
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