Study on the Influence of a Rubber-Modified Soil Isolation Layer on the Isolation Performance of Frame Structures with Different Foundation Forms

被引:0
|
作者
Chai, Shaoqiang [1 ]
Chen, Yong [1 ]
Cai, Dongbo [1 ]
Wang, Wei [1 ]
Chen, Qihao [1 ]
Liu, Jinhao [2 ]
机构
[1] Seventh Engn Co Ltd CFHEC, Zhengzhou 451450, Peoples R China
[2] Changan Univ, Sch Civil Engn, Xian 710064, Peoples R China
关键词
frame structure; rubber-modified soil; seismic performance; dynamic time history analysis; seismic isolation; SEISMIC ISOLATION SYSTEMS;
D O I
10.3390/buildings13102584
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
In order to investigate the seismic performance of a rubber-modified soil isolation layer, a three-dimensional finite element model was constructed using finite element analysis software, utilizing a two-story frame structure as the engineering background. Nonlinear dynamic time history analysis and comparisons were performed against the seismic performance of the structure. The evaluation was based on several parameters, including the contact area of the base, the thickness of the rubber-particle-modified soil isolation layer, ground motion records with varying amplitudes, and seismic frequency spectrum characteristics. The research findings indicate that the implementation of a rubber-modified soil isolation layer effectively mitigates the peak acceleration, horizontal displacement, and shear stress of the frame structure. This not only enhances the seismic performance of the structure but also enlarges the contact area of the base. Increasing the thickness of the rubber-modified soil isolation layer will effectively decrease the peak acceleration, horizontal displacement, and shear stress of the structure during seismic events. The effectiveness of the isolation provided by the rubber-modified soil layer improves as the intensity of the ground motion record increases.
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页数:22
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