Study on vibration control of high-rise structure considering soil-structure interaction effect

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Mar.2026, Vol.49 No.3: 405-410

DOI: 10.3969/j.issn.1003-5060.2026.03.019

Authors

PAN Yichun ¹, WANG Quan ^1,2, REN Weinan ¹, GAN Jiachen ¹

(1. School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China; 2. Anhui Civil Engineering Research Center for Disaster Prevention and Mitigation, Hefei 230009, China)

Abstract and Keywords

Abstract: Aiming at the influence of soil-structure interaction(SSI) on vibration control of high-rise structures, the finite element models of rigid foundation system and SSI system were established by ANSYS based on Benchmark model of 20-story steel structure, and the semi-infinity of soil under SSI system was simulated by viscoelastic boundary. After ensuring that the intensity of seismic waves received by the main structure under rigid foundation system and SSI system was consistent, the dynamic responses of the superstructure of the two systems under the uncontrolled state and the control of two kinds of multiple tuned mass dampers(MTMD) were studied. The results show that due to the influence of soil, the maximum horizontal acceleration of the floor, the maximum inter-story displacement and the maximum shear force of the bottom column of the structure are reduced to a certain extent compared with those under rigid foundation. Under the rigid foundation system, the displacement and shear force of the structure are reduced to a certain extent under the control of MTMD1 designed on the basis of rigid foundation model, but the acceleration of some floors increases compared with that under uncontrolled state, and the control effect is unstable. Under SSI system, the acceleration, displacement and shear force of the structure are reduced to a certain extent under the control of MTMD2 designed based on the massless foundation model, with no increase observed. Compared with MTMD1, MTMD2 has more stable control effect.

Keywords: soil-structure interaction(SSI); viscoelastic boundary; multiple tuned mass dampers(MTMD); vi bration control

作者信息

潘已春 ¹，汪权 ^1,2，任伟男 ¹，甘嘉辰 ¹

(1. 合肥工业大学土木与水利工程学院，安徽合肥 230009；2. 土木工程防灾减灾安徽省工程技术研究中心，安徽合肥 230009)

摘要和关键词

摘要: 针对土-结构相互作用(soil-structure interaction, SSI)效应在高层结构振动控制中产生的影响,文章以20层钢结构Benchmark模型为基础结构,用ANSYS软件分别建立刚性地基体系和SSI体系的有限元模型,并采用黏弹性边界模拟SSI体系下土体的半无限性。在保证刚性地基体系和SSI体系下主结构接收的地震波强度一致后,研究2种体系在无控和2种多重调谐质量阻尼器(multiple tuned mass dampers, MTMD)控制下,上部结构的动力响应。结果表明:由于土体的影响,结构的楼层最大水平加速度、最大层间位移和底层中柱的最大剪力较刚性地基下都有一定幅度的减小;刚性地基体系下,结构在以刚性地基模型为基础设计的MTMD1控制下,位移和剪力都得到一定程度的减小,但部分楼层加速度较无控状态出现增大现象,控制效果不稳定;SSI体系下,结构在以无质量地基模型为基础设计的MTMD2控制下,加速度、位移和剪力都得到一定程度的减小,未出现增大现象;MTMD2对比MTMD1有着更稳定的控制效果。

关键词: 土-结构相互作用；黏弹性边界；多重调谐质量阻尼器；振动控制

Funding

国家自然科学基金资助项目（51878234）

合肥工业大学学报(自然科学版)

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