Comparative analysis of seismic performance of existing building reinforced with viscous damper and seismic isolation bearing

Journal Information

J. Hefei Univ. Tech. (Nat. Sci.), Sept.2025, Vol.48 No.9: 1283-1288, 1296

DOI: 10.3969/j.issn.1003-5060.2025.09.019

Authors

WANG Hui $ ^{1} $, WANG Weiqiang $ ^{2} $, CHEN Daozheng $ ^{1,3} $

(1. School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China; 2. College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China; 3. Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China)

Abstract and Keywords

Abstract: Taking a six-layer frame structure as an example, this paper selects seismic waves that match the site conditions as the excitation, and establishes four finite element models in the ETABS structural analysis software: the original structure, the structure with viscous damper, the structure with seismic isolation bearing, and the structure integrating viscous damper and seismic isolation bearing. The type, number and arrangement of viscous damper and seismic isolation bearing are determined by trial calculation to achieve comparable maximum horizontal displacements under the action of frequent earthquakes. On this basis, the seismic response of the four models such as interlaminar displacement angle, interlaminar shear force and maximum acceleration under the action of earthquake is compared and analyzed, and the reinforcement effect of the two components is compared. The analysis results show that the control effect of base seismic isolation on the seismic response of frame structure is better than that of the viscous damper. The hybrid arrangement of the two can further improve the reinforcement performance.

Keywords: frame structure; viscous damper; seismic isolation bearing; time history analysis; hysteresis curve

作者信息

汪会 $ ^{1} $，王伟强 $ ^{2} $，陈道政 $ ^{1,3} $

（1. 合肥工业大学土木与水利工程学院，安徽合肥 230009；2. 国防科技大学电子对抗学院，安徽合肥 230037；3. 中国地震局工程力学研究所地震工程与工程振动重点实验室，黑龙江哈尔滨 150080）

摘要和关键词

摘要: 文章以某 6 层框架结构为例, 选取与场地条件相匹配的地震波作为激励, 在 ETABS 结构分析软件中建立原结构、布置黏滞阻尼器、布置隔震支座、混合布置黏滞阻尼器与隔震支座 4 个有限元模型。首先通过试算确定黏滞阻尼器和隔震支座的型号、数量与布置, 使 2 种结构在多遇地震作用下的最大水平位移相近。在此基础上对比分析 4 个模型在地震作用下的层间位移角、层间剪力、最大加速度等地震响应, 比较 2 种构件的加固效果。分析结果表明, 框架结构中基础隔震对结构地震反应的控制效果优于黏滞阻尼器, 而两者混合布置使用能进一步提高加固性能。

关键词: 框架结构；黏滞阻尼器；隔震支座；时程分析；滞回曲线

Funding

中国地震局工程力学研究所基本业务费专项资助项目（2020EEEEVL0417）

合肥工业大学学报(自然科学版)

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