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| Study on isolation of structure with hysteretic friction tuned inerter damper |
| Received:May 25, 2023 Revised:July 20, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20230525009 |
| KeyWord:isolation tuned inerter damper friction element seismic response optimal design |
| Author | Institution |
| 台玉吉 |
湖南大学 风工程试验研究中心, 长沙 ;湖南大学 桥梁工程安全与韧性全国重点实验室, 长沙 |
| 周帅 |
湖南大学 风工程试验研究中心, 长沙 ;中国建筑第五工程局有限公司, 长沙 |
| 华旭刚 |
湖南大学 风工程试验研究中心, 长沙 ;湖南大学 桥梁工程安全与韧性全国重点实验室, 长沙 |
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| Abstract: |
| This paper studies the application of a new nonlinear damper,hysteretic friction tuned inerter damper (HFTID),in the seismic control of engineering structures.This HFTID is composed of a tuned inerter damper (TID) and hysteretic spring friction elements in parallel.Firstly,the transmissibility of force and displacement of the single-degree of freedom HFTID system is derived by harmonic balance method.Then the tuning parameters of the HFTID are optimized,and the approximate expression of the optimal parameters of the HFTID is obtained.The damping effects of HFTID and TID vibration control system are compared.The results show that the HFTID can further reduce the transmissibility of vibration control system compared with TID.Finally,taking a multi-storey isolated structure as an example,the isolation effect of the HFTID is compared with TID.The results show that the HFTID has greater advantages in reducing the peak value and root mean square value of seismic response than TID,which verifies the effectiveness and practicability of HFTID in reducing seismic response.HFTID has a potential application prospect for seismic isolation of buildings and bridges,vehicle suspension systems and other mechanical isolation problems. |
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