Study on Damping Performance of Hyperboloid Damper with SMA-Negative Stiffness

Chang, Huahui; Liu, Leifei; Li, Jing; Lu, Jianxiong; Cao, Sasa

doi:10.3390/buildings12081111

Cited by 4 publications

(2 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Negative-stiffness systems are usually more efficient than conventional seismic isolation systems due to their ability to significantly reduce the vibration amplitude of the structure, while eliminating the inertial seismic loads to which the structure is subjected [6]. By introducing a new shape memory alloy into the negative-stiffness shock absorber, the device was able to effectively reduce the internal force response and displacement response of a bridge structural system [7]. A negative-stiffness amplifying damper can effectively reduce the interstory displacement and decrease the acceleration response of the structure [8].…”

Section: Introductionmentioning

confidence: 99%

Optimal Tuned Inerter Dampers for Vibration Control Performance of Adjacent Building Structures

Kang

Tang

et al. 2023

Buildings

View full text Add to dashboard Cite

Under the effect of strong earthquakes, collisions or excessive inter-story displacements may occur between adjacent building structures to the extent that the building structure is damaged. The traditional seismic measures for these structures can no longer meet the needs in practical engineering. In this paper, we propose the application of parallel and serial TID-based control systems in adjacent buildings as an example of a single-story adjacent building, and use it to form a new adjacent building seismic reduction structure. In this paper, the dynamic characteristics and design parameter optimization of the vibration control system are investigated by means of the Monte Carlo pattern search method and H2 norm theory. The results show that the introduction of serial and parallel TID in adjacent building structures can effectively improve the seismic resistance of adjacent buildings. The problem of vibration amplification caused by resonance is obviously improved, which is especially evident in the adjacent building structure vibration control system based on parallel TID. The vibration control system of adjacent building structures based on parallel TID is more robust. When optimizing the right building, the damping requirement of the TID decreases for the vibration control system based on parallel TID as the adjacent building mass ratio increases, while the damping requirement of the TID increases for the vibration control system based on serial TID. In both vibration control systems, the difference in the optimal inertial mass ratio is small. In practice, a moderate increase in the difference between adjacent building masses can have a positive effect on the vibration control performance of the systems. The main contribution of this paper is to fill the research gap in parallel and serial TID applications for adjacent building vibration reduction.

show abstract

Section: Introductionmentioning

confidence: 99%

Optimal Tuned Inerter Dampers for Vibration Control Performance of Adjacent Building Structures

Kang

Tang

et al. 2023

Buildings

View full text Add to dashboard Cite

show abstract

“…Earthquake damage is a typical form of geological disasters, which brings major challenges to the safe operation of bridges [1][2]. For example, in the Northridge earthquake in the United States, the Hanshin earthquake in Japan and the Wenchuan earthquake in China, bridges have been damaged to varying degrees.…”

Section: Introductionmentioning

confidence: 99%

Research on seismic performance of new bridge pier seismic reduction isolation system based on shaking table test

Wu¹

2022

J. vibroeng.

View full text Add to dashboard Cite

In view of the current poor seismic performance of bridges, this paper started with the vibration isolation and reduction mechanism of the bearing, and deduced the coordination relationship between the stress and the deformation of the bearing under the vibration isolation and vibration reduction working conditions. Combined with the shaking table test, the defect that the traditional rubber bearing has poor seismic isolation effect was analyzed. Based on this, a base-bearing double reduction system was proposed and its vibration reduction and isolation effect was compared with the traditional bearing. The shaking table test results showed that, compared with the traditional bearing, the proposed vibration reduction system had better energy dissipation effect and could weaken the apparent cracking damage of the pier under the action of earthquake. Under the 125 m/s2-750 m/s2 peak acceleration excitation of the EI-Centro wave, the proposed vibration reduction system could greatly reduce the displacement variation of the upper main beam by 20 %-47 %. Moreover, the results of dynamic amplification factor measured at the corresponding height of the two types of piers also verified that the proposed base-bearing double vibration reduction system had greater competitiveness when the peak acceleration of seismic waves was less than 500 m/s2.

show abstract

A review and comparative study on the performance of self-centering damping devices based on SMA

Qian,

Luo,

Shi

et al. 2025

Structures

View full text Add to dashboard Cite

Study on Damping Performance of Hyperboloid Damper with SMA-Negative Stiffness

Cited by 4 publications

References 38 publications

Optimal Tuned Inerter Dampers for Vibration Control Performance of Adjacent Building Structures

Optimal Tuned Inerter Dampers for Vibration Control Performance of Adjacent Building Structures

Research on seismic performance of new bridge pier seismic reduction isolation system based on shaking table test

A review and comparative study on the performance of self-centering damping devices based on SMA

Contact Info

Product

Resources

About