Seismic Performance Analysis of Tuned Mass Rocking Wall (TMRW)-Frame Building Structures

Wang, Andong; Chen, Shanghong; Lin, Wen Wei; Ai, Qi

doi:10.3390/buildings11070293

Cited by 2 publications

(3 citation statements)

References 10 publications

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“…The outcomes demonstrated effective control over interstory drift and floor acceleration within this system. Wang et al 24 . and Lin et al 25 .…”

Section: Introductionmentioning

confidence: 99%

“…The outcomes demonstrated effective control over interstory drift and floor acceleration within this system. Wang et al 24 and Lin et al 25 analyzed the performance of a pinned rocking wall as a TMD connected to a frame-building structure. The results of these studies highlighted several advantages of the proposed system, including coordinated deformation and enhanced vibration energy dissipation.…”

mentioning

confidence: 99%

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Seismic response analysis of single‐degree‐of‐freedom structure coupled with tuned self‐centering wall

Wu,

Ogail,

2024

Earthq Engng Struct Dyn

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This paper investigates the possibility of using self‐centering walls (SCWs) as tuned mass dampers (TMDs) to control the seismic response of structures. The basic characteristics of this system are investigated using a two‐degree‐of‐freedom (2‐DOF) model, representing the main structure as a single‐degree‐of‐freedom (SDOF) oscillator interconnected with an SCW through viscous and elastic devices. The nonlinear equations of motion for the proposed coupled system are derived and then utilized to determine the displacement amplification response. The coupling parameters are optimized to minimize the dynamic response of the oscillator using a numerical method. A simulation study is conducted to investigate the response of the proposed system by considering six recorded earthquakes. Several parameters are studied, including the mass ratio, the influence of prestressing, and the slenderness angle of the wall. The displacement spectra are generated using the optimized parameters and compared to those of the uncoupled system and the traditional coupled system, which features a rigid connection between the structure and the wall. The results reveal that the proposed system effectively suppresses both maximum and root mean square responses of structures, outperforming the traditional coupled system in most cases. Improved performance for the proposed system can be achieved by increasing the wall's mass ratio and decreasing the slenderness angle. Moreover, prestressing has an adverse impact on the system's displacement response. Finally, the influence of wall flexibility is examined using a finite element model, revealing a minimal effect on the system's response.

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“…The outcomes demonstrated effective control over interstory drift and floor acceleration within this system. Wang et al 24 . and Lin et al 25 .…”

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Seismic response analysis of single‐degree‐of‐freedom structure coupled with tuned self‐centering wall

Wu,

Ogail,

2024

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

show abstract

“…When connected to the lowest part of the frame structure, this new control device can significantly reduce the drift of the top floor and lateral displacement of the bottom. The second author of this paper proposed a TMRW-frame structure system based on the energy dissipation principle of the traditional TMD [14]. The proposed TMRW can still hold most of the advantages of traditional rocking walls such as deformation coordination.…”

Section: Introductionmentioning

confidence: 99%

Structural Vibration Control with the Implementation of a Tuned Mass Rocking Wall System

et al. 2021

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A tuned mass rocking wall (TMRW)-frame structure system is proposed to improve the energy dissipation ability of the traditional rocking wall-frame system. Based on the energy dissipation principle of the traditional tuned mass damper (TMD), a TMRW is designed with proper mass and stiffness according to the dynamic characteristic of the host structure. Firstly, considering the presence of inherent structural damping, the dynamic amplification factor of the main mass was derived from the dynamic equations of the TMRW mechanism. A practical design table was then obtained after parameter study. Secondly, by taking a six-story frame structure as an example, the dynamic time-history analysis was conducted to study TMRW’s seismic performance. The inter-story drift ratios of the TMRW-frame, the traditional rocking wall-frame, and the frame structures were compared, and the seismic responses of the controlled and uncontrolled structures were also compared. The results demonstrate that the TMRW can effectively reduce the inter-story displacement of the host structure, and the lateral deformation mode of the host structure tends to be more uniform. However, compared with the traditional rocking wall-frame system, the proposed TMRW has less ability on coordinating deformation.

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Seismic Performance Analysis of Tuned Mass Rocking Wall (TMRW)-Frame Building Structures

Cited by 2 publications

References 10 publications

Seismic response analysis of single‐degree‐of‐freedom structure coupled with tuned self‐centering wall

Seismic response analysis of single‐degree‐of‐freedom structure coupled with tuned self‐centering wall

Structural Vibration Control with the Implementation of a Tuned Mass Rocking Wall System

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