Enhanced measurements of structural inter-story drift responses in shaking table tests

Ji, Xiaodong; Gao, Xiang; Zhuang, Yuncheng; Qu, Zhe

doi:10.1016/j.engstruct.2022.115508

Cited by 11 publications

(1 citation statement)

References 41 publications

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“…Te objective of seismic protection is to reduce the force demand and control the lateral deformation of a structure subjected to strong ground motions. Extensive achievements have been made in this feld, such as base isolation and energy dissipation technologies [1][2][3][4][5][6][7][8]. Due to their capacity to signifcantly reduce acceleration response, negativestifness vibration control techniques have been employed in civil engineering.…”

Section: Introductionmentioning

confidence: 99%

A Half-Cycle Negative-Stiffness Damping Model and Device Development

Sun

Peng

et al. 2023

Structural Control and Health Monitoring

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This paper proposes a novel damping model with negative stiffness known as the half-cycle negative-stiffness damping model. Analysis of a single degree of freedom (SDOF) system demonstrated that the half-cycle negative-stiffness damping model has negative stiffness and energy dissipation. The equivalent negative stiffness of the model was derived from the frequency response analysis of the system. An alternating transmission system and a one-way friction system were developed to assemble a half-cycle negative-stiffness damping device (HCNSDD), which can generate a half-cycle negative-stiffness damping model. A mechanical model was developed to represent the force-displacement relationship of the proposed HCNSDD. A HCNSDD specimen was manufactured and examined using experimental tests. The HCNSDD exhibits half-cycle negative-stiffness damping and stable mechanical properties, demonstrating the feasibility and effectiveness of the proposed HCNSDD. Finally, a finite element simulation approach for HCNSDD was presented, and the performance of seismic vibration control of HCNSDD was evaluated using a multidegree-of-freedom system.

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