Negative stiffness and inerter-based dampers: Novel seismic response control approach for base isolated liquid storage tanks

Islam, Naqeeb Ul; Jangid, R.S.

doi:10.1016/j.istruc.2024.105860

Cited by 3 publications

(1 citation statement)

References 63 publications

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“…Negative stiffness elements can reduce the apparent stiffness of the whole system, thus reducing the base shear and peak acceleration of the structure 54 , 55 . The combination of negative stiffness element and inerter enhances the energy dissipation capacity of the damper effectively, and different combinations of the two elements show different seismic isolation performance 56 , 57 . Suitable values of inertance to mass ratio and stiffness ratio can reduce the mean square response 58 .…”

Section: Introductionmentioning

confidence: 99%

Parameter optimization of vibration control system for adjacent building structures based on negative stiffness inerter damper

Kang,

Tang,

Wei

et al. 2024

Sci Rep

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Building structures are subjected to strong earthquakes, which result in lateral collisions between them. Such collisions often cause severe structural damage and exacerbate the seismic hazard risk of building structures during earthquake events. This paper discusses the application of vibration control devices based on negative stiffness inerter damper in single-story adjacent building structures. The dynamic equations of the vibration control system containing different types of negative stiffness inerter damper under seismic excitation are established as a unified model. The H2 norm theory and Monte Carlo pattern search method are used to optimize the design parameters to improve the vibration control performance of the system, and the dynamic characteristics of the system are investigated. The results demonstrate that attaching negative stiffness inerter damper to adjacent building structures can effectively improve the overall seismic capacity reserve of the building and reduce the risk of collision of adjacent building structures; improve the robustness and stability of the system, and better reduce the displacement response of the building structure under seismic excitation. In addition, the potential of NSID-based vibration control devices to convert seismic energy into usable electricity has been investigated.

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