Bicycle-Inspired Adaptive Self-Centering Device: Development of the Prototype, Experimental Results, and Analytical Predictions

Alexander, Jame; Sultana, Nabila; Ray, Tathagata; Tang, Yu-ping; Park, Charles

doi:10.1061/(asce)st.1943-541x.0001830

Cited by 7 publications

(2 citation statements)

References 24 publications

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“…The significance of this research stems from the fact that it reveals the advantages of low‐cost hysteretic dampers with full Bauschinger effect over state‐of‐the‐art active and passive control systems in reducing wind induced vibrations. In future, research should be carried out to investigate the efficiency of self‐centering passive dampers in reducing wind‐induced vibrations.…”

Section: Discussionmentioning

confidence: 99%

Frequency‐independent hysteretic dampers for mitigating wind‐induced vibrations of tall buildings

Ali

Alexander

Ray

2019

Struct Control Health Monit

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Summary Mitigation of wind‐induced vibrations in tall buildings has been taken seriously for decades for the safety of the load bearing members, nonstructural elements, and the building envelope, as well as for the comfort of the occupants. Among various technologies to mitigate these vibrations, tuned mass dampers with various improvisations, active or semiactive controls, and viscous dampers are proposed and used extensively. Although these technologies are dependent on the frequency of vibration, research on frequency‐independent hysteretic dampers for mitigating wind‐induced vibrations are quite limited. This paper evaluates the efficiency of hysteretic dampers in suppressing wind‐induced vibrations. Inelastic dynamic wind‐load analyses are performed with two regular three‐dimensional buildings and one 76‐story benchmark two‐dimensional building. It is found that hysteretic dampers perform exceedingly better than the state‐of‐the‐art control systems because they can absorb energy near the natural frequencies of the parent structure, as well as within the frequency bandwidth of windstorms.

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Section: Discussionmentioning

confidence: 99%

Frequency‐independent hysteretic dampers for mitigating wind‐induced vibrations of tall buildings

Ali

Alexander

Ray

2019

Struct Control Health Monit

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“…Some friction-based self-centering energy dissipaters 32,33 can withstand high ductility with nonzero hardening. These devices possess elastic springs to generate the nonzero hardening.…”

Section: Choice Of the Hysteretic Systemmentioning

confidence: 99%

Choice between series and parallel connections of hysteretic system and viscous damper for seismic protection of structures

Bougteb

Ray

2017

Earthq Engng Struct Dyn

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Summary Supplemental viscous damping devices are generally envisioned to be connected in parallel to the inelastic parent structure or hysteretic damping devices. This gives rise to higher base shear, and often greater ductility demand of the hysteretic system. The series connection of the viscous and hysteretic system (the inelastic structure or a damper) is an alternative approach. In this paper, comparisons between the series and parallel connections of the hysteretic system and viscous dampers are done through response spectra analyses of single degree of freedom structures. Ductility demand of the hysteretic system and the total base shear are chosen as the response quantities. For the series model, a semi‐implicit solution scheme for classical Maxwell model is modified to include the inelasticity of the time‐independent hysteretic spring. It is observed that the series connection of the 2 dampers gives lower base shear than does the parallel connection. For long‐period and low‐damping structures, the ductility demand of the hysteretic system in series connection is higher than that in parallel connection. Increasing the viscous damping in series connection reduces the ductility demand substantially, lower than that obtained in parallel connection. Practical methods for implementing the series and parallel connections, in line with roof isolation, are also suggested.

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On the dynamic response regimes of a viscoelastic isolation system integrated with a nonlinear energy sink

Huang

Yang

2019

Communications in Nonlinear Science and Numerical Simulation

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Bicycle-Inspired Adaptive Self-Centering Device: Development of the Prototype, Experimental Results, and Analytical Predictions

Cited by 7 publications

References 24 publications

Frequency‐independent hysteretic dampers for mitigating wind‐induced vibrations of tall buildings

Frequency‐independent hysteretic dampers for mitigating wind‐induced vibrations of tall buildings

Choice between series and parallel connections of hysteretic system and viscous damper for seismic protection of structures

On the dynamic response regimes of a viscoelastic isolation system integrated with a nonlinear energy sink

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