Some Recent Advances on the Modeling of the Hysteretic Behavior of Rate-Independent Passive Energy Dissipation Devices

Vaiana, Nicolò; Napolitano, Ciro; Rosati, Luciano

doi:10.7712/120121.8648.18626

Cited by 6 publications

(3 citation statements)

References 15 publications

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“…It should be mentioned that Vaiana et al proposed a more generic hysteretic model for rate-independent mechanical systems [73]. They have applied their models for the modeling of rate-independent passive energy-dissipation devices [74]: the calibration of their model has been made by comparisons of the experimental tests of steel shear link tested by Nuzzo et al [75]. Therefore, such a model would be more suitable for the hysteresis model of damper panel than the model applied herein.…”

Section: Building Datamentioning

confidence: 99%

Peak and Cumulative Response of Reinforced Concrete Frames with Steel Damper Columns under Seismic Sequences

Fujii

2022

Buildings

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The steel damper column is an energy-dissipating member that is suitable for reinforced concrete (RC) buildings and those used for multistory housing in particular. However, the effectiveness of steel damper columns may be affected by the behavior of surrounding members, and this effect can be severe in the case of seismic sequences. This article investigates the nonlinear response of building models with an RC moment-resisting frame (MRF) with and without steel damper columns under seismic sequences. The applicability of the concept of the momentary energy input to the prediction of the peak response of RC MRFs with damper columns under seismic sequences is also investigated. The main findings of the study are summarized as follows. (1) The peak response of RC MRFs with damper columns subjected to sequential accelerations is similar to the peak response obtained considering only the mainshock, whereas the cumulative strain energy of RC MRFs accumulates more for sequential accelerations. (2) The steel damper column is effective in reducing the peak and cumulative responses of RC MRFs in the case of sequential seismic input. (3) The relation of the hysteretic dissipated energy during a half cycle of the structural response and the peak displacement of the first modal response can be properly evaluated using the simple model proposed in this study.

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Section: Building Datamentioning

confidence: 99%

Peak and Cumulative Response of Reinforced Concrete Frames with Steel Damper Columns under Seismic Sequences

Fujii

2022

Buildings

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“…Passive control devices are further classified into velocity-dependent dampers, displacement-dependent dampers, and hybrid dampers based on their relationship with velocity and displacement. They can also be categorized as rate-dependent or rate-independent dampers based on their dependence on velocity [5,6]. Viscous dampers [7][8][9] are the most commonly used velocitybased dissipative devices that utilize the damping characteristics of viscous materials to reduce structural vibration response.…”

Section: Introductionmentioning

confidence: 99%

Study on the Damping Efficiency of a Structure with Additional Viscous Dampers Based on the Shaking Table Test

Lan,

Zhang,

Sun

et al. 2024

Buildings

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This study specifically focuses on the damping efficiency of a damped structure with additional viscous dampers. A two-layer steel frame structure with eight sets of viscous dampers is used to conduct a series of seismic simulation shaking table tests, including a non-damped structure without dampers and two damped structures with dampers placed at 1/2 and 1/6 of the beam span, respectively. By conducting these tests, the energy dissipation, force, and displacement of the damper, as well as the parameters of the structure such as floor displacement and acceleration, are obtained. The main damping efficiency indicators of the damped structure are calculated, including the additional damping ratio, inter-story displacement utilization rate, as well as the reduction rate of the vertex displacement and the base shear relative to the non-damped structure. The study shows that the viscous dampers exhibit full hysteresis loops and a strong energy dissipation capacity in the structure. The seismic response of the vertex displacement and base shear in the damped structure is significantly smaller than that in the non-damped structure. Under different seismic levels, including frequent earthquakes, occasional earthquakes, and rare earthquakes, the damping effect of the dampers placed at 1/2 of the beam span is significantly better than that placed at 1/6 of the beam span. For example, the additional damping ratio for the X-direction artificial wave REN is 19% and 11%, 20% and 13%, and 13% and 11%, respectively. The patterns for inter-story displacement utilization ratio, reduction rate of the vertex displacement, and reduction rate of the base shear are similar. The research findings strongly indicate that the damped structure with additional viscous dampers exhibits excellent damping efficiency. In future damping design, designers need to fully consider the placement of viscous dampers within the beam span.

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“…The need to introduce these seismic protection techniques derives from the economic impossibility of creating structures resistant to any earthquake [7]. Hence, damper systems are designed and manufactured to protect structural integrities, control structural damages, and to prevent injuries to the residents by absorbing seismic energy and reducing deformations in the structure [10]. Specifically, seismic dampers permit the structure to resist severe input energy and reduce harmful deflections, forces and accelerations to structures and occupants.…”

Section: Introductionmentioning

confidence: 99%

Classification and Phenomenological Modeling of Hysteresis Phenomena in Energy Dissipation Devices

Napolitano,

Vaiana,

Rosati

2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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We present some preliminary results on the classification of rate-independent hysteretic loops exhibed by dampers. Furthermore, modellind of their hysteretic behavior is obtained by means of a recently formulated phenomenological model that allows for a closed-form evaluation of the nonlinear force-displacement, or their generalized counterparts, relationship and of the associated dissipated energy.After a brief presentation of the essential feartures of the model, the proposed approach is applied to reproduce the experimenatl behaviour of two dissipation devices. 1996COMPDYN 2023 9 th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering M. Papadrakakis, M. Fragiadakis (eds.

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Some Recent Advances on the Modeling of the Hysteretic Behavior of Rate-Independent Passive Energy Dissipation Devices

Cited by 6 publications

References 15 publications

Peak and Cumulative Response of Reinforced Concrete Frames with Steel Damper Columns under Seismic Sequences

Peak and Cumulative Response of Reinforced Concrete Frames with Steel Damper Columns under Seismic Sequences

Study on the Damping Efficiency of a Structure with Additional Viscous Dampers Based on the Shaking Table Test

Classification and Phenomenological Modeling of Hysteresis Phenomena in Energy Dissipation Devices

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