Combined Effect of Bearing Stiffness of the Base Isolator and Damping Characteristics of the Viscous Damper on the Nonlinear Response of Buildings

Deringöl, Ahmet Hilmi; Güneyisi, Esra Mete; Hansu, Osman

doi:10.1007/s13296-022-00656-5

Cited by 4 publications

(1 citation statement)

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“…Previous research has predominantly focused on the combination of fluid viscous dampers with laminated rubber bearings or lead-rubber bearings in order to enhance the performance of base-isolated structures [35][36][37][38][39]. However, it is important to acknowledge that these combinations have limitations, specifically in terms of their limited vertical load capacity.…”

Section: Dampers Advantages Disadvantagesmentioning

confidence: 99%

Enhancing the Seismic Response of Residential RC Buildings with an Innovative Base Isolation Technique

et al. 2023

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The prediction of the magnitude and impact of forthcoming earthquakes remains an elusive challenge in the field of science. Consequently, extensive research efforts have been directed toward the development of earthquake-resistant design strategies aimed at mitigating building vibrations. This study focuses on the efficacy of fluid viscous dampers (FVDs) in augmenting the seismic response of a low-rise residential reinforced-concrete building, which is base-isolated, using high–damping rubber bearings (HDRBs). The structural analysis employs a non-linear approach, employing ETABS v16 software for building modeling and conducting non-linear dynamic analysis using artificial accelerograms specific to Algeria. Three distinct connection configurations to the building’s base are investigated: (1) a fixed-base structure; (2) a structure isolated by HDRBs; and (3) a structure isolated utilizing a novel parallel arrangement of HDRBs in conjunction with FVDs. Comparative evaluation of these configurations reveals noteworthy findings; the results demonstrate that the base isolation system, comprising HDRBs and FVDs, significantly diminishes the base shear force by over 80% and reduces acceleration by 54% while concurrently increasing displacement by 47%. These findings underscore the effectiveness of incorporating FVDs in conjunction with HDRBs as a means to enhance the seismic response of reinforced concrete buildings. This study showcases the potential of such structural analyses to contribute to the development of earthquake-resistant design approaches, providing valuable insights for architects and engineers involved in constructing resilient buildings in seismically active regions.

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Section: Dampers Advantages Disadvantagesmentioning

confidence: 99%