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A platform for research: civil engineering, architecture and urbanism
Effect of Using High Damping Rubber Bearings for Seismic Isolation of the Buildings
https://orcid.org/http://orcid.org/0000-0002-2665-8674
https://orcid.org/http://orcid.org/0000-0002-4598-5582
In this study, the use of high damping rubber bearing (HDRB) with various design properties in mitigating the seismic effects for steel buildings was investigated. For this, a generalized demand on the analytical model of HDRB was introduced and eighteen different models of HDRB were examined comparatively. These models were created by considering three significant isolation parameters of HDRB such as isolation period T (2, 2.5, and 3 s), effective damping ratio β (0.05, 0.10, 0.15), and post-yield stiffness ratio λ (3 and 6). The benchmark low (3-storey), mid (6-storey), and high-rise (9-storey) steel buildings were equipped with different isolation systems of HDRB and then subjected to a set of earthquake ground motions through nonlinear time history analyses in order to evaluate the actual nonlinear behaviour of the bearings in the base-isolated steel buildings in service. The base-isolated frames were assessed by the variation of the selected structural response parameters such as isolator displacement, relative displacement, inter-storey drift ratio, absolute acceleration, base shear, hysteretic curve, and dissipated energy. The effectiveness of the isolation parameters on the nonlinear response of the steel buildings with HDRB under earthquakes was comparatively evaluated to generate alternatively innovative isolation system. It was shown that the seismic performance of the base-isolated structure was remarkably influenced by the isolation parameters. The most favourable base isolation model was obtained when the higher value of the isolation period and effective damping ratio combined with the low post-yield stiffness ratio.
Effect of Using High Damping Rubber Bearings for Seismic Isolation of the Buildings
https://orcid.org/http://orcid.org/0000-0002-2665-8674
https://orcid.org/http://orcid.org/0000-0002-4598-5582
In this study, the use of high damping rubber bearing (HDRB) with various design properties in mitigating the seismic effects for steel buildings was investigated. For this, a generalized demand on the analytical model of HDRB was introduced and eighteen different models of HDRB were examined comparatively. These models were created by considering three significant isolation parameters of HDRB such as isolation period T (2, 2.5, and 3 s), effective damping ratio β (0.05, 0.10, 0.15), and post-yield stiffness ratio λ (3 and 6). The benchmark low (3-storey), mid (6-storey), and high-rise (9-storey) steel buildings were equipped with different isolation systems of HDRB and then subjected to a set of earthquake ground motions through nonlinear time history analyses in order to evaluate the actual nonlinear behaviour of the bearings in the base-isolated steel buildings in service. The base-isolated frames were assessed by the variation of the selected structural response parameters such as isolator displacement, relative displacement, inter-storey drift ratio, absolute acceleration, base shear, hysteretic curve, and dissipated energy. The effectiveness of the isolation parameters on the nonlinear response of the steel buildings with HDRB under earthquakes was comparatively evaluated to generate alternatively innovative isolation system. It was shown that the seismic performance of the base-isolated structure was remarkably influenced by the isolation parameters. The most favourable base isolation model was obtained when the higher value of the isolation period and effective damping ratio combined with the low post-yield stiffness ratio.
Effect of Using High Damping Rubber Bearings for Seismic Isolation of the Buildings
https://orcid.org/http://orcid.org/0000-0002-2665-8674
https://orcid.org/http://orcid.org/0000-0002-4598-5582
In this study, the use of high damping rubber bearing (HDRB) with various design properties in mitigating the seismic effects for steel buildings was investigated. For this, a generalized demand on the analytical model of HDRB was introduced and eighteen different models of HDRB were examined comparatively. These models were created by considering three significant isolation parameters of HDRB such as isolation period T (2, 2.5, and 3 s), effective damping ratio β (0.05, 0.10, 0.15), and post-yield stiffness ratio λ (3 and 6). The benchmark low (3-storey), mid (6-storey), and high-rise (9-storey) steel buildings were equipped with different isolation systems of HDRB and then subjected to a set of earthquake ground motions through nonlinear time history analyses in order to evaluate the actual nonlinear behaviour of the bearings in the base-isolated steel buildings in service. The base-isolated frames were assessed by the variation of the selected structural response parameters such as isolator displacement, relative displacement, inter-storey drift ratio, absolute acceleration, base shear, hysteretic curve, and dissipated energy. The effectiveness of the isolation parameters on the nonlinear response of the steel buildings with HDRB under earthquakes was comparatively evaluated to generate alternatively innovative isolation system. It was shown that the seismic performance of the base-isolated structure was remarkably influenced by the isolation parameters. The most favourable base isolation model was obtained when the higher value of the isolation period and effective damping ratio combined with the low post-yield stiffness ratio.
Effect of Using High Damping Rubber Bearings for Seismic Isolation of the Buildings
Int J Steel Struct
Deringöl, Ahmet Hilmi (author) / Güneyisi, Esra Mete (author)
International Journal of Steel Structures ; 21 ; 1698-1722
2021-10-01
25 pages
Article (Journal)
Electronic Resource
English
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