Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hysteretic behavior of high damping rubber bearings under multiaxial excitation
https://orcid.org/0000-0002-4396-4390
https://orcid.org/0000-0002-7823-2851
https://orcid.org/0000-0002-0193-6076
https://orcid.org/0000-0002-5295-7299
Abstract The high damping rubber bearing (HDRB) is an advanced seismic isolation component currently used in building structures with excellent energy dissipation capacity. To explore a deeper understanding of the HDRBs’ performance and effectiveness, a series of six-degree-of-freedom (6DOF) quasi-static tests were designed and conducted on three HDRB specimens with different dimensions. The main purposes of the tests are to reveal the hysteresis characteristics of the bearings in the rotational degrees of freedom, and to assess the influence of axial pressure and multiaxial coupling effect on the horizontal performance of the HDRBs. During the tests, the rotational, unidirectional, and bidirectional horizontal (coupled and uncoupled) hysteretic responses were obtained. Additionally, several important mechanical parameters are recommended and calculated to evaluate the coupling effect of axial load and rotation on HDRB performance. The results indicate that the axial pressure has a significant impact on the horizontal performance, while the effect of coupling the rotational degrees of freedom is not obvious. In addition, the tests also observed a significant level of stiffness degradation in the horizontal directions after multiple loading cycles.
Highlights The hysteretic behavior of the HDRBs in the rotational degrees of freedom is revealed. Axial pressure has significant influence on horizontal and rotational hysteretic performances of HDRBs. HDRBs show obvious stiffness degradation after cyclic loading tests.
Hysteretic behavior of high damping rubber bearings under multiaxial excitation
https://orcid.org/0000-0002-4396-4390
https://orcid.org/0000-0002-7823-2851
https://orcid.org/0000-0002-0193-6076
https://orcid.org/0000-0002-5295-7299
Abstract The high damping rubber bearing (HDRB) is an advanced seismic isolation component currently used in building structures with excellent energy dissipation capacity. To explore a deeper understanding of the HDRBs’ performance and effectiveness, a series of six-degree-of-freedom (6DOF) quasi-static tests were designed and conducted on three HDRB specimens with different dimensions. The main purposes of the tests are to reveal the hysteresis characteristics of the bearings in the rotational degrees of freedom, and to assess the influence of axial pressure and multiaxial coupling effect on the horizontal performance of the HDRBs. During the tests, the rotational, unidirectional, and bidirectional horizontal (coupled and uncoupled) hysteretic responses were obtained. Additionally, several important mechanical parameters are recommended and calculated to evaluate the coupling effect of axial load and rotation on HDRB performance. The results indicate that the axial pressure has a significant impact on the horizontal performance, while the effect of coupling the rotational degrees of freedom is not obvious. In addition, the tests also observed a significant level of stiffness degradation in the horizontal directions after multiple loading cycles.
Highlights The hysteretic behavior of the HDRBs in the rotational degrees of freedom is revealed. Axial pressure has significant influence on horizontal and rotational hysteretic performances of HDRBs. HDRBs show obvious stiffness degradation after cyclic loading tests.
Hysteretic behavior of high damping rubber bearings under multiaxial excitation
https://orcid.org/0000-0002-4396-4390
https://orcid.org/0000-0002-7823-2851
https://orcid.org/0000-0002-0193-6076
https://orcid.org/0000-0002-5295-7299
Abstract The high damping rubber bearing (HDRB) is an advanced seismic isolation component currently used in building structures with excellent energy dissipation capacity. To explore a deeper understanding of the HDRBs’ performance and effectiveness, a series of six-degree-of-freedom (6DOF) quasi-static tests were designed and conducted on three HDRB specimens with different dimensions. The main purposes of the tests are to reveal the hysteresis characteristics of the bearings in the rotational degrees of freedom, and to assess the influence of axial pressure and multiaxial coupling effect on the horizontal performance of the HDRBs. During the tests, the rotational, unidirectional, and bidirectional horizontal (coupled and uncoupled) hysteretic responses were obtained. Additionally, several important mechanical parameters are recommended and calculated to evaluate the coupling effect of axial load and rotation on HDRB performance. The results indicate that the axial pressure has a significant impact on the horizontal performance, while the effect of coupling the rotational degrees of freedom is not obvious. In addition, the tests also observed a significant level of stiffness degradation in the horizontal directions after multiple loading cycles.
Highlights The hysteretic behavior of the HDRBs in the rotational degrees of freedom is revealed. Axial pressure has significant influence on horizontal and rotational hysteretic performances of HDRBs. HDRBs show obvious stiffness degradation after cyclic loading tests.
Hysteretic behavior of high damping rubber bearings under multiaxial excitation
Li, Tao (Autor:in) / Yang, Yijian (Autor:in) / Xu, Jun (Autor:in) / Dai, Kaoshan (Autor:in) / Ge, Qingzi (Autor:in) / Wang, Jianze (Autor:in) / Chen, Peng (Autor:in) / Wang, Bin (Autor:in) / Huang, Zhenhua (Autor:in)
10.09.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| Taylor & Francis Verlag | 2022
| British Library Conference Proceedings | 2004