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Shaking table test of a novel Three-dimensional seismic isolation system with inclined rubber bearings
https://orcid.org/0000-0002-4596-3113
https://orcid.org/0000-0002-1072-7129
Highlights A novel 3D isolator with inclined bearings was proposed and the nonlinear mechanical model was introduced. The 3D isolator was designed to reduce vertical as well as horizontal earthquake responses of structure. Shaking table tests were performed to verify the vertical isolation efficiency. Compared with conventional horizontal isolated structure, the 3D isolated structure has close horizontal responses and significant vertical mitigation effect. Under varies test cases the 3D isolators were in stable and safety performance state. The structural responses were influenced by the inclination angle while were merely affected by the imposed earthquake dimension.
Abstract This paper describes the results of shaking table tests performed on novel three-dimensional (3D) seismic isolation system, in which some lead rubber bearings (LRBs) were installed with inclination. The aim of this research is to verify the seismic performance of the proposed 3D isolator under earthquakes. The results of the static tests on the model 3D isolators are introduced in this paper as well as the response of two 3D isolated scaled models. Compared with the results of a horizontal isolated structure, the 3D isolated structures have close horizontal responses and significantly smaller vertical accelerations. This study clearly indicates that the proposed 3D isolator can effectively mitigate seismic risk of structures.
Shaking table test of a novel Three-dimensional seismic isolation system with inclined rubber bearings
https://orcid.org/0000-0002-4596-3113
https://orcid.org/0000-0002-1072-7129
Highlights A novel 3D isolator with inclined bearings was proposed and the nonlinear mechanical model was introduced. The 3D isolator was designed to reduce vertical as well as horizontal earthquake responses of structure. Shaking table tests were performed to verify the vertical isolation efficiency. Compared with conventional horizontal isolated structure, the 3D isolated structure has close horizontal responses and significant vertical mitigation effect. Under varies test cases the 3D isolators were in stable and safety performance state. The structural responses were influenced by the inclination angle while were merely affected by the imposed earthquake dimension.
Abstract This paper describes the results of shaking table tests performed on novel three-dimensional (3D) seismic isolation system, in which some lead rubber bearings (LRBs) were installed with inclination. The aim of this research is to verify the seismic performance of the proposed 3D isolator under earthquakes. The results of the static tests on the model 3D isolators are introduced in this paper as well as the response of two 3D isolated scaled models. Compared with the results of a horizontal isolated structure, the 3D isolated structures have close horizontal responses and significantly smaller vertical accelerations. This study clearly indicates that the proposed 3D isolator can effectively mitigate seismic risk of structures.
Shaking table test of a novel Three-dimensional seismic isolation system with inclined rubber bearings
https://orcid.org/0000-0002-4596-3113
https://orcid.org/0000-0002-1072-7129
Highlights A novel 3D isolator with inclined bearings was proposed and the nonlinear mechanical model was introduced. The 3D isolator was designed to reduce vertical as well as horizontal earthquake responses of structure. Shaking table tests were performed to verify the vertical isolation efficiency. Compared with conventional horizontal isolated structure, the 3D isolated structure has close horizontal responses and significant vertical mitigation effect. Under varies test cases the 3D isolators were in stable and safety performance state. The structural responses were influenced by the inclination angle while were merely affected by the imposed earthquake dimension.
Abstract This paper describes the results of shaking table tests performed on novel three-dimensional (3D) seismic isolation system, in which some lead rubber bearings (LRBs) were installed with inclination. The aim of this research is to verify the seismic performance of the proposed 3D isolator under earthquakes. The results of the static tests on the model 3D isolators are introduced in this paper as well as the response of two 3D isolated scaled models. Compared with the results of a horizontal isolated structure, the 3D isolated structures have close horizontal responses and significantly smaller vertical accelerations. This study clearly indicates that the proposed 3D isolator can effectively mitigate seismic risk of structures.
Shaking table test of a novel Three-dimensional seismic isolation system with inclined rubber bearings
Xu, Hao (author) / He, Wenfu (author) / Zhang, Lili (author) / Liu, Wenguang (author)
Engineering Structures ; 293
2023-07-14
Article (Journal)
Electronic Resource
English
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