Abstract
This study explored the seismic response of a house supporting base sides with a polymeric displacement control material and by magnetically levitating the foundation base. In this paper, we explore the possibility and efficacy of a seismic-isolated detached house as described above from both a shaking table experiment of model and three-dimensional finite element analysis. The seismic-isolated model showed stable response and its acceleration response was significantly reduced compared to the base-fixed model in the shaking table test. Three-dimensional finite element analysis was possible to simulate the experimental results. In the seismic response analysis of a full-scale detached house, the seismic-isolated model showed response reduction and its residual displacement was smaller than that of the sliding-base isolation model.
Highlights
The 1995 Hyogoken-Nanbu Earthquake caused extensive building damage
This study explored the seismic response of a house supporting base sides with a polymeric displacement control material and by magnetically levitating the foundation base
We explore the possibility and efficacy of a seismic-isolated detached house as described above from both a shaking table experiment of model and three-dimensional finite element analysis
Summary
Seismic isolation and response control buildings were rapidly developed in Japan as the main technological means for reducing the seismic response of buildings. The effectiveness of these seismic isolation and response control buildings in reducing damage has been demonstrated to a certain extent in the major earthquakes that have occurred since . The seismic response of a building can be significantly reduced if the foundation base is isolated from the ground and the transmission path of the ground motion is artificially excised. The building model is magnetically levitated using permanent magnets and the base sides are supported by soft, high damping artificial geomaterial to control horizontal displacement
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