高密度観測・強制加振実験に基づく地盤一建物連成系の立体振動性状及び履歴特性評価

概要

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A real building has complicated dynamic properties such as the amplitude dependency of dynamic characteristics, three-dimensional response including rotational and torsional motions and soil-structure interaction. In order to clarify them, multipoint observation for microtremor, earthquake and forced vibration are conducted in a PCaPC seven-story building and surrounding soil any seismic records have been observed at this building for several years. We also measured microtremor of the building and the ground, and analyzed basic dynamic properties. Then we excited the building by using the shaking table set up on the 4th floor as a vibrator. From these tests, we proposed the evaluation method for hysteresis of soil-structure interaction system. And we evaluated the story stiffness from the inertia force and story drift relationship using the assumed weight of each floor.
一般社団法人日本建築学会の論文
2011-03-25