観測記録に基づくSRC造10階建物の平面増築による振動特性変化

概要

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Vibration characteristics of a 10-story SRC building with pile foundation were examined by microtremor tests and earthquake response observation, focusing on the change before and after floor extension of the building to investigate the effect of the floor plan shape on the vibration characteristics. As the change of floor plan of the building from non-symmetric L-shape to symmetry, natural frequency, damping, spatial vibration modes and soil-structure interaction have changed. Rocking motion,torsion and coupled torsion component of lateral mode decreased after the extension. New mode only with symmetrical in-plane floor deformation appeared after the extension. Such experimentally shown complex characters of actual building will be important for structure design and simulation.
一般社団法人日本建築学会の論文
2002-03-20