実大振動実験と強震観測に基づく低層鉄骨住宅の振動特性の振幅依存性に関する研究

概要

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In order to grasp the dynamic characteristics of steel framed low-rise housing, several vibration tests are carried out for different construction stages of several housings. The dynamic properties are evaluated as natural frequencies and damping ratios by using several identification methods based on observation records obtained from free-vibration and sweep excitation tests and seismic observation. First, the differences of results among excitation conditions are examined. Next, by comparing the results for different construction stage, the effect of non-structural members and amplitude dependency is studied. When the amplitude is increases, the natural frequencies decrease and damping ratios increase. These eigenproperties shows strong amplitude dependency when the non-structural members exist. From these results, it is shown that the non-structural members act an important role for the dynamic properties.
社団法人日本建築学会の論文
2003-12-30