極低降伏点鋼を用いた制震パネルダンパーの静的履歴減衰性能に関する研究

概要

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Energy based seismic design approaches have been widely applied to mainly high-rise buildings in Japan. In the design approaches, dampers which are installed in the building play an important role to absorb energy during earthquakes. It is noticed that low-yield-point (LYP) steel has an appeal for a material of hysteretic damper. In this study, hysteretic performance of the damper of shear panel type using LYP steel under static loading is verified through cyclic loading tests. As hysteretic performance of the damper for energy based design, reliable ductility, buckling strength, maximum strength and hysteretic rule are discussed. In this paper, performance of typical square shear panels with frame flanges are firstly examined and secondly that of practically using rectangular panels reinforced by rib-plate are examined. In conclusion, it is verified that two modified width-thickness ratios are useful for estimating performance of the current damper.
社団法人日本建築学会の論文
1998-07-30