座屈拘束された方杖ダンパーによる柱梁高力ボルト接合構造の力学挙動

概要

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This paper presents mechanical performance, of beam-to-column connections constructed by mechanical joint with metallic-yielding dampers. Wide flange columns and beams are connected by means of double angle and high strength bolts, and buckling restrained braces, referred to as knee brace dampers, are implemented to improve lateral stiffness of the frame as well as to dissipate seismic input energy. Major findings obtained from loading tests and numerical analyses are as follows; 1) The proposed connection system exhibited stable hysteresis behavior when buckling of dampers and plastification of beams and columns are successfully prevented. 2) sufficient energy dissipation capacity and larger stiffness is obtained by knee brace dampers, 3) mechanical behavior of subassemblages is accurately predicted by numerical analysis of mechanical model, and strain behavior of hysteretic dampers can be well controlled.
社団法人日本建築学会の論文
2003-09-30