日本建築学会構造系論文集
Online ISSN : 1881-8153
Print ISSN : 1340-4202
ISSN-L : 1340-4202
下フランジにエネルギー吸収要素を設置した梁継手
吉敷 祥一上原 大輔山田 哲鈴木 一弁佐伯 英一郎和田 章
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2005 年 70 巻 597 号 p. 135-143

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A new type of seismic beam-end splice is proposed which uses a hysteretic damper as the splice element at the bottom flange of the beam. The design intent of this beam-end splice is to concentrate plastic deformation of the beam to a replaceable damper-and-splice element while limiting damage to the concrete slab. Non-degrading hysteretic characteristics of the damper-and-splice element is achieved by adequate buckling restraints. Based on axial loading tests of the damper-and-splice element and simple mechanics, design equation for the buckling restraints were established. Beam-column subassemblages implementing the proposed beam-end splice exhibited excellent cyclic loading behavior. Concerns regarding web crippling of the beam directly below the top flange splice are addressed.

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© 2005 日本建築学会
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