高速載荷時の鋼構造接合部の力学的挙動に関する実験的研究 : その2 めっき処理を施した鋼素材,突合わせ溶接接合,中ボルトせん断型接合部の載荷実験

概要

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When tower-shaped steel structures are subjected to earthquakes, fluctuating velocity winds and other external disturbances, it can be assumed that mechanical properties of the material will vary from those of the material under static conditions due to the influence of loading speed (effect of strain rate velocity). In this respect, the studies in the post deal with (the raw material itself and it has not been clarified whether or not experimental results are also applicable to the dynamic behavior of connections which seem to be the most critical part in the steel structural frame. Such being the case, the purpose of this study is to clarify from an experiment of high speed monotonic tensile loading, the characteristics of the change in mechanical properties of the galvanized base metal, the galvanized butt-welded joints and the joints through shear strength of galvanized regular bolts, used in the ordinary towershaped steel structures. From these tests results, it has been concluded that, since the mechanical properties of these structural joints are remarkably affected by strain rate effect, the strength of the joints may not be directly estimated from the mechanical properties of the base metal itself.
社団法人日本建築学会の論文
1986-11-30