梁断面寸法と接合詳細が変形能力に及ぼす影響: 塑性歪履歴を受ける鋼構造柱梁溶接接合部の変形能力　その4

摘要

梁断面寸法が変形能力に与える影響を分析するため，梁せいが800mmのH形断面の梁材を用いた通しダイアフラム形式柱梁接合部を対象とする新たな実験を行い，文献の梁せいが500mmの接合部の実験結果と比較し以下の知見を得た.%This paper presents results of full-scale cyclic loading tests of moment connection under constant deformation amplitude conducted to evaluate deformation capacity. The effects of beam section size and of weld access hole are investigated by four type specimens. The relationships between ductility amplitude of beam rotation, cumulative plastic deformation and crack propagation at weld joint are quantitatively obtained from test result. The effects of beam section size and connection detail on crack initiation charactaristic are investigated from stress and strain by FEM analysis.