繰り返しせん断力を受けるプレートガーダーの変形能に関する研究

概要

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This paper presents an experimental investigation on the hysteretic behavior of plate girder panels under shear. Six specimens with two square panels of 800 mm side are made of low-yield steel LY 100 (nominal 0.2% offset yield stress is 120 MPa) or mild steel SM 400 (nominal yield stress 235 MPa) in webs. All the flanges are made of SM400. Hysteretic curves in shear for SM and LY series were compared for three different web slenderness ratios of 114, 160 and 200. The shear strength was almost uniform up to the large shear displacement, (10-27) times the elastic limit value. Energy dissipation increases in proportion to the shear displacement. Energy dissipation by the low-yield steel is larger than the energy dissipation by the mild steel, and the thicker web is more effective from the energy dissipated point of view.
福山大学の論文