横方向プレストレスを導入した鉄筋コンクリート柱の能動的拘束効果とせん断ひび割れ性状

概要

論文の詳細を見る
Experiments and 3-D FEM analyses were performed on reinforced concrete columns laterally prestressed by the shear reinforcements to study the influence of the active confinement upon shear strength and crack behaviors. The relation between the width of shear crack and the strain of reinforcement has been proven by measuring every crack over reinforcements and gluing three strain gauges on reinforcements. With increasing the lateral pressure, shear crack strength and ultimate shear strength have increased proportionally, shear crack patterns have changed appreciably, and the widths of cracks have decreased drastically. The FEM analyses using smeared crack model cannot evaluate a localized crack accurately but can provide valuable information about the total damage in the overall depth of a specimen.
社団法人日本建築学会の論文
2005-01-30