プレストレストコンクリート梁柱ト型骨組の履歴復元力特性と接合部せん断性状に関する実験研究

概要

論文の詳細を見る
Three prestressed and one reinforced concrete beam-external column joint assemblages were constructed and tested. The prestressing forces in the beams were 0.06, 0.12, 0.18 and 0.0 f'_cA_g, respectively. For the reinforced concrete assemblage, the subsequent reduction in stiffness and strength was observed due to damage concentrating in the joint core and bond deterioration of non-prestressed reinforcement, while the assemblage with a prestressing force of 0.06 f'_cA_g, was able to be loaded to beyond a beam rotation angle of 1/15 without reduction in stiffness and strength. The cover concrete of the beams in the test units with larger prestress spalled in the early stage of loading and the buckling of the beam longitudinal reinforcement resulted in reduction of strength and failure.
社団法人日本建築学会の論文
1991-11-30