高強度材料を用いたRC柱梁接合部の補修に関する実験的研究

概要

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The effectiveness of repair made to damaged interior reinforced concrete beam-column joints using high-strength concrete and high-strength steel was studied experimentally. The original tests were continued up to a final story drift angle of 70/1000 radian. The damaged original specimens were repaired by means of the low viscous epoxy resin injection into cracks and replacement of cover concrete or crushed concrete using non-shrinking high-strength mortar. The repaired specimens were tested in the same way as for the original loading. The original specimens failed in shear compression of the joints or bond splitting of the joints after flexural yielding of beams respectively. The original specimens and the repaired specimens were compared, with regards to the failure mode, the stiffness, the strength and the energy dissipation ability.
一般社団法人日本建築学会の論文
1996-03-20