鉄筋コンクリート造片側そで壁付き柱の終局強度に関する実験的研究

摘要

本研究では，片側そで壁付き柱の形状，配筋詳細および加力方法が異なる4体の試験体の静的加力実験を行い，実験結果および設計式による計算値との比較等により、以下の結論を得た。1）いずれの試験体においても，正側（壁引張側）はそで壁の端部縦筋が降伏し曲げ降伏型となり，耐力低下は小さく安定していた。負側（柱引張側）においては．どの試験体でもそで壁の横補強筋が先に降伏し，せん断破壊型となった。%Four specimens were tested representing reinforced concrete column with a wing wall to investigate seismic performance of the member with an irregular section. The specimens were one-half scale columns combined with a wing wall only on one side in the loading direction. The section and reinforcement details were planned following the previous tests on columns with wing walls on both sides. The effects of asymmetric horizontal section, reinforcement details and varying axial force on seismic performance were investigated. The ultimate strengths of the members were identified with the observed failure modes. The measured flexural and shear strengths were compared with the calculated strengths based on the conventional design formula as well as new formula, which had been proposed by the authors with the results of the first test series.