Ultimate Strength Analysis of Reinforced Concrete Corbels Using Grid Softened Strut-Tie Model

격자 연화 스트럿-타이 모델 방법을 이용한 RC 코벨의 극한강도예측

Predicting the failure modes of reinforced concrete corbels is difficult because the reinforced concrete corbels show the shapes of sudden shear failures at even slight deflection. For this reason, an exact analysis method is demanded highly. In this study, the validity of the grid softened strut-tie model method suggested for concrete member analysis was examined through the ultimate strength evaluation of the reinforced concrete corbels tested to failure. The evaluated ultimate strengths by the grid softened strut-tie model method were compared with those by the ACI 318-02 and the softened strut-tie model method.