Design and analysis of RC corbel based on SNI 2847:2019 and analysed using computer aided strut-and-tie model

Abstract

In this study, the corbel has been reviewed by considering its design and analysis based on Strut-and-Tie Model (STM). Many studies on corbels had been carried out in order to obtain an effective design approach. SNI 2847-2019 is one code that regulate to design and analyse corbel using STM. For initial stage, dimensions and steel reinforcements of corbel are designed using SNI 2847-2019 based on the empirical formulas. Afterward, design and analysis corbel were conducted using two different truss models. Aside from that, the Computer Aided Strut and Tie (CAST) software was applied on last analysis stage. Each analysis was required to generate the force ratio (FR), so it can be determined reliability of the used truss models. The design results based on the used models exhibited that the steel reinforcements of corbel are quite similar. In addition, the average force ratio for Model-1 and Model-2 are gained of 0.6204 and 0.6147, respectively. Meanwhile, the CAST analysis results also provided similar force ratio, namely 0.5805 and 0.5985 for each Model-1 and Model-2. Accordingly, STM and CAST can be used to design and analyse corbels.