Summary: | The study used an experimental test to analyse the performance of Reduced Beam Section (RBS) on castellated beam column with exterior connection structure model subjected to cyclic load gradually until collapse. The study used two specimens, which were models with and without RBS. The experiment was aimed to evaluate the performance of castellated beam structure with and without RBS affected by the position of castellated beam opening and RBS position on the beam-to-column connection. The results show that the maximum drift ratios of the specimens without RBS (WRBSC) and RBSC-1 were 3.2% and 3.15%, respectively. Meanwhile, the respective ductility performance was 2.45 and 2.56 while the respective stiffness was 0.09 and 0.08.
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