Perilaku Histeretik Subassemblage Balok-Kolom Interior Prategang Parsial Reactive Powder Concrete dalam Pemodelan Finite Element
Abstract. Research on concrete in some countries has produced a concrete type of Ultra High Performance Concrete (UHPC) which has the strength, ductility, modulus of elasticity, and high durability, namely Reactive Powder Concrete (RPC). Research on structural engineering using RPC material in various countries have shown better performance than structures made of Normal Concrete (NC) or High Performance Concrete (HPC) in resisting both monotonic and cyclic loads. Research showed that structures using RPC that resisted cyclic loading had an appropriate hysteretic performance. In this study, research was conducted using RPC material and structure modeling with non-linear finite element method (NL-FEM). The material test results were used as parts of the input of the interior partial prestressed beam-column subassemblage structures (S-RPC) modelled using the NL-FEM. As a comparison, there were models of interior partial prestressed beam-column subassemblage used NC materials (S-NC). To analyze the hysteretic behavior of the models, there were variations of Partial Prestressed Ratio (PPR) values of S-RPC and S-NC models. Analysis of modeling results showed superior performance and better hysteretic behavior of all S-RPC models compared with the S-NC models in terms of ductility, energy dissipation, stiffness, and strength. From the modeling results, there were optimum PPR values of the S-RPC models which ranged between 21.39% and 37.34%. Meanwhile, the optimum PPR value of S-NC model was 34.15%.
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