| Summary: | 碩士 === 國立中興大學 === 土木工程學系 === 89 === Abstract
The purpose of this study is to investigate the behavior of high performance concrete columns under concentric axial compression. A total of thirty column specimens were made in this study, fifteen were normal concrete columns and the rest were high performance concrete columns. The column cross sections were 300 mm by 300 mm square.The test parameters included the volumetric ratio and spacing of transverse reinforcement, yield strength of transerverse reinforcement, amount of longitudinal steel, and concrete compressive strength.The results show that nominal axial load strengths predicted by ACI 318-99 Code are applicable to high performance concrete columns. In addition, high performance concrete columns show better ductility than normal concrete columns. High performance concrete columns have better crack control over normal concrete columns. With the same value of transverse reinforcement, the columns can achieve the same ductility. An analytical stress-strain model is proposed for high performance concrete .
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