초고성능 콘크리트 부재의 연성에 인장강도의 증진이 미치는 영향

Abstract

In this study, ductility of members with ultra-high performance concrete for the safety on large deformation of structure. For the analysis of members with ultra-high performance concrete, mathematical models for stress-strain relation was selected among previous researches on the compressive and tensile behavior of high strength concrete and fiber reinforced concrete. According to the investigation on ductility of members with ultra-high performance concrete, ductility was slightly decreased with increase oftensile strength of concrete under the same reinforcement ratio. Members with 2～3% of reinforcement ratio which usually be used in the field engineering have not significantly affected on safety but other design strength can be affected by the effect of tensile strength increase effect of high-performance concrete.