순수휨 구간내 스터럽이 보강된 고강도 콘크리트 보의 휨거동 연구

Flexural Behavior of High-Strength Concrete Beams with Confinement in Pure Bending Zone

The purpose of this study is to establish flexural behavior of high-strength concrete by means of both theoretical approach and experimental analysis of beams in which confinement stirrups have been introduced into pure bending zone. The experiment was carried out on full-scale high-strength reinforced concrete beams whose compressive strengths are 400 and 700kgf/cm$^2$, and confined with rectangular closed stirrups. The test results are reviewed in terms of flexural capacity and ductility.