This paper presents the design, analysis, and experimental evaluations of precast reinforced UHPC (ultra high-performance concrete) beams with a new design concept of non-uniform flexural members. With outstanding mechanical properties of UHPC which can develop the compressive strength up to 200MPa, the tensile strengths up to 8~20MPa and the tensile strain up to 1~5%, a non-uniform structural shape of UHPC flexural beams were optimally designed using three-dimensional finite element analysis. The experiments were carried out and compared with the design strength in order to verify the performance of them. Proposed non-uniform UHPC beams were evaluated by a series of three-point beam loading test as well as estimated by design bending and shear strength of members. The newly designed UHPC beams show excellent performances not only in transverse load capacities but also in deformation capacities.

Abstract
 1. 서론
 2. 초고강도 콘크리트
  2.1 초고강도 콘크리트의 재료 특성 및 모델
  2.2 초고강도 콘크리트 구조 부재의 설계 휨 강도 추정식
  2.3 초고강도 콘크리트 구조 부재의 설계 전단 강도 추정식
 3. 초고강도 콘크리트 적용 비정형 구조 부재의 설계(안)
  3.1 비정형 단면 형상의 구조적 디자인
  3.2 비정형 솔리드 구조 부재의 디자인
 4. 초고강도 콘크리트 적용 프리캐스트 비정형 구조 부재의 성능 평가
  4.1 초고강도 콘크리트 적용 프리캐스트 비정형 구조 부재 실험 계획
  4.2 초고강도 콘크리트 적용 프리캐스트 비정형 구조 부재의 설계 강도 평가
  4.3 초고강도 콘크리트 적용 프리캐스트 비정형 구조 부재의 실험 결과 평가
 5. 결론
 References

• 김호연(조선대학교 대학원) | Kim, Hoyeon
• 조창근(조선대학교 건축학부) | Cho Chang-Geun 교신저자
• 강주원(영남대학교 건축학부) | Kang Joo-Won