스트럿-타이 기법에 의한 초고강도 콘크리트 비정형 트러스 구조 디자인 = Structural Design of Ultra High-Strength Concrete Non-Uniform Truss Using Strut-Tie Approach

다국어 초록 (Multilingual Abstract)

In current research, it was attempted a preliminary design and evaluation of non-uniform ultra high-strength concrete (UHSC) truss members. UHSC used here has the compressive strength of 180 MPa, the tensile strength of 8 to 20 MPa, and the tensile strain after cracks up to 2%. By the three-dimensional finite element stress analysis as well as strut-tie approach on concrete solid beams, the non-uniform truss shape of UHSC truss was designed with the architectural esthetic concept. In a series of examples, to compare with conventional concrete members, the proposed UHSC truss members have advantages in capabilities of the slender design with minimum weight with high performances under transverse loadings as well as the aesthetically non-uniform design for spatial structures.

참고문헌 (Reference)

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2 유성원, "강섬유로 보강된 초고성능 콘크리트 바닥판과 역T형 강거더 합성보의 휨거동 실험" 한국콘크리트학회 26 (26): 761-769, 2014

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4 John, H., "The Implementation of Full Depth UHPC Waffle Bridge Deck Panels" Federal Highway Administration 2013

5 MOLIT, "Strut-Tie Model" Ministry of Land, Infrastructure and Transport 2016

6 KCI, "Structures Design Recommendations for K-UHPC" Korea Concrete Institute 2012

7 Cho, C. G., "Experiments and failure analysis of SHCC and reinforced concrete composite slabs" 56 : 320-331, 2015

8 Schlaich, J., "Design and detailing of structural concrete using strutand-tie models" 69 (69): 113-125, 1991

9 ACI, "American Concrete Institute (2014)Building Code Requirements for Structural Concrete (ACI 318M-14) and Commentary (ACI 318RM-14)" 2014