한국공간구조학회논문집 (Journal of Korean Association for Spatial Structures)

  • 제18권2호
  • /
  • Pages.69-78
  • /
  • 2018
  • /
  • 1598-4095(pISSN)
  • /
  • 2287-7401(eISSN)
한국공간구조학회 (Korean Association for Spatial Structures)
권호 표지
DOI QR코드

DOI QR Code

스트럿-타이 기법에 의한 초고강도 콘크리트 비정형 트러스 구조 디자인

Structural Design of Ultra High-Strength Concrete Non-Uniform Truss Using Strut-Tie Approach

  • 투고 : 2018.03.25
  • 심사 : 2018.04.12
  • 발행 : 2018.06.15
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

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.

키워드

참고문헌

  1. Cho, C. G., Kappos, A. J., Moon, H. J., & Lim, H. J., "Experiments and failure analysis of SHCC and reinforced concrete composite slabs", Engineering Failure Analysis, Vol.56, pp.320-331, 2015 https://doi.org/10.1016/j.engfailanal.2015.01.009
  2. Cho, C. G., Han, B. C., Moon, H. J., Lim, H. J., & Lee, S. J., "Flexural Experiments and Strength Evaluation of Cast-In-Placed SHCC and Reinforced Concrete Composite Slabs", Journal of the Architectural Institute of Korea Structure & Construction, Vol.29, No.4, pp.19-26, 2013 https://doi.org/10.5659/JAIK_SC.2013.29.4.19
  3. Joh, C. B., Kim, B. S., Hwang, H. H., Choi, K. K., & Choi, S. H., "Punching Shear Strength of Deck Slabs Made of Ultra High Performance Concrete", Journal of the Korea Institute for Structural Maintenance and Inspection, Vol.15, No.4, pp.221-231, 2011 https://doi.org/10.11112/jksmi.2011.15.4.221
  4. Yoo, S. W., Ahn, Y. S., Cha, Y. D., & Joh, C. B., "Experiment of Flexural Behavior of Composite Beam with Steel Fiber Reinforced Ultra High Performance Concrete Deck and Inverted-T Steel Girder", Journal of the Korea Concrete Institute, Vol.26, No.6, pp.761-769, 2014 https://doi.org/10.4334/JKCI.2014.26.6.761
  5. John, H., & George, S. (2013). The Implementation of Full Depth UHPC Waffle Bridge Deck Panels(Report No. FHWA-HIF-13-031). USA: Federal Highway Administration.
  6. KCI, "Structures Design Recommendations for K-UHPC" Korea Concrete Institute, Korea, 2012
  7. ACI, "American Concrete Institute (2014) Building Code Requirements for Structural Concrete (ACI 318M-14) and Commentary (ACI 318RM-14)", Farmington Hills, Michigan, USA, 2014
  8. MOLIT, "Strut-Tie Model", Ministry of Land, Infrastructure and Transport, Korea, 2016
  9. Schlaich, J. & Schäfer, K., "Design and detailing of structural concrete using strutandtie models", Structural Engineer, Vol.69, No.6, pp.113-125, 1991