Composites Research

The Korean Society for Composite Materials (한국복합재료학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Size/Scale Effects in the Failure of Specially Orthotropic Slab Bridges

특별직교이방성 슬래브 교량의 파괴시 치수효과에 관한 연구

  • 한봉구 (서울산업대학교 건설공학부 구조공학과) ;
  • 김덕현 (서울산업대학교 건설공학부 구조공학과)
  • Published : 2010.02.28
Download PDF
⟨ Previous Next ⟩

Abstract

Most of the bridge systems, including the girders, cross-beams, and concrete decks behave as specially orthotropic plates. In general, the analytical solution for such complex system is very difficult to obtain. In this paper presented, a design method of slab bridge of simple supported made by composite materials. For the design of bridge made by the composite materials, cross-section was used the form-core shape because of this shape is economical and profitable, and for output of the stress value used finite difference method. In this paper, the rate of tensile strength reduction due to increased size was considered. Strength-failure analysis procedure, using the reduced tensile strength, was presented. And also numerical study was made for these cases.

거더, 가로보와 콘크리트 상판 등을 포함한 대부분의 교량시스템은 특별직교이방성 판으로 거동한다. 일반적으로 이러한 경계조건을 갖는 단면 혹은 불규칙한 단면을 갖는 시스템은 해석적 해를 구하기가 복잡하다. 본 논문에서는 복합 재료로 만들어진 양변 단순지지된 슬래브교량의 설계적 방법을 제시하고자 한다. 복합재료로 이루어진 교량을 설계하기 위하여, 단면은 가장 경제적이면서 응력에 유리한 폼코어 형태를 채택하였고, 응력을 산출함에 있어서는 유한차분법 프로그램을 이용하였다. 본 논문에서는 치수가 증가됨에 따른 인장강도 감소율을 고려하였다. 파괴강도 해석은 본 논문에서 제시하고 있는 인장강도의 감소를 고려하여 제시하였다. 또한 이러한 경우에 대한 수치해석을 수행하였다.

Keywords

References

  1. Kim, D. H., "Composite Structures for Civil and Architectural Engineering," E&FN SPON, Chapman & Hall, London, 1995.
  2. Kim, D. H., Han, B. K., "Simple Method of Vibration Analysis of Three Span Continuous Reinforced Concrete Bridge with Elastic Intermediate Supportm," Journal of Korean Society for Composite Materials, Vol. 17, No. 3, 2004, pp. 23-28.
  3. Han, B. K, Kim, D. H., "Analysis of Steel Bridges by Means of Specially Orthotropic Plate Theory," Journal of Korean Society of Steel Construction, Vol. 13, No.1, 2001, pp. 61-69.
  4. Kim, D. H., "A Simple Method of 'Exact' Analysis of some Composite Laminated Structures for Civil Construction," Seminar, University of Illinois at Urbana - Champaign, 1992.
  5. Kim, D. H., "Simple Method of Analysis for Preliminary Design of Certain Composite Laminated Primary for Civil Construction II," Journal of Material Technology, Elsevier, London, 1993.
  6. Tsai, S. S. W., "Composite Design," Think Composite, Dayton, OH, 1988.
  7. Kim, D. H., "Size/Scale Effects in the Failure of Brittle Materials and Composite Structures," Invited Lecture, International Union of Theoretical and Applied Mechanics Symposium, Torino, Italy, 1994.
  8. Kim, D. H., "The Importance of Size/Scale Effects in the Failure of Composite Structures," 4th Japan International SAMPE Symposium and Exhibition, Tokyo, 1995, pp. 25-28.
  9. Han, B. K, Kim, D. H, Lee Y. H, "Size/Scale Effects in the Failure of Simply Supported Sandwich Bridge," Proc. of Korean Society of Civil Engineers, Vol. 1, 2003, pp. 333-338.

Cited by

  1. The Effects of Different Cross Section on Natural Frequency of the Advanced Composite Materials Road Structures vol.15, pp.3, 2013, https://doi.org/10.7855/IJHE.2013.15.3.023
  2. The Influence of the Aspect Ratio on the Composite Material Bridge Deck Structures vol.27, pp.1, 2014, https://doi.org/10.7234/composres.2014.27.1.001
  3. A Study of the Advanced Composite Material Slab for Light Weight of Tall Building vol.27, pp.1, 2014, https://doi.org/10.7234/composres.2014.27.1.007
  4. The Advanced Composite Sandwich Panels for Light Weight of Road Structures vol.16, pp.3, 2014, https://doi.org/10.7855/IJHE.2014.16.3.001
  5. The Effects of the Aspect Ratio on Natural Frequency of the Advanced Composite Materials Road Structures vol.15, pp.3, 2013, https://doi.org/10.7855/IJHE.2013.15.3.017
  6. A Study on the Natural Frequency of a Laminated Cantilever Beam vol.9, pp.1, 2018, https://doi.org/10.11004/kosacs.2018.9.1.001