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종방향으로 보강된 팔각단면 쉘기둥의 축방향 압축강도 평가

Compressive Strength Evaluation of Longitudinally Stiffened Octangular-Section Modular Shell Towers

  • 최병호 (한밭대학교 건설환경공학과) ;
  • 김정원 (한밭대학교 일반대학원 토목공학과)
  • Choi, Byung Ho (Department of Civil Engineering, Hanbat National University) ;
  • Kim, Jung Won (Department of Civil Engineering, Graduate School, Hanbat National University)
  • 투고 : 2015.12.15
  • 심사 : 2016.01.05
  • 발행 : 2016.01.31

초록

본 논문은 팔각단면 모듈러 타워의 공칭압축강도의 산정에 관한 것이다. 종방향으로 보강된 팔각단면 타워모듈의 압축강도 성능을 3차원 유한요소해석으로 평가하고, 유로코드를 응용해서 산정한 공칭강도와의 비교 분석을 통해 적정 내하력 산정방식에 대해 검토하였다. 수치해석적으로 평가된 압축강도는 공칭압축강도에 비해 상당히 높게 나타나고 있으므로, 해당 범위의 팔각단면 타워모듈에 대한 적용성을 보여주나 다소 과도하게 보수적인 면에 대해서는 후속 연구를 통해 보완될 필요성이 있다.

This paper examined the uniaxial compressive strength of longitudinally-stiffened octangular modular section towers. Through a series of comparative studies, the 3-dimensional finite element analysis results were considerably larger than the nominal strength values based on Eurocode. Therefore, the design strength equations are simply applicable to the design of the octangular-section tower module, but a more rational method will be needed to properly predict the capacity.

키워드

참고문헌

  1. CEN, "Eurocode 3 Design of Steel Structures", EN 1993-1-1, European committee for standardization, 2006.
  2. CEN, "Eurocode 3 Design of Steel Structures" , EN 1993-1-3, European committee for standardization. 2006.
  3. CEN, "Eurocode 3 Design of Steel Structures", EN 1993-1-5,European committee for standardization. 2006.
  4. AASHTO LRFD Bridge Design Specifications American Association of State Highway and Transportation Officials, Inc., Washington, D.C. 2007.
  5. Korea Road and Transportation Association, Desige Specifications for Roadway Bridges, 2012.
  6. Stephen P. Timoshenko & James M. Gere, Theory of Elastic Stability, Mineola, N.Y Dover Publications, Second Edition, 2009.
  7. S. Y. Choi, P. G. Lee, K. I. Cho, B. H. Choi, "Analytical Study on Structural Ductility of HSB500 Thick-Walled Press-Braked U-section Steel Beams", Jouranl of KOSHAM, Vol. 11, pp. 11, 2013.
  8. B. H. Choi, S. M. Park, M. O. Hwang, "Finite Element Analyses on Ultimate Compressive Strength of Longitudinally Stiffened Polygonal Sections", Journal of KOSHAM, pp. 40, 2011.
  9. B. H. Choi, S. M. Park, M. O. Hwang, Local Buckling Strength of Modular Hexagon-section Shell Wind-Turbine Towers, Journal of KOSHAM, Vol. 13, No. 1, pp. 081-087, 2013. DOI: http://dx.doi.org/10.9798/KOSHAM.2013.13.1.081
  10. ABAQUS, "Analysis User's Manual", version 6.14, 2014.