한국공간구조학회논문집 (Journal of Korean Association for Spatial Structures)

  • 제21권4호
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  • Pages.57-64
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  • 2021
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  • 1598-4095(pISSN)
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  • 2287-7401(eISSN)
한국공간구조학회 (Korean Association for Spatial Structures)
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제형 및 사인형 주름 강판의 초기 불완전 형상을 고려한 전단 좌굴 특성 비교

A Comparitive Study on the Shear Buckling Characteristics of Trapezoidal and Sinusoidal Corrugated Steel Plate Considering Initial Imperfection

  • 서건호 (한국기술교육대학교 미래융합공학전공) ;
  • 손수덕 (한국기술교육대학교 건축공학과) ;
  • 이승재 (한국기술교육대학교 건축공학과)
  • Seo, Geonho (Future Convergence Eng., Koreatech University) ;
  • Shon, Sudeok (Dept. of Architectural Eng., Koreatech University) ;
  • Lee, Seungjae (Dept. of Architectural Eng., Koreatech University)
  • 투고 : 2021.09.10
  • 심사 : 2021.09.30
  • 발행 : 2021.12.15
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초록

This paper conducted a comparative analysis of the shear buckling characteristics of trapezoidal and sinusoidal corrugated steel plates considering of their initial imperfection. Initial imperfection refers to the state where the shape of the corrugated plate is initially not perfect. As such, an initially imperfect shape was assumed using the eigen buckling mode. To calculate the buckling stress of corrugated steel plates, the linear buckling analysis used a boundary condition which was applied to the plate buckling analysis. For the comparison of trapezoidal and sinusoidal corrugation, the shape parameters were assumed using the case where the length and slope of each corrugation were the same, and the initial imperfection was considered to be from 0.1% to 5% based on the length of the steel plate. Here, for the buckling analysis, ANSYS, a commercial FEA program, was used. From the results of buckling analysis, the effect of overall initial imperfection showed that the larger the initial imperfection, the lower the buckling stress. However, in the very thin model, interaction or local buckling was dominant in the perfect shape, and in this case, the buckling stress did not decrease. Besides, the sinusoidal model showed higher buckling stress than the trapezoidal one, and the two corrugation shapes decreased in a similar way.

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과제정보

이 논문은 2019년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업임(NRF-2019R1A2C2010693). 또한 본 논문은 정부(교육부)의 재원으로 한국연구재단의 BK21 FOUR 사업의 지원을 받아 연구되었음.

참고문헌

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