• Title/Summary/Keyword: 더블 웨브앵글

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Hysteresis Behavior of Semirigid CFT Column-to-Beam Connections with a Double Web-Angle (더블 웨브앵글 반강접 CFT 기둥-보 접합부의 이력거동)

  • Lee, Sung Ju;Kim, Joo Woo
    • Journal of Korean Society of Steel Construction
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    • v.25 no.1
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    • pp.15-24
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    • 2013
  • This paper presents the results from a systematic finite element study on the bending moment resisting capacity of double web-angle connection for a CFT(concrete filled tube) composite frame subjected to cyclic loading. The three-dimensional nonlinear finite element models are constructed to investigate the rotational stiffness, bending moment capacity, and failure modes of the partially restrained composite CFT connections. A wide scope of additional structural behaviors explain the different influences of the double web-angle connections parameters, such as the different thickness of connection angles and the gage distances of high strength steel connection bar. The moment-rotation angle relationships obtained statically from the finite element analysis are compared with those from Richard's theoretical equation.

Nonlinear Analysis of Superstructures on Floating Structures (플로팅 구조물의 상부구조에 대한 비선형해석)

  • Song, Hwa-Cheol;Park, Soo-Yong;Jung, Keun-Hoo;Kim, Se-Cheol;Lee, Eun-Suk
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2010.04a
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    • pp.118-121
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    • 2010
  • 초대형 플로팅 구조물의 상부구조는 육상 구조물과는 달리 파랑하중의 영향을 받기 때문에 하부부체의 변형에 의해서 상부구조물에는 부가 모멘트가 크게 발생한다. 이와 같은 부가모멘트의 저감을 위하여 보-기둥 접합부에 반강접의 도입에 관한 연구와 반강접의 비선형 거동을 고려한 상부구조물의 연구는 초기단계이다. 본 연구에서는 초대형 플로팅 구조물의 상부구조물에 정적하중과 진폭의 크기가 다른 파랑하중이 동시에 작용할 경우 강접 골조와 부분적으로 반강접 접합부가 사용된 상부구조체에 대한 1, 2차 소성해석을 수행하였다. 접합부는 웨브에 더블 앵글을 가진 상하 앵글(TSD)접합을 적용하였으며 상부 구조물에 파랑하중이 작용할 경우 소성거동에 따른 응답특성에 대하여 분석하였다.

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Second Order Elastic Analysis of Superstructures on Very Large Floating Structure with Semi-Rigid Connections (반강접 접합부를 적용한 초대형 부유식 구조물 상부구조체의 2차 탄성해석)

  • Song, Hwa-Cheol;Lee, Eun-Suk
    • Journal of Navigation and Port Research
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    • v.27 no.1
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    • pp.63-70
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    • 2003
  • If semi-rigid connections are used for superstructures of very large floating structures (VLFS), the number of rigid connections can be reduced and more economical construction will be possible. In this study, considering service load and wave load in VLFS, the applicability of mixed use of rigid and semi-rigid connections have been studied using three types of connections for a four-bay eight-story frame. Three types of connections are used; top and seat-angle connections with double web-angle(TSD), extended end plate connections, steel tubular column with square external-diaphragm connections. ABAQUS(Finite element analysis program) is used for conducting second order elastic analysis.