Structural Engineering and Mechanics

  • 제50권3호
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  • Pages.287-304
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  • 2014
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Wave load resistance of high strength concrete slender column subjected to eccentric compression

  • Jayakumar, M. (Department of Civil and Construction Engineering, Curtin University) ;
  • Rangan, B.V. (Faculty of Engineering and Computing, Curtin University)
  • 투고 : 2012.11.27
  • 심사 : 2014.03.05
  • 발행 : 2014.05.10
⟨ 이전 논문 다음 논문 ⟩

초록

A computer based iterative numerical procedure has been developed to analyse reinforced high strength concrete columns subjected to horizontal wave loads and eccentric vertical load by taking the material, geometrical and wave load non-linearity into account. The behaviour of the column has been assumed, to be represented by Moment-Thrust-Curvature relationship of the column cross-section. The formulated computer program predicts horizontal load versus deflection behaviour of a column up to failure. The developed numerical model has been applied to analyse several column specimens of various slenderness, structural properties and axial load ratios, tested by other researchers. The predicted values are having a better agreement with experimental results. A simplified user friendly hydrodynamic load model has been developed based on Morison equation supplemented with a wave slap term to predict the high frequency non-linear impulsive hydrodynamic loads arising from steep waves, known as ringing loads. A computer program has been formulated based on the model to obtain the wave loads and non-dimensional wave load coefficients for all discretised nodes, along the length of column from instantaneous free water surface to bottom of the column at mud level. The columns of same size and material properties but having different slenderness ratio are analysed by the developed numerical procedure for the simulated wave loads under various vertical thrust. This paper discusses the results obtained in detail and effect of slenderness in resisting wave loads under various vertical thrust.

키워드

참고문헌

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피인용 문헌

  1. Modification of endurance wave analysis based on New-wave theory vol.12, pp.3, 2017, https://doi.org/10.1080/17445302.2016.1149319