Structural Engineering and Mechanics

  • 제61권6호
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  • Pages.737-746
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  • 2017
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Fatigue performance of deepwater steel catenary riser considering nonlinear soil

  • Kim, Y.T. (Environmental and Plant Engineering Research Team, Daewoo Institute of Construction Technology) ;
  • Kim, D.K. (Ocean and Ship Technology, Deepwater Technology Mission Oriented Research, Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS) ;
  • Choi, H.S. (Graduate School of Engineering Mastership, Pohang University of Science and Technology) ;
  • Yu, S.Y. (Ocean and Ship Technology, Deepwater Technology Mission Oriented Research, Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS) ;
  • Park, K.S. (Steel Structure Research Group, POSCO Global R&D Center)
  • 투고 : 2016.06.13
  • 심사 : 2016.11.15
  • 발행 : 2017.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

The touch down zone (TDZ) and top connection point of the vessel are most critical part of fatigue damage in the steel catenary riser (SCR). In general, the linear soil model has been used to evaluate fatigue performance of SCRs because it gives conservative results in the TDZ. However, the conservative linear soil model shows the limitation to accommodate real behavior in the TDZ as water depth is increased. Therefore, the riser behavior on soft clay seabed is investigated using a nonlinear soil model through time domain approach in this study. The numerical analysis considering various important parameters of the nonlinear soil model such as shear strength at mudline, shear strength gradient and suction resistance force is conducted to check the adoptability and applicability of nonlinear soil model for SCR design.

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과제정보

연구 과제 주관 기관 : Ministry of Trade, Industry & Energy (MI)

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피인용 문헌

  1. Experimental investigations on seismic response of riser in touchdown zone 2018, https://doi.org/10.1016/j.ijnaoe.2017.08.005
  2. Development of ANN Model for the Prediction of VIV Fatigue Damage of Top-tensioned Riser vol.203, pp.2261-236X, 2018, https://doi.org/10.1051/matecconf/201820301013
  3. Subsea Equipment Decommissioning Using Fiber Rope vol.203, pp.2261-236X, 2018, https://doi.org/10.1051/matecconf/201820301014
  4. Advanced procedure for estimation of pipeline embedment on soft clay seabed vol.62, pp.4, 2017, https://doi.org/10.12989/sem.2017.62.4.381
  5. A parametric study on fatigue of a top-tensioned riser subjected to vortex-induced vibrations vol.6, pp.4, 2019, https://doi.org/10.12989/smm.2019.6.4.365
  6. Free vibration analysis of carbon nanotube RC nanobeams with variational approaches vol.11, pp.2, 2021, https://doi.org/10.12989/anr.2021.11.2.157