Behaviour of Offshore Structure Based on Sand Seabed Subjected to Ice and Seismic Loads by On-Line Dynamic Response Test

An on-line dynamic response testing system has been developed in order to examine the response of the foundation soil to dynamic ice and earthquake loading. This system used interconnected on-line direct shear devices to carry out element tests in order to model the subsoil in the laboratory. The offshore structure and the foundation soil were modelled by a lumped mass model with eight degrees of freedom. Three degrees of freedom representing the area directly beneath the structure were modelled by laboratory soil elements using the online testing system. The ice load was applied to the top mass of the system and was simulated using the NKK-KARNA model which reduces a given velocity of impacting ice floe to a vibration signal. The seismic forces were simultaneously input for the base layer. As a result of applying these simultaneous forces some residual deformation and strength degradation was observed in the elements modelling the foundation soil.

• Record URL:
  http://www.poac.com/Papers/POAC01_V2.zip
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03766756
• Supplemental Notes:
  • Abstract reprinted with permission of the International Conference on Port and Ocean Engineering Under Arctic Conditions (POAC).
• Corporate Authors:

  Port and Ocean Engineering under Arctic Conditions (POAC)

  ,    
• Authors:
  • Hyodo, Masayuki
  • Yoshimoto, Norimasa
  • Hyde, Adrian FL
  • Yamane, Yuusuke
  • Fujii, Teruhisa
  • Kamesaki, Kazuhiko
  • Yamauchi, Yutaka
• Conference:
  • 16th International Conference on Port and Ocean Engineering under Arctic Conditions (POAC'01)
  • Location: Ottawa , Canada
  • Date: 2001-8-12 to 2001-8-17
• Publication Date: 2001

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 10p
• Monograph Title: POAC '01: Proceedings of the 16th International Conference on Port and Ocean Engineering under Arctic Conditions
• Serial:
  • Proceedings of the International Conference on Port and Ocean Engineering Under Arctic Conditions
  • Publisher: Port and Ocean Engineering under Arctic Conditions (POAC)
  • ISSN: 0376-6756
  • EISSN: 2077-7841
  • Serial URL: http://www.poac.com/PapersOnline.html

Subject/Index Terms

• TRT Terms: Earthquakes; Foundation soils; Ice floes; Loads; Mechanics; Ocean bottom; Offshore structures; Sand
• Subject Areas: Environment; Geotechnology; Marine Transportation; Terminals and Facilities; I15: Environment; I42: Soil Mechanics;

Filing Info

• Accession Number: 01588527
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 28 2016 9:01AM