On stability improvement of gravity type onshore and offshore structures

Research output: Contribution to conferencePaper

Abstract

A protective cushion layer sandwiched between a gravity type caisson and the surrounding soil can improve the seismic stability of the caisson. In this paper, an interaction model was developed for analyzing such structure under earthquake loading. Interfaces on either side of the cushion were modeled as elements of finite thickness having different stiffness and constitutive properties. Participation from each element of the interaction system was taken into the account by incorporating appropriate factors at the respective interfaces. Seismic analyses were performed on a gravity-type caisson subjected to an actual earthquake motion. Comparison of the analysis results with a similar caisson without any protective cushion showed that the use of cushion yields a significant reduction of seismic load on the structure.

Original languageEnglish
Pages567-572
Number of pages6
DOIs
Publication statusPublished - Nov 21 2005
Externally publishedYes
Event24th International Conference on Offshore Mechanics and Arctic Engineering, 2005 - Halkidiki, Greece
Duration: Jun 12 2005Jun 17 2005

Other

Other24th International Conference on Offshore Mechanics and Arctic Engineering, 2005
CountryGreece
CityHalkidiki
Period6/12/056/17/05

All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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  • Cite this

    Hazarika, H. (2005). On stability improvement of gravity type onshore and offshore structures. 567-572. Paper presented at 24th International Conference on Offshore Mechanics and Arctic Engineering, 2005, Halkidiki, Greece. https://doi.org/10.1115/OMAE2005-67283