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Seismic performance evaluation of jacket-type offshore platforms using endurance time method considering soil-pile-superstructure interaction

Hasani, H ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. Publisher: Sharif University of Technology , 2017
  3. Abstract:
  4. In this paper, application of Endurance Time (ET) method in nonlinear seismic analysis of offshore pile supported systems has been studied. The ET method is a time-history analysis in which structures are subjected to intensifying artificial acceleration functions. The ET method reduces complexity and computational demand of conventional nonlinear seismic analysis, and it provides response at different seismic levels in a single ET analysis. The aforementioned methodology has been applied to a typical model of single pile and then to a functional jacket offshore platform in Persian Gulf region. Seismic response of aforesaid models by ET method has been compared with conventional time-history method. The results indicate that ET method is reliable in capturing seismic response of offshore platforms supported on piles with an acceptable accuracy. © 2017 Sharif University of Technology
  5. Keywords:
  6. Endurance time method ; Jacket offshore platform ; Seismic assessment ; Single pile ; Soil-pilesuperstructure interaction ; Drilling platforms ; Offshore structures ; Seismic design ; Seismic response ; Seismology ; Endurance time methods ; Jacket type offshore platform ; Nonlinear seismic analysis ; Off shore platforms ; Seismic performance evaluation ; Single piles ; Soil-pile-superstructure interaction ; Piles
  7. Source: Scientia Iranica ; Volume 24, Issue 4 , 2017 , Pages 1843-1854 ; 10263098 (ISSN)
  8. URL: http://scientiairanica.sharif.edu/article_4275.html