An analytical approach for offshore structures considering soil-structure interaction

Ali Sari, Kasim Korkmaz*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


This paper presents an advanced analytical approach for the design and analysis of fixed offshore structures with soil structure interaction considered. The proposed methodology involves conducting case studies to illustrate and assess the structural response of a structure considering seven different earthquakes, with the primary goal of ensuring there is no global collapse in the structures. The case studies focus on developing a model for structural analysis and its topside, incorporating nonlinear axial and lateral springs to capture soil-pile interaction. Additionally, mass and damping ratios are considered through the use of dashpots in the analyses. Finite Element Software was employed for structural analyses with detailed modeling, with soil spring nodes applied in the entire structure across various depths. After the finite element analysis was carried out, a sensitivity analysis was conducted to quantify and report the effects of different parameters.

Original languageEnglish
Pages (from-to)25-38
Number of pages14
JournalAdvances in Computational Design
Issue number1
Publication statusPublished - 1 Jan 2024

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  • finite elements
  • offshore structures
  • soil-structure interaction
  • structural response


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