Probabilistic Design of Gravity Foundations for Arctic Offshore Structures

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by Vitoon Vivatrat, Brian Watt Associates Inc, Houston, TX, USA,
Stephen Slomski, Brian Watt Associates Inc, Houston, TX, USA,
Brian J. Watt, Brian Watt Associates Inc, Houston, TX, USA,

Document Type: Proceeding Paper

Part of: Civil Engineering in the Arctic Offshore

Abstract: The use of the probabilistic simulation technique to estimate the variability of the resistance and the ice load on arctic gravity structures is illustrated in order to assess the safety and reliability of a hypothetical caisson-retained island. The results are then compared with the deterministic approach. The example design is one in which both the ice load and the foundation resistance vary with time.

Subject Headings: Offshore structures | Foundation design | Probability | Ice loads | Load and resistance factor design | Structural design | Structural safety | Gravity loads | Structural reliability | Arctic

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