Reliability of floating structures: Extreme response and load factor design
Conference
·
OSTI ID:128921
- Stanford Univ., CA (United States). Civil Engineering Dept.
The reliability of a floating offshore platform against extreme offsets is studied. Methods are illustrated to perform more refined analysis of extreme loads and load effects. These include the effect of nonlinear diffraction under random wave excitation. They permit inclusion of randomness in significant wave height H{sub s}, in peak spectral period T{sub p} given H{sub s}, and also in the extreme load effect given both H{sub s} and T{sub p}. Numerical effects are demonstrated by applying these methods to a specific floating structure: a deep-draft spar buoy. Design of the spar has been considered in two deep-water sites, one in the Gulf of Mexico and another in the Northern North Sea. Appropriate joint contours of significant wave height and peak period are developed, and used to develop load and resistance factors for each of the two sites.
- OSTI ID:
- 128921
- Report Number(s):
- CONF-950501--
- Country of Publication:
- United States
- Language:
- English
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