TY - GEN
T1 - Reliability of mooring dolphin structures
T2 - 17th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2009
AU - El-Bordany, R.
AU - El-Meligy, M.
AU - Haldar, A.
PY - 2009
Y1 - 2009
N2 - The steel-pile-soil-system as a mooring dolphin structure is an important element of marine structures. However, the reliability of this system is very difficult to predict due to inherent uncertainties in the marine environment. The objective of this paper is twofold; (i) to investigate the influences of several sources of uncertainties on different limit states of a steel-pile-soil mooring dolphin under axial and lateral loading conditions and (ii) to suggest partial safety factors required for the codified design. In doing so, the response surface method, RSM is used in reliability analysis. A grid of sampling response points is obtained from a realistic built up NLFEM. Then, this grid is used to formulate a response function equivalent to the implicit limit state function With the help of realistic examples, the most important random variables and limit state are identified. For routine design, partial safety factors are proposed.
AB - The steel-pile-soil-system as a mooring dolphin structure is an important element of marine structures. However, the reliability of this system is very difficult to predict due to inherent uncertainties in the marine environment. The objective of this paper is twofold; (i) to investigate the influences of several sources of uncertainties on different limit states of a steel-pile-soil mooring dolphin under axial and lateral loading conditions and (ii) to suggest partial safety factors required for the codified design. In doing so, the response surface method, RSM is used in reliability analysis. A grid of sampling response points is obtained from a realistic built up NLFEM. Then, this grid is used to formulate a response function equivalent to the implicit limit state function With the help of realistic examples, the most important random variables and limit state are identified. For routine design, partial safety factors are proposed.
KW - Reliability analysis. Partial safety factors
KW - Response surface method
KW - Soil-structure interaction
KW - Steel-pile-soil-system
UR - http://www.scopus.com/inward/record.url?scp=84865193428&partnerID=8YFLogxK
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U2 - 10.3233/978-1-60750-031-5-1293
DO - 10.3233/978-1-60750-031-5-1293
M3 - Conference contribution
AN - SCOPUS:84865193428
SN - 9781607500315
T3 - Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering
SP - 1293
EP - 1296
BT - Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering
Y2 - 5 October 2009 through 9 October 2009
ER -