Reliability-based optimal design for very large floating structure

被引:0
|
作者
Zhang, SH
Fujikubo, M [1 ]
机构
[1] Hiroshima Univ, Grad Sch Engn, Div Struct Syst Engn, Dept Social & Environm Engn, Higashihiroshima 7398527, Japan
[2] Ocean Univ China, Coll Engn, Qingdao 266071, Peoples R China
关键词
very large floating structure; reliability; optimal design; initial cost; expected life; cycle damage cost;
D O I
暂无
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Costs and losses induced by possible future extreme environmental conditions and difficulties in repairing post-yielding damage strongly suggest the need for proper consideration in design rather than just life loss prevention. This can be addressed through the development of design methodology that balances the initial cost of the very large floating structure (VLFS) against the expected potential losses resulting from future extreme wave-induced structural damage. Here, the development of a methodology for determining optimal, cost-effective design will be presented and applied to a VLFS located in the Tokyo bay. Optimal design criteria are determined based on the total expected life-cycle cost and acceptable damage probability and curvature of the structure, and a set of sizes of the structure are obtained. The methodology and applications require expressions of the initial cost and the expected life-cycle damage cost as functions of the optimal design variables. This study includes the methodology, total life-cycle cost function, structural damage modeling, and reliability analysis.
引用
收藏
页码:11 / 19
页数:9
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