文献类型： 会议论文

第一作者： J. S. Templeton, III

作者： J. S. Templeton, III ¹ ;

作者机构： 1.SAGE USA, Inc.

会议名称： Offshore Technology Conference; 20080505-08; Houston,TX(US)

主办单位：

页码： 2872,2883-

摘要： This paper presents the methods and results of nonlinear of 3-D finite element analysis of the response of the Maleo Producer Mobile Offshore Production Unit to earthquake loading conditions. The analysis performed combined the determination local site response, the soil -structure interaction and the structural dynamic response to earthquake loading all in a single analysis. This advanced approach was motivated by the need to eliminate unwanted excess conservatism from the determination of response to severe earthquake loading conditions on a soft clay site. The product of the analyses reported in this paper produced fundamentally based predictions of dynamic response of the subject structure to substantial earthquake loading conditions. The results obtained included sufficient response details to enable acceptable assessments of foundation and structural performance for the design earthquake conditions. The nonlinear dynamic analyses of this study produced results for the platform performance which were more realistic than those previously produced via more conventional analysis techniques. This resulted in the elimination of substantial amounts of unacceptable excess conservatism, and paved the way for certification of the structure. To the author's knowledge, this is the first complete, combined, finite element analysis of site response, soil-structure interaction and structural dynamic response to earthquake loading yet published, not only for a mobile offshore production unit but indeed for an offshore structure of any kind. The demonstrated capability to perform this kind of analysis has the potential to revolutionize practices for the analysis of offshore structure response to earthquake loading.

分类号： [ "P75" , "P75"]