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对初始安装阶段的桶型基础进行了研究.分析了不同长度及水深时结构所受的负压,将结构简化成一端固定、一端自由边界条件的圆柱薄壳.针对简化模型,采用经典的薄壳理论对结构进行了理论分析,推导出结构在负压作用下的挠度、弯矩等的解析表达式,并研究了桶长、半径等形状参数对结构的影响;同时以Europipe16/11E导管架平台的桶形基础为实例进行计算,并与有限元分析的结果作了对比,得到了较为满意的结果.根据文中方法编制的计算程序简单方便,适合于实际工程中的预算和评估
The bucket foundation in the initial installation stage was studied.The negative pressure on the structure with different length and depth was analyzed and the structure was simplified into a cylindrical shell with one end fixed and one end free boundary condition.According to the simplified model, Shell theory of the structure of a theoretical analysis of the structure derived under the action of negative pressure deflection, bending moment and other analytical expressions, and study the barrel length, radius and other shape parameters on the structure; at the same time Europipe16 / 11E jacket The bucket foundation of the platform is calculated as an example and compared with the results of finite element analysis, and the satisfactory results are obtained.According to the method of the paper, the calculation program is simple and convenient, which is suitable for the budget and evaluation of the actual project