【摘要】 在海洋工程建设中,钢筋混凝土带贮油罐平台的设计分析迄今尚是一个关键问题。本文介绍一种利用结构广义对称性的群论表示方法,研究它在海洋混凝土平台分析中的应用及多层子结构模型的实现。文中给出了一个考虑结构和地基共同工作的五腿海洋平台数值分析实例。更多还原

【Abstract】 The analysis of concrete platform with oil storages is one of the most difficult problems in design. In order to clarify the global distribution of stresses throughout whole structure, tremendous work has to be spent in finite element calculation upon which the stress level of the strueture can then be evaiuated In this paper, a high efficient group theoretical formulation of offshore platform with a variety of symmetries and in substructuring assembly is presented. In addition, the soil foundation can be idealized by a series of springs, thus the interaction of platform with its subsoil can be solved in a reasonable manner. A numerical example is presented for illustration of this method with great computing time saving, and a generai view of displacements and settlement of structure and foundation as a whole is given.更多还原