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预应力混凝土安全壳在国内核电站中应用广泛,其工作性能与核安全密切相关,需采用科学的分析手段对安全壳的结构极限承载能力进行评估,以满足准确制定核电站严重事故管理导则的需要。针对常用的大型有限元软件Abaqus在预应力混凝土安全壳结构极限承载力分析中的一些关键问题进行讨论。
Prestressed concrete containment is widely used in nuclear power plants in China and its performance is closely related to nuclear safety. Scientific analysis methods are required to evaluate the ultimate bearing capacity of containment so as to meet the need of accurately formulating guidelines for serious accident management of nuclear power plants . Some key problems in the analysis of the ultimate bearing capacity of prestressed concrete containment structures are discussed based on the commonly used large-scale finite element software Abaqus.