某核电站安全壳隔震动力响应规律初探
摘 要：在核电站的运行过程当中，保证其安全可靠是极为关键的，核电厂核岛最重要厂房结构——安全壳是核反应堆承受事故的最后一道安全屏障，对安全壳的抗震设计是核电站设计的重中之重，历来就是国内外土建界关心和研究的重点。隔震结构有别于传统的抗震设计理念，是指在结构底部与基础面之间设置某种隔震装置，既能很好的承担结构的竖向荷载，又因为它的侧向刚度比较低，能够增大结构的自振周期和减小上部结构的地震反应，从而确保上部结构安全。隔震技术已在各国得到了比较广泛的关注，并广泛运用于各种房屋建筑、公路桥梁及结构的加固中。本文对于核电站的安全壳隔震能力进行了评估，通过动力响应规律的考察来对其进一步的发展进行探讨，力求提升核电站的运行稳定性。
关键词：核电站；安全壳；隔震
中图分类号：TM623 文献标识码：A
文章编码：1672-7053(2018)01-0114-02
Abstract：during the operation of nuclear power station, to ensure its safety and reliability is very important, the most important nuclear power plant nuclear island - containment is the last safety barrier of nuclear reactor under accident, the seismic design of the containment is priority among priorities of nuclear power plant design, has always been the focus of domestic and foreign civil community care and research. The isolation structure is different from the traditional concept of seismic design, refers to a certain isolation device is arranged between the bottom and foundation surface, which can well bear the vertical load of the structure, but also because of its lateral stiffness is relatively low, can increase the vibration period and reduce the earthquake response of upper structure, so as to ensure the the safety of the structure. Isolation technology has been widely concerned in various countries, and is widely used in the reinforcement of various building buildings, highway bridges and structures. In this paper, the isolation capability of containment for nuclear power plants is evaluated, and further development of them is discussed through the investigation of dynamic response rule, so as to enhance the operation stability of nuclear power plants.
Key Words：nuclear power station; containment; isolation
