核电工程结构抗震设计研究综述(Ⅱ)

Review on seismic design of nuclear power project(Ⅱ)

就核电站结构抗震设计中一些需要关注的问题提出了看法,主要包括:核岛地基的抗震适应性问题,主要考虑复杂非均质地基上结构-地基动力相互作用问题;讨论了三向地震作用下构件地震响应的组合问题;分析了乏燃料池、反应堆等存在固液耦合情况下的水动力作用,并分一般贮液容器、高架贮液容器、考虑地面转动、考虑竖向地震作用等情况分别作了介绍;研究了厂房子系统的抗震问题,主要是楼层谱受材料特性及地基参数不确定性影响的问题。上述内容可供从事核电站结构抗震的科研、设计人员参考。

With regard to some problems worth considering in seismic design of nuclear power project,some opinions are proposed,including seismic applicability of plant foundation,especially dynamic foundation-structure interaction on complex non-homogeneous foundation;seismic response combination of structure under three direction earthquake;hydrodynamics problems happened in spent fuel pool,reactor,in which solid-fluid coupling effect exists,and the problems are further discussed from the following categories： common liquid container,elevated supporting liquid container,considering ground rotation and vertical earthquake;seismic design of subsystem of plant,especially the floor response spectrum influenced by uncertainty of parameters of material and foundation.The above issues could be referred by researchers and engineers involved in seismic design of nuclear power plant.