采用基底隔震核电站厂房的楼层反应谱分析  

FRS Analysis of Nuclear Power Plant Building with Base Isolation

作　　者：路立娜[1] 朱秀云 

机构地区：[1]长春建筑学院土木工程学院,长春吉林130699 [2]环境保护部核与辐射安全中心厂址与土建部,北京100082

出　　处：《工程抗震与加固改造》2017年第2期105-110,共6页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然基金资助项目(51408255)

摘　　要：基于有限元分析软件ANSYS,建立了某核电站厂房的三维有限元模型,对比分析了采用基底隔震和无隔震厂房的楼层反应谱。结果表明,采用基底隔震后能有效的减小厂房的水平向楼层反应谱,且随着楼层高度的增加,反应谱的放大效应不明显;竖直方向的隔震效果不明显,且在跨度较大的楼板中间区域,明显放大了竖向响应,下一步有待开展三维隔震系统的研究。The 3D finite element model of nuclear power plant （NPP） building is established, and comparison analysis of floor response spectrum （FRS） is carried out between with and without base-seismic isolation technology based on the finite element analysis software ANSYS. The results show that FRS of the NPP building in the horizontal direction can be effectively reduced after the application of base-seismic isolation and the amplification effect is not significant with the increase of the height of floor; the base-seismic isolation system has almost no isolation effect on FRS in the vertical direction, and the vertical FRS of nodes in the middle area of the large span floor is obviously enlarged. So, the research of 3D base isolation system will be developed in further studies.

关 键 词：基底隔震 楼层反应谱 核电站厂房 ANSYS软件 

分 类 号：TM623[电气工程—电力系统及自动化] TU352.12[建筑科学—结构工程]