基底隔震对核电站反应堆厂房的地震响应影响分析

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英文篇名：Influence Analysis on Seismic Response of Reactor Building of NPP Affected by Base-seismic Isolation 作者：朱秀云 ; 林皋 ; 潘蓉 英文作者：ZHU Xiu-yun ; LIN Gao ; PAN Rong ; Institute of Earthquake Engineering ; Faculty of Infrastructure Engineering ; Dalian University of Technology ; Nuclear and Radiation Safety Center ; Ministry of Environmental Protection 关键词：基底隔震 ; 核电站反应堆厂房 ; 地震响应 ; ANSYS软件 英文关键词：base-seismic isolation ; reactor building of NPP ; seismic response ; ANSYS software 刊名：原子能科学技术 英文刊名：Atomic Energy Science and Technology 出版日期：2017-04-20 出版单位：原子能科学技术 机构：大连理工大学建设工程学部工程抗震研究所;环境保护部核与辐射安全中心; 年：2017 期：04 基金：国家自然科学基金资助项目(51408255) CN：11-2044/TL ISSN：1000-6931 页：136-142 页数：7 分类号：TU352.12;TM623 语种：中文; 文件大小：218K

摘要

以某核电站反应堆厂房为研究对象,运用有限元分析软件ANSYS对比分析了极限安全地震动作用下采用基底隔震技术和不采用隔震技术厂房结构的地震响应。结果表明,采用基底隔震后能有效地减小反应堆厂房的水平向楼层反应谱、加速度响应及地震作用;采用基底隔震后厂房整体水平向的位移较大,位移主要集中在筏板基础处的隔震层,厂房结构本身楼层间的相对位移很小,呈现出类似刚体位移的特征;此基底隔震方案在水平向的隔震效果显著,而在竖直向隔震效果不明显。
        Taking the reactor building of NPP as an example,comparison analysis of seismic responses was carried out with and without base-seismic isolation technology by the finite element analysis software ANSYS.The results show that the floor response spectrum,acceleration response and seismic action of the reactor building in the horizontal direction can be effectively reduced after the application of base-seismic isolation.The overall displacement of reactor building in the horizontal direction is larger and mainly concentrated in raft foundation of the isolation while the relative displacement between the floors is very small,and the reactor building shows the characteristics similar to the rigid body displacement after the application of base-seismic isolation.This base-seismic isolation has a significant effect on the seismic response in the horizontal direction while the effect is not obvious in the vertical direction.

引文

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