摘要
为探讨隔震技术在核电工程的应用,对某核电站应急指挥中心进行隔震设计及相应分析:对隔震层的方案进行详细的阐述,包括隔震支座的选型及布置;建立应急指挥中心的有限元模型并进行非线性动力反应分析,探讨结构在地震作用下的动力特性、加速度反应和位移反应。分析表明:通过隔震层的变形吸收地震的能量,可以显著降低上部结构的地震反应,结构的减震效果达到70%左右,隔震效果明显,提高了应急指挥中心的抗震裕量,可以有效保护应急指挥中心的人员、设备和系统的安全,从而提升核电站震后应急能力。分析研究成果对隔震技术在核电领域的推广应用有一定的积极意义。
In order to discuss the application of isolation technology in nuclear power engineering,isolation design and analysis of an emergency control center building,including expatiation of selection and layout of the isolation bearings,finite element model building and nonlinear dynamic analysis,were carried out. Dynamic characteristics,acceleration response,displacement response of the isolated and non-isolated structure under earthquake action were discussed. The analysis shows that the seismic response of the superstructure can be greatly weakened. The story shear force of isolated structure can be reduced to about 70% compared to non-isolated structure under earthquake action. The isolation effect is so obvious that the seismic margin of the emergency control center can be improved clearly. This technical solution can be employed to protect the emergency control center personnel,equipment and system,enhance the emergency response capacity of nuclear power plant at all. Research results have a certain significance to the application of isolation technology in the field of nuclear power.
出处
《工业建筑》
CSCD
北大核心
2014年第12期41-43,47,共4页
Industrial Construction
关键词
核电站
应急指挥中心
隔震层
隔震支座
地震反应
nuclear power station
emergency control center
isolation layer
isolation bearing
seismic response
