核电站应急指挥中心隔震设计及地震响应分析
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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.
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.
引文
[1]周云.芦山县人民医院门诊综合楼隔震结构分析与设计[J].建筑结构,2013,43(24):23-27.
[2]谢礼立,翟长海.核电工程应用隔震技术的可行性探讨[J].地震工程与工程振动,2012,32(1):1-10.
[3]GB 50011—2010建筑抗震设计规范[S].
[4]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[5]傅金华.日本抗震结构及隔震结构的设计方法[M].北京:中国建筑工业出版社,2011.
[6]NRC Regulatory Guide 1.60.Design Response Spectra for Seismic Design of Nuclear Power Plants[S].1973.
[2]谢礼立,翟长海.核电工程应用隔震技术的可行性探讨[J].地震工程与工程振动,2012,32(1):1-10.
[3]GB 50011—2010建筑抗震设计规范[S].
[4]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[5]傅金华.日本抗震结构及隔震结构的设计方法[M].北京:中国建筑工业出版社,2011.
[6]NRC Regulatory Guide 1.60.Design Response Spectra for Seismic Design of Nuclear Power Plants[S].1973.
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