摘要
针对我国典型的第二代核岛厂房进行了核岛厂房的整体基础隔震研究。采用SAP2000软件对我国典型的第二代核岛厂房建立了精细化有限元模型,提出了核岛整体隔震设计目标。对典型的核岛厂房进行了隔震支座的布置与选型。基于时程分析法,研究了整体基础隔震效果,并建立了核岛厂房的楼层反应谱。此外,本文研究了地震波加速度峰值、核岛厂房所处标高及设备阻尼比对楼层反应谱的影响。结果表明,核岛厂房采用整体基础隔震后能明显降低结构的地震反应和楼层反应谱值并且满足设防烈度从7度到9度的设防要求,大大提高了核岛厂房的抗震安全储备;同时核岛厂房采用整体隔震可提高核电厂厂址的适应性,方便将核电厂厂房及其内部结构和设施实现标准化和模块化设计。
Research on overall base isolation design of the typical second-generation nuclear island plant in China was presented.The fine finite element model of the typical second-generation nuclear island plant in China was established by the software of SAP2000,and the objective of overall base isolation design for nuclear island plant was proposed.Isolators were optimized and arranged for nuclear island plant herein.Time-history analysis of the isolated nuclear island plant was carried out and control effectiveness of overall base isolation of nuclear island plant was evaluated and the floor response spectrum of nuclear island plant was set up.In addition,the effects of seismic intensity,height of nuclear island plant and damping ratio of isolators to the floor response spectrum were investigated in this paper.Results show that base isolation technology can significantly reduce the seismic response of nuclear island plant and the value of floor response spectrum and meet the fortification requirements of fortification intensity area from 7 to 9 and increase the seismic safety reservation of nuclear island plant,meanwhile the overall base isolation of nuclear island plant can improve the adaptability of nuclear power plant site and facilitate the standardization and modular design of nuclear power plant and their internal structures and facilities.
作者
李广洲
谭平
LI Guangzhou;TAN Ping(College of Hydraulic and Civil Engineering,Shihezi University,Shihezi 832000,China;Xinjiang Production&Construction Groups Engineering Laboratory for Seismic and Energy-Saving Building in High Earthquake Intensity and Cold Zone,Shihezi 832000,China;Key Laboratory,of Earthquake Resistance Earthquake Mitigation and Structure Safety Ministry of Education,Guangzhou University,Guangzhou 510405,China;Guangdong Provincial Key Laboratory of Earthquake Engineering and Applied Technology,Guangzhou University,Guangzhou 510405,China)
出处
《地震工程与工程振动》
CSCD
北大核心
2020年第6期207-216,共10页
Earthquake Engineering and Engineering Dynamics
基金
国家重点研发计划项目(2017YFC0703600)
教育部创新团队项目(IRT13057)
广东省教育厅创新团队项目(2016KCXTD016)
广州市高校"羊城学者"首席科学家(1201541630)。
