核电站常规岛主厂房基于性能的抗震分析  

PBSD study on seismic behavior of main machine hall in conventional island

作　　者：林生逸[1] 彭雪平[1] 韩小雷[2] 周玉[1] 

机构地区：[1]广东省电力设计研究院,广东广州510640 [2]华南理工大学亚热带建筑科学国家重点实验室,广东广州510640

出　　处：《地震工程与工程振动》2011年第5期50-59,共10页Earthquake Engineering and Engineering Dynamics

基　　金：华南理工大学亚热带建筑科学国家重点实验室开放基金资助项目(2009KB21)

摘　　要：常规岛主厂房是一种特殊的工业建筑结构,具有质量、刚度分布不均、多错层等特点,其抗震重在保证电厂运行功能在设防预期的水准地震作用下不中断,避免重大设备损坏而造成的严重财产损失。基于性能的抗震设计方法是目前国际上先进的抗震设计方法。首次将设计流程引入到核电站常规岛主厂房结构抗震设计中,在小震和中震弹性分析基础上,采用基于纤维模型理论的PER-FORM-3D软件对典型常规岛主厂房整体结构进行大震动力弹塑性时程分析。并参考美国基于性能抗震规程ASCE-41及FEMA356制定构件变形性能指标,对构件的变形响应进行评估。最后针对主厂房的抗震性能给出了相应的设计建议。Due to the requirements of the machine equipment,the main machine hall is irregular in mass and stiffness.It is important to notice that the essential purpose of main machine hall is to prevent serious damage to important equipment.Performance-based design method of structures is considered to be an international advanced seismic design idea,which require designers to quantify the behavior of the structure components due to multiple performance targets that will be adopted in design procedure.Based on the elastic analysis under frequent and moderate earthquake action,inelastic time history analysis under rare earthquake is carried out with PERFORM3D,in which the fiber model is used.To evaluate the deformation performance of the components,a guideline is proposed in this paper based on ASCE-41 and FEMA356.It can also be concluded that in this way the energy dissipated is differ from the one expected.Design suggestion is given in this paper according to the structure performance.

关 键 词：核电站常规岛 基于性能 弹塑性时程分析 纤维模型 

分 类 号：TU318[建筑科学—结构工程]