Pushover分析在核电常规岛抗震设计中的应用  

Pushover Method Applied in Seismic Design of Nuclear Power Conventional Islands

作　　者：林少波[1] 徐勍[1] 周建章[1] 张建成[1] 

机构地区：[1]华东电力设计院,上海200063

出　　处：《结构工程师》2010年第2期126-130,共5页Structural Engineers

摘　　要：鉴于核安全的重要性,核电工程结构设计中对常规岛主厂房的抗震设计要求较高。介绍在常规岛主厂房抗震设计中采用Pushover方法所作的结构极限安全地震作用下弹塑性变形分析,结果表明结构构件均未达到其极限承载力,整个结构在地震作用下可以保持稳定不会发生倒塌。另外,通过计算分析得到的位移结果验证了结构变形不会影响到核岛辅助和附属厂房,结构能够满足核安全设计原则。The seismic design requirement of conventional island main buildings is increasingly enhanced because of the significance of nuclear safety.The pushover analysis method was used in this paper to calculate structural elasto-plastic deformation under ultimate safety earthquake in the seismic design of conventional island main buildings.The analytical results show that the structural members do not reach their limit bearing capacities,the main structure can remain stable and the total collapse does not occur.The analytical results also verify the elasto-plastic deformation of the structure does not affect nuclear island affiliated buildings.The structural seismic performance evaluated by deformation indicates that it is safe and reliable to meet the nuclear safety design principles.

关 键 词：PUSHOVER分析 极限安全地震 弹塑性变形 抗震性能 

分 类 号：TU352.11[建筑科学—结构工程]