设置铅阻尼器的某大型火力发电厂耗能减震分析  

Energy Consumption Analysis of a Main Machine Hall for the Thermal Power Plant with Lead Dampers

作　　者：李荣[1] 张博[1] 薛涛[1] 

机构地区：[1]国核电力规划设计研究院,北京100095

出　　处：《工程抗震与加固改造》2015年第4期67-73,共7页Earthquake Resistant Engineering and Retrofitting

摘　　要：铅阻尼器是一种滞回性能稳定、构造简单、受环境影响较小的耗能减震装置。为了研究铅阻尼器在某大型火力发电厂结构中的耗能减震效果,本文采用非线性分析软件ABAQUS对设置铅阻尼器的某大型火力发电厂结构进行了罕遇地震作用下的有限元分析,对比了不同地震波作用下的弹塑性分析结果。分析结果表明:设置铅阻尼器以后,结构的抗震性能显著提高,在罕遇地震作用下能够满足"大震不倒"的性能要求,研究为铅阻尼器在大型火力发电厂主厂房结构中的应用提供了成功的工程案例,其设计思路可以为大型火力发电厂主厂房结构的减震提供有益的借鉴和参考。The lead damper is a kind of energy dissipating device with stable hysteretic performance,good shock absorption performance and simple structure. To study the lead damper damping effect in the main machine hall,the nonlinear finite element analysis software ABAQUS is adopted to analyze the seismic performance of a main machine hall with lead damper under the action of the rare earthquake and the elastic-plastic analysis results are compared under the action of different seismic wave in this paper. The results show that the structural seismic performance is improved significantly,＂no collapse under strong earthquake ＂ can be achieved,A successful engineering case is provided for the application of lead damper in the damping design of main machine hall structures.

关 键 词：大型火力发电厂主厂房 铅阻尼器 弹塑性时程分析 抗震性能评价 

分 类 号：TU352.11[建筑科学—结构工程]