摘要
对设置铅阻尼器的火电厂悬吊煤斗结构的耗能减震性能进行了研究。首先用解析方法分析了一个双自由度悬吊体—阻尼器结构的地震反应。然后基于地震弹塑性时程计算方法,通过设计具有不同屈服点的双线性屈服模型,分析了设置有铅阻尼器的煤斗悬吊结构的地震反应。计算结果表明,铅挤压式阻尼器对控制悬吊煤斗与结构的相对位移、减小火电厂的结构地震反应有显著的效果。
It is studied that the seismic properties of suspending coal hopper structure with lead dampers in thermal power plant.Firstly,the seismic response of a two freedom suspending structure with dampers is analyzed by an analytical approach.Then based on the calculation method of elasto-plastic time history analysis,the seismic response of the suspending coal hopper structure with lead dampers is analyzed by designing different yield-points of bilinear yielding model.The result indicates the extruded lead dampers have a distinct effect on controlling relative displacement between suspending coal hopper and structure and reducing the seismic response of the thermal power plant.
出处
《工业建筑》
CSCD
北大核心
2006年第z1期203-206,共4页
Industrial Construction
关键词
悬吊煤斗
铅挤压式阻尼器
耗能
减震
suspending coal hoppers extruded lead damper energy dissipation vibration reduction
