一种剪切型铅阻尼器及其在某火电厂房中的应用  

A NEW TYPE OF SHEARING LEAD DAMPER AND ITS APPLICATION IN MILL BUILDINGS FOR A THERMAL POWER PLANT

作　　者：闫维明[1] 张春科[1] 彭凌云[1] 姚义[1] 

机构地区：[1]北京工业大学工程抗震与结构诊治北京市重点实验室,北京100022

出　　处：《工业建筑》2008年第7期41-44,49,共5页Industrial Construction

基　　金：国家自然科学基金资助项目(50078003)

摘　　要：首先介绍了一种新型剪切型铅阻尼器,该剪切型铅阻尼器构造简单、制作成本低,性能试验表明,该阻尼器能够提供与常规剪切型铅阻尼器相近的滞回曲线。然后介绍了该剪切型铅阻尼器在某火电厂房减震控制中的应用,在小震作用下,阻尼器能够为结构提供2%附加阻尼比,非线性时程分析对此进行了验证,在大震作用下,通过Pushover分析表明,安装阻尼器后的结构具有很好的抗震性能,在震后可继续使用。It is introduced a new type of shearing lead damper, the shearing lead damper has simple structure and low production cost, performance tests showed that this damper can provide the similar hysteresis curve with that of conventional shearing lead damper. This new type of shearing lead dampers are used in mill buildings for a thermal power plant to reduce earthquake effect. Under the disturbance by small earthquakes, the damper can provide the structure with the additional 2 % damping ratio, which was verified by non-linear analysis of time-hislory; in strong earthquake, through Pushover analysis, it was showed that the structure with the dampers has a good seismic performance, which may also be used in the post- earthquake.

关 键 词：剪切型铅阻尼器 等效阻尼比 非线性时程分析 PUSHOVER分析 

分 类 号：TU352.1[建筑科学—结构工程]