地震作用下新结构体系中阻尼器研究  

STUDY ON DAMPERS IN NEW STRUCTURAL SYSTEM SUBJECTED TO SEISMIC LOADS

作　　者：连业达[1] 张洵安[1] 毕金凤[1] 王朝霞[2] 

机构地区：[1]西北工业大学力学与土木建筑学院,西安710072 [2]西安建筑科技大学土木工程学院,西安710055

出　　处：《工业建筑》2006年第2期16-19,共4页Industrial Construction

基　　金：西北工业大学科技创新基金(M450211);西北工业大学研究生创业种子基金资助(Z200534)

摘　　要：对巨-子型有控结构体系进行了随机振动谱及时程分析,显示出了这种新结构体系具有优良的抗震性能;在结构反应敏感部位合理安装耗能阻尼器后,子结构的调频优势不会削弱,阻尼器的耗能作用充分体现,所以结构反应可以进一步降低;针对这种新结构体系,建议了一种简单、易于工程实现、减震效果明显、且不改变结构自振频率的阻尼器———粘滞阻尼器。It is analyzed that random vibration spectrum and time history curve of reflection of mega-sub controlled structural system subjected to seismic loads. It is also observed that this new kind of structural system holds more merits of resisting seismic forces. The seismic reflections of the structure may be depressed further, when dampers are appropriately fixed in the sensitive part of the structure, which makes the best of dissipation capacity of dampers and can not weaken tuned advantage of subframes. For this new building system , viscous dampers are proposed, which can easily be actualized in practical engineering, can not change natural frequency of structure and produce prominent controlling effect.

关 键 词：随机振动谱分析 巨-子型结构体系 粘滞阻尼器 调频质量阻尼器 时程分析 

分 类 号：TU352.1[建筑科学—结构工程]