竖向隔震的机理研究和装置设计  

Mechanism and Devices for 3-Dimensional Seismic Isolation Bearing in Vertical Direction

作　　者：李雄彦[1] 薛素铎[1] 

机构地区：[1]北京工业大学建筑工程学院城市与工程安全减灾省部共建教育部重点实验室,北京100022

出　　处：《北京工业大学学报》2008年第10期1043-1047,共5页Journal of Beijing University of Technology

基　　金：国家自然科学基金项目资助(50778006);北京市属市管高等学校人才强教计划项目资助(05004790200701).

摘　　要：针对空间网格结构的复合隔震,重点研究其竖向隔震机理.首先建立了支座竖向刚度、激励特征频率与隔震系数间的关系,验证了竖向隔震的可行性;结合支座的应用条件,建立了支座竖向刚度计算公式,为支座的竖向隔震装置设计提供了依据;并给出了弹簧隔震装置的设计方法.Focused on 3-dimensional seismic isolation for latticed roofs, the mechanism and device in vertical direction of the bearing are discussed. Firstly, absolute isolation effectiveness （ Sie ） is introduced. Based on Sie, the relationship between vertical stiffness and characteristic frequency of input excitations is established, and it verifies that means of seismic isolation in vertical direction is realizable. Then the formula for stiffness in vertical direction is developed. Finally, some parameters related to the design of springs are analyzed, and the practical measures are established as well.

关 键 词：竖向隔震 支座 刚度 机理 设计方法 

分 类 号：TU311.3[建筑科学—结构工程]