碟形弹簧竖向减震装置的性能试验研究  

Mechanical Performance of a Vertical Seismic Isolation System Employing a Dish Spring

作　　者：张玉敏[1] 苏幼坡[1] 苏经宇[2] 

机构地区：[1]河北理工大学建筑工程学院,唐山063009 [2]北京工业大学建筑工程学院,北京100044

出　　处：《重庆建筑大学学报》2008年第6期51-55,共5页Journal of Chongqing Jianzhu University

基　　金：国家自然科学基金项目(50278093)

摘　　要：基础隔震技术是目前应用最广泛的结构控制方法,但是,目前这种技术只是最大限度地减少或隔离水平地震作用,而对竖向地震作用几乎没有影响。为改善隔震技术在隔离竖向地震中的限制,研制了一种由碟形弹簧和粘弹性阻尼器组合而成的碟形弹簧竖向减震装置,并对其进行了在静载和动载作用下的力学性能试验研究,给出了该装置在竖向静力和动力作用下的等效刚度和阻尼比,建立了恢复力模型,试验研究表明,碟形弹簧竖向减震装置能有效的解决竖向大承载力和竖向阻尼的难题,力学性能优良且稳定,加工制作容易,是一种比较理想的竖向减震装置。The base-isolation technique has been widely used in different countries to reduce seismic disasters during earthquakes. But most of these devices are effective only in horizontal earthquake responses and do not work well in vertical earthquake responses. We propose a vertical seismic isolation system composed of a dish spring and a visco-elastic damper. To study the stiffness and damping performance of this isolation system, a series of tests under static and dynamic loads were performed. The results show that this system is effective in solving problems related to strong vertical bearing capacity and vertical damping of vertical isolation. The system has not only appropriate vertical stiffness and damper performance, but also excellent mechanical performance. In addition, it is compact, easy to manufacture, and can serve as an ideal vertical damping device.

关 键 词：碟形弹簧 粘弹性阻尼器 竖向地震等效刚度 等效阻尼比 恢复力特性 

分 类 号：TU375[建筑科学—结构工程]