高层框架—核心筒体结构体系消能减震装置的研究

为更有效地提高框—筒结构的抗震性能,对该结构体系在核心筒体周围与框架各层楼板的连接处所设置的消能减震装置进行了研究。重点研究了V型弹簧钢干摩擦减震器和使用砂作为耗能材料的砂质减震器,并使用特制的试验加载设备测试了它们的力学性能。在此基础上,对装有减震器的框—筒结构体系的地震反应进行了理论探讨。初步分析结果表明,使用减震器后,减震效果是显著的。

STUDY ON ENERGY ABSORBERS USED IN THE TALL FRAME-CORETUBE STRUCTURAL SYSTEM

In engineering practice, tall frame-core tube structures have a wide prospect. It is obvious that the traditional earthquake resistant methods by enlarging the strength and ductility of the structural members are rather passive and uneconomic. In order to incresase efficiently the earthquake resistant ability of frame-tube structures, this paper presents a study on energy absorbers introduced into the gap between the stiff core and each floor of the frame for tall frame-tube systems. V-shaped frictional energy absorbers, made of spring steel, and energy absorbers, with sand as energy dissipating material, have been successfully developed. Using specially designed experimental devices, their mechanical behavior are measured. The paper also discusses theoretically the earthquake response of tall frrame-core tube structural systems equipped with energy absorbers. It is notable for energy absorbers to diminish the earthquake response of the structural system.