楼板隔震消能结构体系

Slab isolating and energy dissipating(SIED) structural system

提出了一种新型减震结构体系——楼板隔震消能结构体系。该结构体系的特点是:竖向荷载传递途径与传统结构相同,但在楼板与主体结构水平承重构件之间设置高阻尼隔震层,在楼板与主体结构竖向承重构件之间留出空隙,并在其中安装消能阻尼器,使结构在发生水平振动时楼板与主体结构之间能够发生一定的相对运动,产生隔震和消能作用,减小结构的地震反应。本文给出了单层楼板隔震消能结构的运动微分方程,以及基底输入谐和振动时的结构传递函数,并分析了结构参数对传递函数的影响。

A new kind of structural system called slab isolating and energy dissipating （SIED） structural system is proposed, which has been applied for the China patent. This structural system has the following characteristics： the vertical load passing way is the same as that of the usual structural systems. The slabs are isolated from the horizontal structural components with high damping isolation bearings. Between the slabs and the vertical structural components, gaps must be existing, so that the slabs can move relatively to the main structure when the building vibrates horizontally. The isolation bearings under the slabs and the energy dissipation devices installed inside the gaps can play the roles of isolation and energy dissipation during earthquakes and reduce the seismic responses of the building. This paper presents the equation of motion of the single storey SIED structure and the transfer functions under the harmonic excitation input on the base of the structure. The influence of the parameters of SIED structure on the transfer functions has been studied.