滑移隔震结构设置连接摩擦阻尼器的地震反应研究

Research on Seismic Responses of Friction Damper with Coupling Mechanism for Sliding Isolation Structures

针对罕遇地震作用下,滑移隔震结构滑移量过大控制力不足的问题,提出了带有连接部件,控制滑移隔震结构过大滑移量的被动控制装置-连接摩擦阻尼器。研究滑移隔震结构附加连接摩擦阻尼器时的地震反应情况,并通过实际算例分析表明:滑移隔震结构附加连接摩擦阻尼器能够在不削弱滑移隔震支撑对中小地震控制效果的基础上,有效地控制大震以及罕遇地震作用时,隔震层的最大滑移量和上部结构的响应加速度。验证了滑移隔震结构附加连接摩擦阻尼器的有效性和适用性。

In order to solve the problem, that slip excessive and inadequate control of sliding isolation structure when rare earthquake happen, a new device for controlling seismic displacement of sliding isolation structure by the means of a friction damper with coupling mechanism is created. Earthquake responses of sliding isolation structure with friction damper with coupling mechanism was researched. And through practical case study, that sliding isolation structure with friction damper with coupling mechanism can not weaken the control effect of sliding support for small earthquake, while controlling the maximum displacement of slip and the maximumacceleration of the upper structure for rare earthquake effectively. Verify that the sliding isolation structure with friction damper with coupling mechanism is effective and applicable.