摩擦-弹簧水平隔震系统的模型与设计  

Model and Design Method of a Sliding Bearing Combimed with Springs for Horizontal Seismic Isolation

作　　者：李雄彦[1] 薛素铎[2] 

机构地区：[1]北京工业大学城市与工程安全减灾教育部重点实验室,北京100124 [2]北京工业大学工程抗震与结构诊治北京市重点实验室,北京100124

出　　处：《北京工业大学学报》2011年第11期1650-1654,共5页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(50778006);北京市属市管高等学校人才强教计划资助项目;北京工业大学博士科研启动基金资助项目

摘　　要：为解决空间网格结构三维复合隔震的水平隔震问题,提出了一种摩擦-弹簧水平隔震装置.新开发的水平隔震系统依靠摩擦滑移隔震,由并联弹簧实现震后复位.针对隔震与复位,建立了装置的力学模型,通过目标隔震周期导出了摩擦系数与滑移幅值间的关系式,并依据滑移幅值确定了复位弹簧的刚度计算方法.同时依据力学模型,给出了水平隔震装置的设计方法.A new type of control device, which is fit for the horizontal seismic isolation of a bearing involved three-dimensional seismic isolation for spatial latticed structures, is introduced in the paper. The device is combined frictional sliding system with helical springs. The horizontal seismic isolation of the device mainly depends on frictional sliding system, and its restoring force comes from the incorporated helical springs. Based on the device, the mathematical model of the system was developed, and the relationship between sliding coefficient and amplitude of the sliding displacement were established. Meanwhile, the formula for stiffness calculating of the springs was derived. In addition, the design method for the system was advised.

关 键 词：支座 隔震 摩擦滑移 弹簧 复位刚度 

分 类 号：TU352[建筑科学—结构工程]