摩擦-弹簧水平隔震系统的模型与设计

英文篇名：Model and Design Method of a Sliding Bearing Combimed with Springs for Horizontal Seismic Isolation
中文刊名：北京工业大学学报
英文刊名：Journal of Beijing University of Technology
作者：李雄彦 ; 薛素铎
英文作者：LI Xiong-yan1 ; XUE Su-duo2(1.The Key Lab of Urban Security and Disaster Engineering ; Ministry of Education ; Beijing University of Technology ; Beijing 100124 ; China ; 2.Beijing Key Lab of Earthquake Engineering and Structural Retrofit ; Beijing University of Technology ; Beijing 100124 ; China)
中文关键词：支座 ; 隔震 ; 摩擦滑移 ; 弹簧 ; 复位刚度
英文关键词：bearing ; seismic isolation frictional sliding springs ; restoring stiffness(责任编辑张士瑛)
出版日期：2011-11-15
机构：北京工业大学城市与工程安全减灾教育部重点实验室;北京工业大学工程抗震与结构诊治北京市重点实验室;
年：2011
期：11
出版单位：北京工业大学学报

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.

引文

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