摩擦摆隔震结构振动台模型设计方法研究

Model Design Method for Shaking Table Test on Isolated Structures Using Friction Pendulum Bearings

随着隔震技术的应用发展,摩擦摆支座作为一种新颖的隔震支座,已逐步在国内外工程中使用。摩擦摆隔震结构的振动台试验模型设计方法具有特殊性,对其特殊性的把握将直接影响振动台试验的结果。以西昌(9度区)某基础隔震高层框架-核心筒结构为原型结构,研究了摩擦摆隔震结构的振动台试验模型设计的核心方法,包括模型整体相似关系、隔震支座数量等效、隔震层相似关系、隔震层等效以及模型支座参数确定,以期为今后摩擦摆隔震结构振动台试验模型设计提供参考。

With the development of isolation technology in engineering application,as a novel isolation bearing,the friction pendulum bearing has been gradually used in both domestic and foreign projects. There are some special features in model design method of the shaking table test on isolated structures using friction pendulum bearings,which will have great effects on the results of shaking table test. Based on a high-rise isolated structure in Xichang（ seismic intensity 9）,the core method of model design of the shaking table test on isolated structures using friction pendulum bearings was studied,including the similitude rules for the general test model,the number of isolation bearings,and the similitude for the isolation layer,and theisolated story,and the determination of model bearings＇ parameters. This paper is aimed to be used for the future shaking table test model design of friction pendulum bearing isolated structures.