滑移隔震结构的半主动控制

为了克服消极的滑移隔震在强震时由于滑移位移过大而在震后产生残余位移的缺点,基于MariaQingFeng提出的一种摩擦力可控滑移隔震结构的思想,把上部结构简化为弹性体,使用Bang Bang控制、改进的Bang Bang控制算法控制摩擦力,研究了可控滑移隔震结构的半主动控制方法.对计算实例的分析表明,通过半主动控制的滑移隔震结构不但具有较好的隔震效果,且能有效地减小基底的最大滑移量及残余位移.

Semi-active control of sliding vibration isolation structure

In order to conquer disadvantage of negative sliding vibration isolation, the sliding displacement when strong vibration is too great to the remains displacement is come back after strong vibration, based on the viewpoint of sliding isolation structure that the friction force is controllable proposed by Maria Qing Feng, considering the superstructure as elastomer, the semi-active control of sliding vibration isolation structure is studied by using Bang-Bang control method and improved Bang-Bang control method. Numerical results show that the sliding vibration isolation structure using semi-active control not only has good isolation effect, but also has lesser maximum slippage and residual base displacement.