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尽管已有的研究证明传统的变刚度控制系统可以有效地抑制结构在地震激励下动力响应,但是现有的变刚度装置仅能在很小的范围内改变结构的周期,而且也不利于抑制结构的加速度反应。为了克服这一局限性,本文提出了一种新型的半主动变刚度(ISAVS)控制系统,兼具基础隔震和传统变刚度控制的优点。基于作者提出的离复位控制策略,本文针对ISAVS系统进行了地震作用下的数值模拟,验证了它的可行性和有效性。
Although previous studies have demonstrated that the traditional variable stiffness control system can effectively suppress the dynamic response of the structure under seismic excitation, the existing variable stiffness device can only change the cycle of the structure in a small range, and it is also unfavorable to suppress the structure. Acceleration response. In order to overcome this limitation, this paper presents a new type of semi-active variable stiffness (ISAVS) control system, which combines the advantages of base isolation and traditional variable stiffness control. Based on the author’s departure-reset control strategy, the paper simulates the ISAVS system under the action of earthquake and verifies its feasibility and effectiveness.