基于性能的相邻结构间Maxwell阻尼器优化布置研究

Performance-based optimal arrangement of Maxwell dampers between two adjacent structures

对连接Maxwell模型的两相邻钢筋混凝土框架结构进行了基于性能的阻尼器优化布置研究。以使两相邻结构总超越概率最小为优化目标,对确定阻尼器数目下的相邻结构进行了阻尼器优化布置位置的研究,得出了相邻结构间Maxwell阻尼器的优化位置的一般布置规律。通过连接不同优化布置位置的Maxwell阻尼器的相邻结构地震易损性分析,得出了相邻结构间连接Maxwell阻尼器的优化数目。所得相邻结构间阻尼器的优化布置,可以使相邻结构在不同性能目标的地震作用下均能得到较优的控制效果,为实际工程的应用作出了有益探讨。

Performance-based optimal arrangement of Maxwell dampers between two adjacent reinforced concrete frame structures was studied. The minimum total exceeding probability of two adjacent structures was taken as the optimization objective. The optimal arranging positions of Maxwell dampers between two adjacent structures under the conditions of some certain numbers of dampers were firstly studied. The general arranging laws for optimal positions of Maxwell dampers between two adjacent structures were obtained. Through the seismic fragility analyses of two adjacent structures connected using Maxwell dampers with different optimal arranging positions, the optimal numbers of Maxwell dampers used to connect two adjacent structures were determined. The results showed that the proposed optimal arrangements of Maxwell dampers between two adjacent structures has better control effects for two adjacent structures under earthquakes with different performance targets; the results provide a helpful reference for further engineering applications. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.