不规则框架结构粘滞流体阻尼器优化布置研究

Research on Optimization Arrangement of Fluid Viscous Damper in Irregular Frame Structure

本文尝试在不规则框架结构中应用阻尼器,并通过ETABS结构分析软件建立三维有限元模型,采用权系数布置法和逐层逼近法对粘滞流体阻尼器进行优化布置,并提出结构整体反应量的两个评价指标,对各层均匀布置、权系数优化布置和逐层逼近优化布置的结构进行计算分析。粘滞流体阻尼器优化布置结果表明:对于结构地震反应的控制,逐层逼近法略优于权系数布置法,且两种方法均优于各层均布法,但权系数布置法较逐层逼近法计算简单,耗时短且控制效果接近,所以对实际工程来说,权系数布置法更为实用。

In the paper,hybrid energy dissipation devices are installed in a irregular frame structure,a three-dimensional finite element model of the structure is established by ETABS,and two optimized methods are proposed to arrange the better layout of fluid viscous damper. The first is the methods of the weight coefficients optimization and the second is the hierarchy search method. Then,two correlated indexes are proposed for evaluating the whole structure. The optimization layout of the fluid viscous dampers indicate that：for the seismic responses of the irregular frame structure,the hierarchy search method is better than the method of the weight coefficients optimization; the latter will take less time,its mange-effect is more corrective and simple,so the latter one is more practical for the engineering.