邻体结构摩擦阻尼控制体系地震反应分析  

Analysis of seismic responses of adjacent-structure-system connected with friction dampers

作　　者：王元生[1] 吴乃森[1] 任绍章[1] 何涛 

机构地区：[1]西北工业大学力学与土木建筑学院,陕西西安710072 [2]河南省漯河市交通局,河南漯河462400

出　　处：《河北科技大学学报》2009年第2期135-140,151,共7页Journal of Hebei University of Science and Technology

摘　　要：对邻体结构摩擦阻尼控制体系的地震反应进行了仿真计算和参数分析。针对摩擦阻尼器提出了理想弹塑性和Bouc-Wen滞回模型2种分析模型,计算结果证明2种模型吻合良好。选取子结构顶层最大位移和加速度以及体系总耗能和阻尼器耗能比为控制效果指标,分别对单自由度和多自由度邻体结构进行仿真计算和摩擦阻尼器参数分析,结果表明,摩擦阻尼器参数取值对结构减震效果影响显著,通过合理设计,摩擦阻尼器能有效控制各子结构的地震反应,取得显著的减震效果。In the paper, the seismic responses of adjacent-structure-system connected with friction damper were studied and the parameters influence was analyzed. Two numerical models, ideal bilinear model and Bouc-Wen hysteretic model of friction dampers are proposed for adjacent structure. It＇s found that the proposed two numerical models are accorded with each other perfectly. The maximal displacement and acceleration of top floor of the sub-structure, the total energy dissipation of system and the ratio of damper energy dissipation wre proposed as targets of control effect. Then the seismic responses of adjacent single-degree-of-freedom structures and multi-degree-of-freedom structures connected with friction dampers wre studied and the parameter influence was analyzed. The results indicate that the value of friction damper parameter will affect the seismic sup-pressive effectiveness evidently and the seismic responses of sub-structures can be controlled availably to acquire notable seismic suppressive effectiveness when the system is designed becomingly.

关 键 词：邻体结构 摩擦阻尼器 地震反应 参数分析 

分 类 号：TU352.1[建筑科学—结构工程]