%0 Journal Article
%T 黏滞阻尼器连接的两相同毗邻结构的动态响应分析<br>Dynamic Responses of Two Identical Adjacent StructuresConnected by Viscous Damper
%A 吴亚丽
%A 饶兰
%A 彭松
%J 地震工程学报
%D 2018
%R 10.3969/j.issn.1000-0844.2018.05.946
%X 为了研究由黏滞阻尼器连接的两相同结构建筑在底部加速度激励下的动态特性，以谐波激励模拟地面加速度，导出耦合系统的运动微分方程，并求解了相对位移和绝对加速度。利用参数法分析激励频率、质量比和刚度比对耦合建筑响应特性的影响。推导出阻尼系统最佳参数和相应响应的解析表达式。通过研究发现，黏滞阻尼器能够有效控制同结构相邻建筑的动态响应。对于给定的结构和激励，阻尼器的阻尼系数存在最优值能够使谐波激励下的地震动峰值响应最小。耦合结构的阻尼比对最佳阻尼器阻尼没有明显影响，因此所提出的阻尼结构的解析表达式可用于耦合结构。<br>In this study, we investigated the dynamic behavior of two adjacent buildings with identical structures connected by viscous damper underground acceleration excitation. Based on the harmonic excitation, we modeled the ground acceleration, derived the differential equations of motion for the coupled system, and solved for the relative displacement and absolute acceleration responses. In this paper, we discuss the influences of the parameters of excitation frequency, mass ratio, and stiffness ratio on the response characteristics of the coupled buildings. The study results indicate that viscous dampers can effectively control the dynamic responses of adjacent identical buildings. For a given coupling structure and excitation, an optimal damping coefficient can minimize the peak ground motion response to harmonic excitation. We also found the damping ratio of the coupling structure to have no significant effect on the optimal damper parameters. As such, the analytical expression of the undamped structure proposed in this paper can also be used for a coupled structure.
%K 相邻结构
%K 动态响应
%K 最优阻尼器参数
%K 最优响应
%K 黏滞阻尼器
%K 谐波激励&lt
%K br&gt
%K adjacent structures
%K dynamic response
%K optimal damper parameters
%K optimal response
%K viscous damper
%K harmonic excitation
%U http://dzgcxb.ijournals.cn/ch/reader/view_abstract.aspx?file_no=20180512&flag=1