高压输电塔的摩擦耗能减震控制  

Seismic Mitigation of Transmission Tower by Using Passive Friction Dampers

作　　者：陈波[1] 郑瑾[2] 王建平[3] 

机构地区：[1]武汉理工大学道路桥梁与结构工程湖北省重点实验室,武汉430070 [2]武汉理工大学设计研究院,武汉430070 [3]贵州民族学院建工学院,贵阳550000

出　　处：《武汉理工大学学报》2009年第1期78-82,共5页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50038010)

摘　　要：采用被动摩擦阻尼器研究了输电塔在强烈地震作用下的减震控制问题。采用多自由度模型建立了输电导线的动力分析模型。针对输电塔线体系的平面内振动和平面外振动分别建立了安装有被动摩擦阻尼器的塔线耦联体系的动力分析模型和动力分析方法。结果表明,摩擦阻尼器是一种形式简单、具有较好耗能能力的控制装置,可以有效地减小高压输电塔的地震反应。The vibration mitigation of transmission tower subjected to seismic excitations is actively carried out in this research. The multi-degree-of-freedom （MDOF） mode/of transmission line is also constructed. The dynamic model and analytical method of transmission tower-line system incorporated with passive friction dampers are developed for both in-plane/out-of-plane vibrations. The analytical results indicate that the passive friction damper has simple configuration as well as satisfactory energydissipating capacity and thus can be utilized to effectively suppress the seismic responses of transmission tower-line system.

关 键 词：输电塔线体系 摩擦阻尼器 被动控制 参数研究 

分 类 号：O346.5[理学—固体力学]