干字型输电塔线体系风致响应研究  

Research on Wind-induced Response of Dry Type Power Transmission Tower-line System

作　　者：谢文平 陈波[2] 林介东 聂铭 

机构地区：[1]广东电网有限责任公司电力科学研究院,广东广州510080 [2]道路桥梁与结构工程湖北省重点实验室(武汉理工大学),湖北武汉430070

出　　处：《广东电力》2015年第5期86-89,共4页Guangdong Electric Power

基　　金：南方电网公司科技项目(K-GD2013-0783);霍英东基金(131072);湖北省杰出青年基金(2014CFA026)

摘　　要：研究了干字型输电塔线体系的风致响应问题。首先基于杆系有限元理论建立了输电塔线体系的三维有限元模型,该模型考虑了输电塔和输电导线的动力耦合效应。基于随机振动理论模拟了输电塔线体系的多维脉动风荷载,并形成总风荷载时程。分析了输电塔线体系在强风作用下的风致响应,为输电杆塔的抗风防灾提供参考。This paper studies wind-induced response of dry type power transmission tower-line.Firstly,based on tower system finite element theory,three dimension（3D）finite element model of power transmission tower-line system was established which considered dynamic coupling effect of power transmission tower and power transmission conductor.Multi-dimensioned pulsation wind load of power transmission tower-line was simulated on the basis of random vibration theory and total wind load time-histories were formed.Wind-induced response under strong wind effect of the power transmission tower-line sys-tem was analyzed which provided reference for wind resistance and natural calamities prevention.

关 键 词：输电杆塔 风荷载 塔线体系 风致响应 

分 类 号：TU312[建筑科学—结构工程]