覆冰荷载作用下腐蚀地线的动力特性研究  

Investigation on Dynamic Properties of Corrosive Ground Wires Subjected to Icing Loads

作　　者：符晶华[1] 陈波[2] FU Jing-hua;CHEN Bo(National Engineering Research Center of Fiber Optic Sensing Technology and Networks,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Roadway Bridge and Structural Engineering,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉理工大学光纤传感技术与网络国家工程研究中心,武汉430070 [2]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

出　　处：《武汉理工大学学报》2022年第7期45-50,共6页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(51978549)。

摘　　要：考虑架空地线腐蚀损伤影响并建立其覆冰荷载模型,随后建立了腐蚀架空地线的力学模型和非线性响应分析方法,建立了覆冰腐蚀地线的动力特性分析计算方法。以我国南方某架空地线为实际工程背景,研究了覆冰腐蚀架空地线的动力特性并进行了参数研究。结果表明:覆冰荷载和腐蚀率均对架空地线的动力特性具有较为显著的影响。此外,架空地线的档距等参数也对腐蚀地线的动力特性具有较为显著的影响。The icing load model of ground wires was established by considering corrosive damages of ground wires.The mechanical model and nonlinear analytical method of corrosive ground wires were developed.Then,the analytical approach for the dynamic properties of corrosive ground wires subjected to icing loads was proposed.A real ground wires in southern China was taken as an actual example to examine the dynamic properties of corrosive ground wires under icing loads.A parametric investigation was also carried out to study the effects of various wire parameters.The made observations indicate that the influences of icing loads and corrosive rate on the dynamic properties of the corrosive ground wire are obvious.In addition,the span of corrosive ground wires has an important influence on the structural dynamic properties.

关 键 词：腐蚀损伤 架空地线 覆冰荷载 动力特性 

分 类 号：O346.5[理学—固体力学]