Analysis of the Quasi-Static Buffeting Responses of Transmission Lines to Moving Downburst  

作　　者：Qigang Sun Jian Wu Dahai Wang Yue Xiang Haitao Liu Xiaobin Sun 

机构地区：[1]Economic and Technology Research Institute of State Grid Shandong Electric Power Company,Jinan,250000,China [2]Wuhan University of Technology,Wuhan,430070,China [3]State Grid Shandong Electric Power Company,Jinan,250000,China

出　　处：《Computer Modeling in Engineering & Sciences》2020年第7期287-302,共16页工程与科学中的计算机建模（英文）

基　　金：supported in part by Science and Technology Foundation of State Grid Shandong Electric Power Company(Grant No.52062518000U);National Natural Science Foundation of China(Grant Nos.51720105005 and 51478373);by Science and Technology Foundation of State Grid Shandong Electric Power Company(Grant No.52062518000U);National Natural Science Foundation of China(Grant Nos.51720105005 and 51478373)are greatly acknowledged.

摘　　要：Downburst event is identified as a major cause to failure of transmission lines in non-coastal regions.In this paper,a novel nonlinear analytical frame for quasi-static buffeting responses of hinged and multi-span insulator-line systems are derived based on the theory of cable structure.The closed-form solutions are presented and applied to predict nonlinear response including displacements and other reactions of the system subjected to a moving downburst wind in a case study.Accuracy and efficiency of the derived analytical frame are validated via comparisons with results from finite element method.

关 键 词：DOWNBURST WIND transmission line buffeting responses cable QUASISTATIC 

分 类 号：U44[建筑科学—桥梁与隧道工程]