TY - EJOU AU - Sun, Qigang AU - Wu, Jian AU - Wang, Dahai AU - Xiang, Yue AU - Liu, Haitao AU - Sun, Xiaobin TI - Analysis of the Quasi-Static Buffeting Responses of Transmission Lines to Moving Downburst T2 - Computer Modeling in Engineering \& Sciences PY - 2020 VL - 124 IS - 1 SN - 1526-1506 AB - 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. KW - Downburst; wind; transmission line; buffeting responses; cable; quasistatic DO - 10.32604/cmes.2020.09118