Collapsed performance otherness analysis for kinds transmission tower-line systems under wind-induced load

2018 International Conference of Green Buildings and Environmental Management

土木建筑工程;生态环境科学

Zhang, Zhuoqun^1,2 ; Hongnan, Li^1 ; Kangjie, Shao^3

Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian

116024, China^1

State Nuclear Electric Power Planning Design and Research Institute CO., LTD, Beijing

100095, China^2

China Academy of Building Research, CABR Technology CO., LTD, Beijing

100013, China^3

关键词: Double circuit;    Material characteristics;    Progressive collapse;    Progressive collapse analysis;    Structural topologies;    Three dimensional finite element model;    Transmission tower-line system;    Wind induced loads;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/186/4/012073/pdf
DOI  :  10.1088/1755-1315/186/4/012073

来源: IOP

【 摘 要 】

In this study, three-dimensional finite element models of transmission tower-line systems were established, analyzed and simulated wind-induced progressive collapse by birth-to-death element technique in ABAQUS/Explicit. This research provided clear step-by-step descriptions of various procedures for progressive collapse analysis of different transmission tower-line systems by wind load. The numerical simulation results demonstrated that wind-induced collapsed performance of transmission tower-line system could be simulated clearly. For the Claw-type and Stem-type double circuit transmission tower-line systems, the progressive collapse speed and path were different under the same wind loading and related to the structural topology form and material characteristics closely. Therefore, the numerical simulation of progressive collapse process was considered as a significant and necessary project.