[1]ZHAI Bin,LI Suchao,ZHANG Lijuan,et al.Full-scale Test and Bearing Capacity Improvement for Conductor HangingJoints of the UHV Steel Pipe Transmission Tower[J].Journal of Seismological Research,2024,47(01):1-9.[doi:10.20015/j.cnki.ISSN1000-0666.2024.0002 ]
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Full-scale Test and Bearing Capacity Improvement for Conductor HangingJoints of the UHV Steel Pipe Transmission Tower

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 47 Number of periods: 2024 01 Page number: 1-9 Column: Public date: 2023-11-20
Title:
Full-scale Test and Bearing Capacity Improvement for Conductor HangingJoints of the UHV Steel Pipe Transmission Tower
Author(s):
ZHAI Bin1; LI Suchao2; 3; ZHANG Lijuan1; XU Zaigen1; WANG Zhiyuan2; MAO Chenxi4
(1.Shandong Electric Power Engineering Consulting Institute Co.,Ltd.,Jinan 250100,Shandong,China)(2.Ministry-of-Education Key Laboratory of Structural Dynamic Behavior and Control,Harbin Institute of Technology,Harbin 150090,Heilongjiang,China)(3.Department of Civil Engineering,Harbin Institute of Technology in Weihai,Weihai 264209,Shandong,China)(4.Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,Heilongjiang,China)
Keywords:
ultra-high voltage transmission tower;  hanging joint;  bearing capacity;  full-scale experiment;  FEM simulation;  force-transferring nut
CLC:
TU311.4; TU398
DOI:
10.20015/j.cnki.ISSN1000-0666.2024.0002
Abstract:
In view of the safety of the conductor hanging joint of UHV steel pipe transmission tower subjected to extreme loading,this paper focuses on the measurements of the structural behavior improvement through modifying the cooperative work of two conductor hanging plates on both sides of the hanging joint.Two types of hanging joints are compared and studied regarding the bearing capacity and corresponding failure modes.Through the full-scale hanging joint tests and the Finite Element Analysis(FEA),the stress distribution and the bearing capacity of the hanging joint are compared under the condition of unilateral plate's load-bearing and bilateral plates' load-bearing.In addition,the reasonable initial gap between the force-transferring nut and the hanging plate is analyzed.Results show that the reasonable initial gap between the force-transferring nut and the hanging plate is 2-4 mm,and bending failure will occur on both the bilateral plates.The stress distribution is more reasonable and the yield-bearing capacity of the hanging joint can also be increased twice as much as the design bearing capacity,which is of great significance to improving the safety of transmission tower and reduce the economic investment.
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