Failure Analysis of Transmission Tower in Full-Scale Tests
Auteur(s): |
Xiuyun Gao
Rong Yi Lingquan Zhang Xiao Jiang Jiaxiang Li |
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Médium: | article de revue |
Langue(s): | anglais |
Publié dans: | Buildings, 11 avril 2022, n. 4, v. 12 |
Page(s): | 389 |
DOI: | 10.3390/buildings12040389 |
Abstrait: |
With the rapid development of Ultra-High Voltage (UHV) transmission lines, it is necessary to study the performance of UHV transmission towers. First, we performed full-scale tests on a transmission tower under seven loading patterns. Then, the test results were compared with the calculation results of the Chinese tower design software Transmission Tower Analysis Program (TTA), and the failure location of the tower and the stress characteristics of the key parts were studied. Finally, we discuss the influence of bolt slippage and a new joint on the tower performance, and propose some design proposals for the current Chinese code, based on the test results. The results show that a bolt slip will significantly increase the displacement of the transmission tower, but the residual displacement can correct it. The new joint design has good mechanical performance. The bracing member at the bottom of the tower leg is located at the connection of the tower leg and the foundation, and there is a significant sudden change in stiffness, which we recommend designing according to 4% of the axial force of the main members. |
Copyright: | © 2022 by the authors; licensee MDPI, Basel, Switzerland. |
License: | Cette oeuvre a été publiée sous la license Creative Commons Attribution 4.0 (CC-BY 4.0). Il est autorisé de partager et adapter l'oeuvre tant que l'auteur est crédité et la license est indiquée (avec le lien ci-dessus). Vous devez aussi indiquer si des changements on été fait vis-à-vis de l'original. |
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10664355 - Publié(e) le:
09.05.2022 - Modifié(e) le:
01.06.2022