A comprehensive intelligent prediction method of transmission line project cost based on clustering improvement

Li, H.; Wu, Kaigui; Liang, Renyu; Lu, Feng; Liu, Shuzhong; Liu, Z.; Wang, Y.

doi:10.1049/icp.2020.0225

Cited by 2 publications

(1 citation statement)

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“…Under long-term alternating loads, tower materials or fasteners are prone to fatigue failure. Transmission line tower is a typical open-air steel structure tower, and transmission line project is an important part of power system construction [1]. In China, tower collapse accidents caused by strong wind, downburst and other extreme weather occur frequently, which is the main reason for the damage of transmission lines in inland areas.…”

Section: Introductionmentioning

confidence: 99%

Research on Dynamic Characteristics Detection Method of Tall Power Transmission Tower

Zhang,

Jian,

2023

HSET

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In addition to the gravity of the structure itself and the supported object, the open-air high-rise supported steel structure tower mainly bears dynamic loads. Take the transmission line tower as an example, such as wind load, conductor galloping, tower vibration and sudden unbalanced tension caused by line breaking. It is necessary to study the dynamic characteristic parameters to know the structural resistance to dynamic load. Therefore, from the perspective of dynamic safety evaluation, this paper designed the acquisition method of dynamic characteristic parameters and established a reliable finite element modal analysis model of transmission tower. Finally, the dynamic characteristic parameters such as natural frequency, vibration mode and amplitude of transmission line steel tower were obtained. It was found that the inclined material of the transmission tower might be unstable when the high-order natural frequency resonance occurred, which had important practical significance for structure design optimization and safety evaluation.

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Section: Introductionmentioning

confidence: 99%