Structural optimization of lattice steel transmission towers

Couceiro, Iván; París, José; Martı́nez, Servet; Colominas, Ignasi; Navarrina, F.; Casteleiro, Manuel

doi:10.1016/j.engstruct.2016.03.005

Cited by 27 publications

(12 citation statements)

References 25 publications

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“…Te optimization design process of the Y-type insulator string is shown in Figure 13. In order to reduce the cross arm length of the insulator string, the current project needs to carry out structural optimization design [43][44][45]. Combined with the comparative analysis in Section 4.1, structural optimization design is carried out for the Y-type insulator string.…”

Section: Te Structural Optimization Analysis Of the Y-type Insulator ...mentioning

confidence: 99%

Nonlinear Buckling Analysis and Optimization Design of the Y‐Type Composite Insulator String

Bao¹,

Xia

Chai³

et al. 2022

Advances in Civil Engineering

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Under the action of extreme wind load, the overhead transmission line will lead to the fracture of the traditional V-type insulator string, which greatly affects the safety of the power system. Compared with the V-type insulator string, the Y-type insulator string has better stability under the wind load. Therefore, the overhead lines in the mountainous areas of Anhui Province are taken as the research object, considering the combined effect of wind load and conductor dead weight, and through theoretical derivation, the calculation formula of insulator string wind deflection angle is obtained. Using numerical simulation software, the nonlinear mechanical analysis of Y-type insulator strings is conducted, and under the action of different wind speeds, the windage yaw angle and unloading angle of the Y-type insulator string are obtained. Compared with the calculation results of the V-type insulator string, the stability of the Y-type insulator string in the structure is better than that of the V-type insulator string, and the Y-type insulator string can make full use of the distance between layers and the gap margin of the tower head, reduce the length of the cross arm, and reduce the weight of the tower, which has obvious advantages. Combined with the results of theoretical analysis and numerical simulation, the optimal design method of the Y-type insulator string is given. Under the condition of ensuring the safety and stability of insulators, the distance of the cross arm is shortened as much as possible and the weight of the transmission line tower is reduced. The research results will provide a theoretical reference for engineering design and improvement.

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Section: Te Structural Optimization Analysis Of the Y-type Insulator ...mentioning

confidence: 99%

Nonlinear Buckling Analysis and Optimization Design of the Y‐Type Composite Insulator String

Bao¹,

Xia

Chai³

et al. 2022

Advances in Civil Engineering

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“…Optimization is done to get an optimum design of the transmission tower. There is a study in [6] shows that an optimization method performed on the layout and sizing of a truss transmission tower. The performance of optimizing is based on the algorithm that then been improved with first order sensitivity analysis.…”

Section: Study Of Optimizationmentioning

confidence: 99%

Analysis and Optimization of 275 kV Transmission Tower by Using Linear Static Analysis and P-Delta Analysis.

Kamarudin

Usman²,

Omar³

et al. 2018

IJET

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The increasing global population was demanded for more consumption of electricity. In Malaysia, it was reported that 17,790 megawatts (MW) was consumed in October 2017 due to high demand. The peak reading recorded is 0.011% increase compared to demand on April 2016 (17,788 MW). Following this, more transmission tower lines need to be developed to generate more electricity. Land acquisition is the main issue for constructing the new transmission tower because it requires a large area to set it up. The idea of optimization on the existing transmission tower helps in reducing cost for constructing the new structure. The aim of this study is to develop an optimal design of the transmission tower. A 275 kV transmission tower model is used in this study for analyzing and optimizing by using linear static and p-delta analysis. This optimization method is done by reducing tower members as well as increasing size of member’s element. A design calculation for modification and arrangement of the transmission tower members is referred to manual guidelines of EN1993-3-1 and ASCE 10-97. Two alternatives are being prepared to produce an optimal design and result shows that a reduction percentage in term of reduced number of bar members can be saved up to 34 %.

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“…As far as telecommunication towers are concerned, optimization methods [8,9] have been developed mainly in scientific research and consider various aspects of optimization, i.e. topologies [10], comparative criteria [11], geometrically nonlinear analyses [12], or aspects related to loadcarrying capacity of individual nodes of lattice structures [13,14].…”

Section: Introductionmentioning

confidence: 99%

Using full‐scale tests results for designing of steel telecommunication towers

Szafran¹

2021

ce papers

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The main goal of this paper is to provide recommendations for designing state‐of‐the‐art and lightweight steel lattice telecommunication towers which offer the highest possible load‐carrying capacity. The design rules presented in the paper are based on experimental results obtained for two independent tower structures. Full‐scale facilities, namely 42‐m‐high towers were tested. Stresses in compressed legs of lower segments of the towers, displacements of their tops, and, notably, failure mechanisms are analyzed. Technical solutions including additional equipment, such as service platforms and cable and access ladders, are also considered. Means of reinforcing tower structures with a focus on modifying buckling strength of legs and diagonal bracings are also discussed and justified.

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Structural optimization of lattice steel transmission towers

Cited by 27 publications

References 25 publications

Nonlinear Buckling Analysis and Optimization Design of the Y‐Type Composite Insulator String

Nonlinear Buckling Analysis and Optimization Design of the Y‐Type Composite Insulator String

Analysis and Optimization of 275 kV Transmission Tower by Using Linear Static Analysis and P-Delta Analysis.

Using full‐scale tests results for designing of steel telecommunication towers

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