Structural Analysis of Lattice Steel Transmission Towers: A Review

Chen, Lu; Ou, Yongsheng

doi:10.4172/2472-0437.1000114

Cited by 3 publications

(3 citation statements)

References 95 publications

(136 reference statements)

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“…Some characteristic stages can be distinguished on the load-displacement curves during the tensile process (cf. [40][41][42]). Four stages were indicated in [40,41].…”

Section: Tensile Tests and Failure Modesmentioning

confidence: 99%

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Monitoring Steel Bolted Joints during a Monotonic Tensile Test Using Linear and Nonlinear Lamb Wave Methods: A Feasibility Study

Rucka

2018

Metals

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The structural integrity of steel bolted joints may be compromised due to excessive loading. Therefore, condition assessment and the detection of potential defects before they cause a failure have become a major issue. The paper is focused on the condition monitoring of a bolted lap joint subjected to progressive degradation in a tensile test. The inspection used Lamb waves propagated through the overlap area. Wave propagation signals were registered automatically by means of piezoelectric transducers. Two damage indices were defined based on linear and nonlinear features of Lamb waves. The use of a network of piezoelectric transducers and the analysis of multiple signals instead of single ones was proved to effectively monitor the state of the bolted joint. The obtained results showed that the method enabled to detect selected stages of the degradation process and to characterize the reduction of the contact area between the plates in the overlap area.

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“…Some characteristic stages can be distinguished on the load-displacement curves during the tensile process (cf. [40][41][42]). Four stages were indicated in [40,41].…”

Section: Tensile Tests and Failure Modesmentioning

confidence: 99%

“…[40][41][42]). Four stages were indicated in [40,41]. At the first phase of loading, the tested connection behaved as a slip-resistant (friction-type) joint.…”

Section: Tensile Tests and Failure Modesmentioning

confidence: 99%

Monitoring Steel Bolted Joints during a Monotonic Tensile Test Using Linear and Nonlinear Lamb Wave Methods: A Feasibility Study

Rucka

2018

Metals

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“…In the building of transmission line towers, gusset plates are common materials that are often used for connecting the structural angle members. In the 1970s, studies on concentrically loaded GFRP bolted connections began [18][19][20][21]. Experimental investigations on single-bolted, single/double plate-to-plate connections for static tensile loads have been carried out by MOTTRAM and TURVEY (2003), COOPER and TURVEY (1995), [22][23].…”

Section: Introductionmentioning

confidence: 99%

Crushing performance of pultruded GFRP angle section with various connections and joints on lattice towers

Ravikumar¹,

Palanichamy²,

Singaram³

et al. 2023

Matéria (Rio J.)

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The significant features of the GFRP angle make it one of the modern construction members for the present lattice-type Transmission Line Towers (TLT) made out of mild steel. The GFRP structural angle members with gusset plate connections for net-crushing strength are investigated in this study, with an emphasis on connections to transmission line towers. Forty-two specimens of single-lap, butt joints with bolted connections are considered in this study. The gusset plate and edge distance have different widths. The joint is subjected to a compression load before failure modes and the associated loads were noticed. An experimental investigation on the crushing behaviour of GFRP angle sections to determine the crushing performance against the standard crushing force of different connections such as bolted, adhesive, and hybrid (bolted + adhesive) with various joints (butt and lap) has been carried out and are presented. Additionally, the impact of plate edge distance and width on connection effectiveness is investigated. The innovation of the work is in the evaluation of the crushing value for bolted GFRP structural angle members of 2, 3, and 4 nos with gusset plate connections that have been used to predict the compressive strength.

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Evaluation of Design and Simulation of Creep Test Rig for Full‐Scale Crossarm Structure

Asyraf

Ishak

Sapuan

et al. 2020

Advances in Civil Engineering

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A simulated model was developed in order to design and simulate the mechanical properties of a cantilever beam creep testing rig for a full-scale size crossarm in transmission towers. Currently, the Malaysian power grid system is implementing several materials, such as Chengal wood, polymeric composite, and galvanised steel, as crossarm structures. However, there is a lack of study regarding the long-term mechanical behaviour of heavy structures in the literature. Hence, this article explains the design development of creep test rig for a full-scale crossarm structure using CATIA and mechanical simulation (deformation and safety factors) of the product via ANSYS. The test rig will be used to predict the creep life of the cantilever beam structure. In this study, a tall and large base area structure was designed and replicated from an actual tower to elevate the crossarm above the ground level. In order to select the best performance model, a baseline conceptual test rig was generated in CAD modelling, and the finite element analysis was carried out by using a static structural analysis in ANSYS. Four different bracing configurations were incorporated in the baseline model, and the modified structures were then analysed. The results show that the hybrid bracing configuration has enhanced the mechanical properties and safety factors in the baseline model.

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Structural Analysis of Lattice Steel Transmission Towers: A Review

Cited by 3 publications

References 95 publications

Monitoring Steel Bolted Joints during a Monotonic Tensile Test Using Linear and Nonlinear Lamb Wave Methods: A Feasibility Study

Monitoring Steel Bolted Joints during a Monotonic Tensile Test Using Linear and Nonlinear Lamb Wave Methods: A Feasibility Study

Crushing performance of pultruded GFRP angle section with various connections and joints on lattice towers

Evaluation of Design and Simulation of Creep Test Rig for Full‐Scale Crossarm Structure

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