Strength and deflection behavior of spun concrete poles with CFRP reinforcement

Shalaby, Ashraf M.; Fouad, Fouad H.; Albanese, Ronald

doi:10.15554/pcij.03012011.55.77

Cited by 11 publications

(4 citation statements)

References 5 publications

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“…Moreover, stronger steel reinforcement combined with composite non-metallic reinforcement (e.g., carbon and glass fiber), was also used for making hybrid (tubular steel and spun concrete) members (poles), etc. [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Reinforced Spun Concrete Poles—Case Study of Using Chemical Admixtures

2020

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The current research paper is focused on the experimental investigation of features of chemical admixtures (superplasticizers C-3, ‘Dofen’ and formaldehyde resin ACF-3M) utilizing in reinforced spun concrete structures. For the sake of comparison, the results of studying the effects of chemical admixtures on physical and mechanical properties on vibrated and spun concrete are provided. As a separate part of spun concrete products, the supporting poles of overhead power lines are introduced. The results obtained indicate, that the positive effect of chemical admixtures for spun and vibrated concrete is most pronounced at an early age of concrete. The effective amount of chemical admixtures for spun concrete is 0.15% of cement mass when formaldehyde resin ACF-3M and 1% of cement mass when superplasticizers C-3 and ‘Dofen’ are used. Moreover, the brief review about the reinforced spun concrete members is provided.

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Section: Introductionmentioning

confidence: 99%

Reinforced Spun Concrete Poles—Case Study of Using Chemical Admixtures

2020

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“…As the described poles are a product that is appropriate for industrial production and as it can be competitive on the market (especially when taking into account its longer service life and lower weight, which is significant in relation to transport costs), it is not surprising that it has been the subject of extensive testing campaigns. The strength, deflection and resistance to bending values of centrifugally cast poles, destined for use in power transmission, and prestressed by CFRP material, are experimentally and numerically analysed in [16]. It was established that, when properly reinforced, these elements have satisfactory bending properties, including ductility.…”

Section: Figure 4 Damage To Reinforced-concrete Powerline Pole -Typical Cracks In Aggressive Environmentmentioning

confidence: 99%

Centrifugally-cast concrete poles with non-metallic reinforcement

2021

JCE

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The article describes the testing of poles for electric power transmission lines, which are made of centrifugally-cast concrete and ultra-high strength concrete, and which are prestressed with Carbon Fibre Reinforced Polymer tendons (CFRP). The presented results of pole ultimate load testing suggest the potential for usage of this construction product, particularly in aggressive environments with high probability of steel corrosion. Part of the tested poles had shear reinforcement in the form of confined Glass Fibre Reinforced Polymer (GFRP) grid, while one share of samples had no shear reinforcement, but the concrete matrix was strengthened with synthetic macro fibres. A review is given on similar product testing, calculation methods, and guidance is provided for further research.

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“…Also, they are used in the construction of large tanks (bunkers), wind turbine masts, and chimneys. The durability and use of centrifuged structures are further increasing with the introduction of new materials such as non-metallic reinforcements [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Behavioral Analysis of a Mast with a Combined Prestressed Stayed Columns System and Core of a Spun Concrete Circular Cross-Section

Indriūnas,

Kliukas,

Juozapaitis

2023

Buildings

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Widely used telecommunication structures are usually of the tower or mast type. For medium and tall telecommunications structures, tower-type constructions become less efficient compared to mast-type structures. The goal of our article is to discover a new, efficient telecommunication structure. For relatively low heights, tower systems can be designed with a continuous cross-section, in most cases using reinforced concrete elements. Among them, efficient spun concrete elements, whose load-bearing capacity is higher than that of ordinary solid reinforced concrete elements due to the technological features of their production, should be mentioned. A significantly higher efficiency of masts can be achieved by employing various combined structural systems that utilize a prestressed stayed columns system. It should be noted that there are not many solutions for prestressed stayed columns systems with spun concrete core elements and that research into their design and behavior is not yet sufficiently developed. The behavior of this combined structure is analyzed with regard to the geometric and physical nonlinearity of its elements. The strength and stability of the spun concrete core of such a combined system are evaluated. The impact of the prestressing of this prestressed stayed column structure on the internal forces and displacements of the reinforced concrete core is analyzed. The performance of the new structure compared to conventional tower and mast structures is presented. In the article, it has been determined that by applying the prestressed stayed columns system to telecommunication structures, the innovative structural system becomes 2.5 times more efficient than the classic mast and 5 times more efficient than the typical tower system on the mass criterion.

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Strength and deflection behavior of spun concrete poles with CFRP reinforcement

Cited by 11 publications

References 5 publications

Reinforced Spun Concrete Poles—Case Study of Using Chemical Admixtures

Reinforced Spun Concrete Poles—Case Study of Using Chemical Admixtures

Centrifugally-cast concrete poles with non-metallic reinforcement

Behavioral Analysis of a Mast with a Combined Prestressed Stayed Columns System and Core of a Spun Concrete Circular Cross-Section

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