Development of GFRP Guyed Communication Towers

Alshurafa, Sami; Alnaafa, Mohammed A.; Polyzois, Dimos

doi:10.1007/978-3-030-88166-5_164

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…The ultimate load-carrying capacity and flexural stiffness were enhanced while a significant amount of weight was conserved with this design. Table 6 shows the FRP poles' results different cross-sectionals [39,40]. Amir developed a finite element model and validated it in a companion study in 2008, which was used to analyze partial concrete filling of cantilever-type FRP tubular poles.…”

Section: Modeling Of Frp Poles 61 Simple Linear Static Modelsmentioning

confidence: 99%

FRP Poles: A State-of-the-Art-Review of Manufacturing, Testing, and Modeling

et al. 2022

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Fiber-reinforced polymers poles were on the increase because they were lightweight, have high strength-to-weight ratios, provide corrosion resistance, can be customized to meet strength and deflection requirements, and have a low life-cycle cost of construction and maintenance. This research presents a comprehensive review of all significant research and existing case studies to review the present knowledge concerning fiber-reinforced polymers poles. The main summary covers 70 works focusing on fiber poles to summarize recent activities on selected relevant topics and highlight possible future implementations. In this context, this study discusses fiber-reinforced polymers poles in six aspects: (i) introduction; (ii) methodology; (iii) Materials properties of FRP poles; (iv) manufacturing techniques of FRP poles; (v) testing of FRP poles (static and dynamic flexure test as cantilever beam); (vi) modeling of FRP poles. Therefore, this critical review will demonstrate an overview of FRP Poles manufacturing techniques (Pultrusion, filament winding, centrifugal process, and hand lay-up) and which Pultrusion technique is the best suited for FRP Poles. Static modeling was the most used of other techniques.

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Section: Modeling Of Frp Poles 61 Simple Linear Static Modelsmentioning

confidence: 99%

FRP Poles: A State-of-the-Art-Review of Manufacturing, Testing, and Modeling

et al. 2022

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“…FRP has several advantages over materials like steel and aluminum, making it a good choice for transmission and distribution poles, towers, H-frames, and light poles [1]. GFRP has several advantages over conventional steel for meteorological towers, including a high strength-to-weight ratio and corrosion resistance [2]. Although FRP composites have been used for more than 50 years in various applications, other materials, including steel, wood, and aluminum, have been used for considerably longer [3].…”

Section: Introductionmentioning

confidence: 99%

Measuring and Rigidity Moduli of GFRP Experimentally

Awad,

El-Fiky,

Hegazy

et al. 2023

Civ Eng J

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Although GFRP poles are widely accepted today due to their low cost and weight and high electrical and corrosion resistance, they suffer large deformations due to the low elastic and rigidity moduli (E & G) values of the GFRP. Accordingly, it is essential to accurately measure these values to estimate the actual deformation of the pole. This study presented a procedure to measure (E & G) values using three different tests on three sample sizes: full, scale pole, conic sample, and ad coupon sample, instead of using the manufacturer values as usual. This study is also concerned with the shear modulus value and when it can be neglected as usual in other traditional materials. The GRG optimization technique was used to analyze the results and determine the optimum values for (E & G) considering the results of the three tests. The results showed that the values of (E & G) are greatly affected by the sample’s size and shape, the slenderness ratio of the sample (L/r), and the shear deformation contribution. The critical slenderness ratio (L/r), corresponding to a shear deformation contribution of 10%, was determined for each test. This value is recommended as the upper boundary for any test that measures the (E & G) values. Testing several samples with different (L/r) values is also recommended to enhance accuracy. This study was concerned with determining the optimum values of elastic and rigidity moduli for GRFP poles compared to the manufacturer’s conservative values. The results indicated that the shear modulus can be neglected and the importance of the scale effect on the results of flexure and shear modulus. Doi: 10.28991/CEJ-2023-09-08-07 Full Text: PDF

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