Structural performances of pultruded GFRP emergency structures – Part 1: Experimental characterization of materials and substructure

Cavaleri, Liborio; Paola, Mario Di; Ferrotto, Marco Filippo; Scalici, T.; Valenza, A.

doi:10.1016/j.compstruct.2019.02.004

Cited by 12 publications

(4 citation statements)

References 23 publications

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“…Therefore, only the most remarkable works are listed here. General stress–strain analysis of the pultruded beams; 64,142,314,315,326,346,353,356–363 straightening and restoration of existing beams; 246,364–366 buckling instability; 247,310,342,367–379 thermal loading; 380,381 and web-flange junction strength 379 are just primary examples of what composite scholars are working on in regard to the flexural behavior of full-scale pultruded structures. Other types of structural elements were also widely studied: application of composite bars and strips for reinforcement; 382–389 space frame structures; 390–394 hybrid beams; 79,395–398 sandwich structures and bridge deck systems.…”

Section: Mechanical Properties Of Pultruded Materialsmentioning

confidence: 99%

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Pultruded materials and structures: A review

Vedernikov

Safonov

Tucci

et al. 2020

Journal of Composite Materials

150

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Currently, the application of pultruded profiles is increasing owing to their advantages, such as light weight, high strength, improved durability, corrosion resistance, ease of transportation, speed of assembly, and nonmagnetic/nonconductive characteristics. This review analyzes the main application fields of elements produced by pultrusion manufacturing processes: bridges and bridge decks, cooling towers, building elements and complete building systems, marine construction, transportation, and energy systems. Analysis of the scientific literature in relation to the mechanical behavior of pultruded elements is presented as well. Finally, this review outlines the future study possibilities, giving the researchers and practitioners the directions for deeper investigation of specific features and exploration of new ones concerning the mentioned aspects of pultruded fiber-reinforced polymer composites.

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Section: Mechanical Properties Of Pultruded Materialsmentioning

confidence: 99%

“…For better design, further research of full-scale structures is needed. 363,457 Besides, there is also a gap in the creep characterization of hybrid FRP structures. For instance, very small number of papers are available regarding the GFRP-concrete hybrid structures.…”

Section: Creepmentioning

confidence: 99%

Pultruded materials and structures: A review

Vedernikov

Safonov

Tucci

et al. 2020

Journal of Composite Materials

150

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“…Fibre reinforced plastic (FRP) is a kind of preferred and ideal material used in aircrafts, 1,2 bridges, 3,4 emergency buildings 5,6 and many other lightweight structures, due to its superior performance such as high strength, light weight, and good corrosion resistance. The wide application of FRP profiles manufactured by the pultrusion process in various engineering structures is attributable to their better unidirectional mechanical properties, stable performance, and lower price.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the axial compression behaviour of perforated glass fibre reinforced plastic medium-length tubes

Feng

2023

Journal of Composite Materials

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This paper aims to investigate the axial compression behaviour of perforated glass fibre reinforced plastic (GFRP) circular tubes. A total of 12 GFRP medium-length tubes with and without circular holes were tested under axial compression. The influence of hole size and hole quantity on the failure mode and mechanical behaviour of perforated GFRP tubes were carefully evaluated. The overall buckling failure and material strength failure, mainly determined by the hole size, were observed in the axial compression tests. The critical load and axial stiffness of the perforated tubes decreased further with the increase of hole sizes and quantities, compared to those of the intact GFRP tubes. To reveal the damage mechanism of perforated GFRP tubes, three-dimensional digital image correlation (3D-DIC) technique was used to analyse the evolution of full-field strain around the hole. It was demonstrated that the damage mechanisms of the overall buckling failure and material strength failure were respectively compression-shear destruction and tension-shear destruction in the high strain concentration regions around the hole. Finally, design-oriented equations were proposed to predict the critical load and axial stiffness of perforated GFRP tubes under axial compression, and 95% confidence interval was used for interval estimation. The proposed equations were in good agreement with the test results. In addition, the prediction results of axial stiffness are generally more accurate than that of critical load.

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“…Previous studies on pultruded fibre-reinforced polymer (FRP) beams have also supported FRP materials for a wide range of building structures, such as bridge construction, lightweight structures, structural connectors, concrete reinforcements, emergency structures, and deck structures [7,[26][27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

A Novel Z Profile of Pultruded Glass-Fibre-Reinforced Polymer Beams for Purlins

et al. 2022

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Purlins made from galvanised steel in fertiliser warehouses have often been considered less efficient, necessitating a new purlin made using corrosion-resistant material to increase building efficiency. This study was an attempt to design a nine-metre purlin from glass-fibre-reinforced polymer (GFRP) composite material for a new fertiliser warehouse in Bontang-East Kalimantan, Indonesia. The purlin design selected in this study was the Z profile of pultruded beams from GFRP composite material that met the criteria of an efficient purlin, such as corrosion resistance, compact stacking, and ability to withstand technical loads. In particular, the Z profile becomes compact when stacked, and the GFRP material used is corrosion-resistant yet affordable. The primary materials for GFRP composites consist of long yarn glass fibre bundles for reinforcement and unsaturated polyester resin (UPR) for the matrix. Material strength modelling was based on analytical and finite element approaches. The analysis shows that the most considerable normal stress of “64.41 MPa” occurred at the two fixed end supports, while the most significant deflection of “45.9 mm” occurred at the mid-span of the purlin structure. The purlin structure was considered safe, as the strength and deflection were below the threshold. Thus, the Z profile of the pultruded purlin beams built using the GFRP composite material meets the technical criteria.

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Structural performances of pultruded GFRP emergency structures – Part 1: Experimental characterization of materials and substructure

Cited by 12 publications

References 23 publications

Pultruded materials and structures: A review

Pultruded materials and structures: A review

Experimental investigation on the axial compression behaviour of perforated glass fibre reinforced plastic medium-length tubes

A Novel Z Profile of Pultruded Glass-Fibre-Reinforced Polymer Beams for Purlins

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