An experimental study on flexural behavior for a FRP composite girder

Ahn, Namshik; Lee, Jae Hong; Lee, Kangsu; Jang, Hwa Sup

doi:10.1016/j.conbuildmat.2013.08.088

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…Pultruded fibre-reinforced polymer (PFRP) profiles have flourished in the last few decades and have become a reliable construction element, especially after the research and development efforts that made pultrusion a more robust and economic manufacturing process [ 1 , 2 ]. These profiles developed from being strengthening and rehabilitating elements to being essential structural members because of their excellent mechanical properties, light weight, and superior corrosion resistance [ 3 , 4 ]. They are currently used as beams [ 5 ], decks and panels [ 6 , 7 , 8 , 9 ], and trusses [ 10 , 11 , 12 ] in buildings and bridges, frames in marine structures [ 13 , 14 , 15 ], lighting poles and cross-arms in infrastructure [ 16 , 17 ], pipes in the oil industry [ 18 , 19 ], spar caps for wind turbines and cable trays and grating walkways in solar structures in the energy sector [ 20 , 21 ], reinforcements for concrete [ 22 , 23 ], piles foundations [ 24 , 25 ], and sleepers in railways [ 26 , 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

Review on Local Buckling of Hollow Box FRP Profiles in Civil Structural Applications

et al. 2021

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Hollow box pultruded fibre-reinforced polymers (PFRP) profiles are increasingly used as structural elements in many structural applications due to their cost-effective manufacturing process, excellent mechanical properties-to-weight ratios, and superior corrosion resistance. Despite the extensive usage of PFRP profiles, there is still a lack of knowledge in the design for manufacturing against local buckling on the structural level. In this review, the local buckling of open-section (I, C, Z, L, T shapes) and closed-section (box) FRP structural shapes was systematically compared. The local buckling is influenced by the unique stresses distribution of each section of the profile shapes. This article reviews the related design parameters to identify the research gaps in order to expand the current design standards and manuals of hollow box PFRP profiles and to broaden their applications in civil structures. Unlike open-section profiles, it was found that local buckling can be avoided for box profiles if the geometric parameters are optimised. The identified research gaps include the effect of the corner (flange-web junction) radius on the local buckling of hollow box PFRP profiles and the interactions between the layup properties, the flange-web slenderness, and the corner geometry (inner and outer corner radii). More research is still needed to address the critical design parameters of layup and geometry controlling the local buckling of pulwound box FRP profiles and quantify their relative contribution and interactions. Considering these interactions can facilitate economic structural designs and guidelines for these profiles, eliminate any conservative assumptions, and update the current design charts and standards.

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Section: Introductionmentioning

confidence: 99%

Review on Local Buckling of Hollow Box FRP Profiles in Civil Structural Applications

et al. 2021

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“…FRPs are used as a substitution for conventional materials with the primary aim to overcome the corrosion issues due to the harsh marine conditions (harbors, ocean and floating constructions, energy systems, container wharfs, tidal power structure, handrails, and gratings 107 ). Composites' lightweight and high strength characteristics; 108–110 improved durability; 111,112 insensitivity to the degradation processes occurring within marine environments; 113,114 lower expenses for shipping, installation, and maintenance processes; 109 resistance to corrosion; 108,109,115 and prolonged lifespan render them a cost-effective and environmentally friendly solution. Moreover, the nonsparking nature of FRP composites avoids sparks generation, which should be prevented in certain offshore applications due to the flammability of the related products.…”

Section: Pultrusion Applicationsmentioning

confidence: 99%

Pultruded materials and structures: A review

Vedernikov

Safonov

Tucci

et al. 2020

Journal of Composite Materials

156

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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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“…Fibre reinforced polymer(FRP) composites have found increased use in waterfront and marine structures due to their advantageous properties, such as light weight, high tensile strength and lower rates of aqueous corrosion. [1][2][3] Among the applications, pultruded FRP sheet piles have been successfully used to construct retaining walls for waterfront/marine structures. Considering the life-cycle cost, the most widely used FRP composites in sheet pile structures are glass fiber reinforced polymer (GFRP) composites.…”

Section: Introductionmentioning

confidence: 99%

Analytical and experimental study on flexural behavior of pultruded fibre reinforced polymer sheet piles

Wang

Liu

Liang

et al. 2016

Journal of Composite Materials

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This paper presents the experimental and the analytical results of pultruded glass fiber reinforced polymer sheet pile panels subjected to flexural loading. Full scale four-point flexural tests were conducted up to failure on five sets of joined pairs of glass fiber reinforced polymer Z-pile panels by placing them flat-wise. The influences of transverse and longitudinal fiber volume fraction, span-to-depth ratio and steel plate on the carrying capacity and deformability were discussed. The test results displayed that increasing the fibre transverse and longitudinal volume fraction was helpful for tearing control at the flange-web junction on the compressive side, thus obviously enhancing the load capacity and the flexural rigidity of fiber reinforced polymer sheet pile panels. The additional steel plate improved the rigidity of fiber reinforced polymer sheet pile panels, but the load capacity increased insignificantly due to the debonding of steel and glass fiber reinforced polymer interface. The span-to-depth ratio has little influence on the ultimate load due to the local failure but large deformation occurred in the long-span specimen. Based on classical laminate theory for anisotropic materials, a new equation was proposed to calculate the flexural and shear rigidities of glass fiber reinforced polymer sheet pile panels with corrugated section, in addition to applying classical Timoshenko beam theory. The theoretical results agree well with those obtained from the experiments.

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An experimental study on flexural behavior for a FRP composite girder

Cited by 5 publications

References 3 publications

Review on Local Buckling of Hollow Box FRP Profiles in Civil Structural Applications

Review on Local Buckling of Hollow Box FRP Profiles in Civil Structural Applications

Pultruded materials and structures: A review

Analytical and experimental study on flexural behavior of pultruded fibre reinforced polymer sheet piles

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