Obtaining a permanent repair by using GFRP in steel plates reformed by heat-treatment

Aydın, Emine; Aktaş, Muharrem

doi:10.1016/j.tws.2015.03.027

Cited by 10 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…GFRP laminates bonded to the compression flanges of steel beams may also help to increase local and global buckling resistances for the systems , Correia et al 2011. Similar effectiveness was also reported in other studies of steel members strengthened with GFRP laminates (e.g., Aguilera and Fam 2013, Aydin and Aktas 2015, Raj et al 2016, Hosseini et al 2021, Lesani et al 2022.…”

Section: Introductionsupporting

confidence: 73%

“…Latin American Journal of Solids and Structures, 2023, 20(4), e487 3/28 1.3 Typical numerical and analytical studies for the analyses of GFRP-strengthened steel beams There have been many experiment studies conducted for strengthening of steel members by using GFRP laminates (e.g., El , Aguilera and Fam 2013, Aydin and Aktas 2015, Parvathi et al 2018, Correia et al 2011). However, the numerical and analytical studies for such structures have not been widely and fully studied.…”

Section: Typical Theories Developed For the Stress And Deformation Pr...mentioning

confidence: 99%

See 1 more Smart Citation

Innovated shear deformable FE formulations for the analyses of steel beams strengthened with orthotropic GFRP laminates

Bui-Tien

Pham

2023

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

The present study develops an innovated shear deformable theory and four finite element formulations based on a total potential energy variational principle for the analysis of steel beams strengthened with GFRP laminates. The present theory captures orthotropic properties of the GFRP laminae, GFRP lamina stacking sequences, partial interaction between the steel beam and the GFRP laminates, and shear deformations. Three examples are conducted for the validation of the present theory. Through comparisons, the system responses predicted by the present solutions are excellently validated against those of recent experimental studies and three-dimensional finite element analyses. Key results obtained in the present study include: (i) the responses of GFRP-strengthened beams are strongly influenced by GFRP fiber angle arrangements. (ii) The strengthening is the most effective for steel beams strengthened with a GFRP laminate stacked with fiber angles of 0 degree. Based on two parametric studies, the effects of the orthotropic GFRP lamina properties and GFRP laminate thicknesses on the system deflections are also investigated.

show abstract

Section: Introductionsupporting

confidence: 73%

Section: Typical Theories Developed For the Stress And Deformation Pr...mentioning

confidence: 99%

Innovated shear deformable FE formulations for the analyses of steel beams strengthened with orthotropic GFRP laminates

Bui-Tien

Pham

2023

Lat. Am. j. solids struct.

View full text Add to dashboard Cite

show abstract

“…For instance, Kaman et al [28] applied the neural network to predict the torsional performance of steel beams strengthened by bonding different types of FRPs, emphasizing the reduction of required experimental work with this method. Furthermore, experimental and parametric studies have shown that a permanent repair can be achieved by bonding GFRP plates to steel elements [29,30]. Ghafoori and Motavalli [31] investigated the elastic behavior of steel beams reinforced with FRP reinforcement under torsion, resulting in a significant increase in the stiffness of the composite beam.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Steel I-Beams Strengthened Using CFRP and BFRP Sheets under Torsion

Aydın

2023

Advances in Civil Engineering

Self Cite

View full text Add to dashboard Cite

Torsional demand acting on beams can significantly effect structural behavior and cause high-local stresses. The torsional resistance of beams can be potentially increased by using fiber-reinforced polymer (FRP) sheets. In this study, basalt (BFRP) and carbon (CFRP) fabrics with different layouts are used to strength the steel I-beams, and the enhancement in the torsional strength is investigated experimentally and numerically. First, 12 specimens are reinforced using BFRP and CFRP fabrics bonded to the web of steel I-beams in three different layouts to carry out the experimental study. In total, 14 specimens are tested under torsion including two reference beams. Second, a numerical model is developed to capture the torsional behavior of web-reinforced steel beams. After the numerical model is verified satisfactorily, a parametric study is conducted to evaluate the effect of FRP strengthening on steel beams for flange-only and full reinforcement alternatives. In the experiments, fully web-bonded FRP strengthening configuration achieved 18% and 14% increase in torsional capacities for BFRP and CFRP sheets compared to reference, respectively. In last, it is discovered by the parametric study that the full reinforcement using FRP on the web and flanges can achieve up to 43% increase.

show abstract

“…In studies on the reinforcement of beams with FRP, some examine the effect of FRP plates on the fatigue behavior of steel beams and the propagation of fatigue cracks [23][24][25][26][27][28][29]. In addition, some researchers investigated the contribution of FRP to the buckling behavior of beams with experimental and numerical studies [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Bending Behaviors of GFRP-Strengthened Steel RHS Profiles with Experimental and Numerical Models

2023

View full text Add to dashboard Cite

The contribution of GFRP (glass fiber reinforced polymer) fabric to the bending behavior of steel RHS (rectangular hollow section) beams was investigated by experimental and numerical studies. In the first part of the study, small-scale RHS profiles were strengthened with GFRP fabrics in ten different configurations in the experimental study. The bending behavior of the profiles was determined by three-point bending tests, and the best strengthening configuration was decided. The numerical models were verified with the experimental results. In the second part, real-size RHS beams were strengthened with the optimum strengthening configuration. In the results of the study, it was determined that the U-shaped strengthening provided the maximum contribution to the RHS beams bending behavior. The minimum GFRP size to be used in strengthening is important, as an insufficient GFRP length leads to GFRP failure, and the number of layers should be increased for more load capacity. A total of 25% of the net beam span was determined to be the minimum GRFP length. In full-size beams, a double-layer GFRP increased the maximum load-bearing capacity by 7%. Formulas were obtained to determine the contribution of single and double-layered U-shaped GFRP to the shape factors of the RHS. With the formulations, the plastic moment capacity can be determined.

show abstract

Obtaining a permanent repair by using GFRP in steel plates reformed by heat-treatment

Cited by 10 publications

References 9 publications

Innovated shear deformable FE formulations for the analyses of steel beams strengthened with orthotropic GFRP laminates

Innovated shear deformable FE formulations for the analyses of steel beams strengthened with orthotropic GFRP laminates

Investigation of Steel I-Beams Strengthened Using CFRP and BFRP Sheets under Torsion

Investigation of Bending Behaviors of GFRP-Strengthened Steel RHS Profiles with Experimental and Numerical Models

Contact Info

Product

Resources

About