Computational and Simulation Analysis of Pull-Out Fiber Reinforced Concrete

Zhao, Xiaohu; He, Xuhui; Yan, Song; Anh, Nguyen Phan

doi:10.1155/2014/576052

Cited by 6 publications

(3 citation statements)

References 30 publications

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“…Wu et al [29], Kusumawardaningsih and Hadi [30], Ozbakkaloglu and Lim [31], and Pham et al [32] proposed a design method to evaluate the axial load strength of rectangular and square reinforced compression members confined with CFRP/GFRP jackets. Recently few researchers have performed a research on analytical and numerical modelling of FRP strengthened RC structures subjected to various loading [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Compressive Behaviour of RC Column with Fibre Reinforced Concrete Confined by CFRP Strips

Vasumathi¹,

Rajkumar

Prabhu

2014

Advances in Materials Science and Engineering

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The structural application of synthetic fibre reinforced concrete (FRC) has become widespread in the construction industry in order to satisfy the requirement of the earthquake resistant structures. Research conducted so far are focused on the structural behaviour of RC column externally confined with FRP composites, while studies are needed to address the behaviour of FRP strengthened RC column fabricated using fibre reinforced concrete. With the intention that the experimental investigation was carried out to evaluate the feasibility use of CFRP composite strips in strengthening of RC column made with fibre reinforced concrete. Circular synthetic Polypropylene fibre was used in the rate of 0.50% in the volume of concrete. CFRP strips having a width of 50 mm were used to confine the column and the experimental parameters were effective spacing between the CFRP strips (20 mm and 30 mm) and the number of CFRP layers (one, two and three). The externally bonded CFRP strips counteract the lateral expansion of the concrete significantly by providing restraining effect and thus effect enhanced the stiffness of the column. The column strengthened with CFRP strips showed a maximum of 198.87% and 91.75% enhancement in axial deformation control and ultimate strength, respectively, compared to that of reference column. From the test results obtained, it is suggested that CFRP strips with the spacing of 20 mm and 30 mm can be used in strengthening of RC column made with FRC; however the column confined with 30 mm spacing provides an economical advantage compared to that of 20 mm spacing.

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Section: Introductionmentioning

confidence: 99%

Compressive Behaviour of RC Column with Fibre Reinforced Concrete Confined by CFRP Strips

Vasumathi¹,

Rajkumar

Prabhu

2014

Advances in Materials Science and Engineering

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“…The rigidity of the 2 Advances in Materials Science and Engineering girder, especially its web rigidity, is lower than that in other traditional structures [2,[9][10][11][12]. Thus, the structure design parameters are more sensitive to cracks, in particular, during posttensioning construction.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Parametric Analysis of Cracks in Polypropylene Fiber Concrete U-Shaped Girder

Xü

Deng

et al. 2017

Advances in Materials Science and Engineering

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The U-shaped girder is a type of open thin-walled structure, which is used in urban rail transit engineering. Although it employs polypropylene fiber concrete to avoid cracks, the girder is still easier to crack than other traditional structures owing to its special open thin-walled cross section. In this study, a cracking accident of a U-shaped girder, which happened during the prestressed steel tensioning, was studied by field investigation and mechanical analysis through the finite element (FE) method. An outline of the cracks was presented. The nonlinear material properties of the polypropylene fiber concrete and steel were discussed and used in the finite element model. The effects of the main design parameters, such as the flange slab thickness, anchorage position, and prestressed steel layout, were evaluated based on the results of the FE analysis. The results indicate that the extremely low rigidity of the web and oversize of the web longitudinal prestressed steels are the main reasons for the cracks. The risk of cracks can be reduced by increasing the thickness of the flange slab and changing the anchorage position and prestressed steel layout. Some suggestions are provided for avoiding cracks based on the results of the research.

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“…The former considered the effect of the hook obtained from experimental results with a straight fibre pull-pout and the latter uses experimental and virtual work principles to describe the load-slip relation. By means of finite element simulations, several research have approached using interfacial friction laws as the basis for the solutions to the equilibrium and compatibility equations (Breitenbücher, et al, 2014;Zhao, et al, 2014;Zhan, et al, 2014) or assessed the size effect of in the fibre pull-out test (Yang, et al, 2003). In any event, modelling the pull-out response of inclined fibre seems to remain a topic open to discussion (Laranjeira, et al, 2010a).…”

Section: Steel Interface Densificationmentioning

confidence: 99%

Polyolefin fibre-reinforced concrete : from material behaviour to numerical and design considerations

Alberti¹

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Quiero expresar mi más sincero agradecimiento a Jaime Gálvez, director de esta Tesis, por haberme permitido dar mis primeros pasos en la investigación científica. Además, por la dedicación, apoyo y comprensión y por haberme transmitido los mejores valores académicos durante el proceso de realización de este trabajo. Quiero agradecer igualmente a Alejandro Enfedaque, también director de esta Tesis, su esfuerzo, paciencia y ayuda en muchas horas de laboratorio y discusiones, y haberme acompañado en todo mi proceso de aprendizaje con cercanía y empatía. A ambos, mi más sincero agradecimiento por su labor docente y por haberme hecho sentir parte de su equipo desde el primer día.Deseo extender mi agradecimiento a Sika, cuya financiación ha hecho posible el desarrollo de esta Tesis. De forma personal, a Alberto Rey, por sus continuas aportaciones y su apoyo durante todo este periodo. A Ángel González Lucas, por el interés y apoyo constante a la investigación. También a Ramón Martínez y Ramiro García, así como a Carsten Rieger y Gustav Bracher por su acogida en Suiza en mi visita a Hagerbach.

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Computational and Simulation Analysis of Pull-Out Fiber Reinforced Concrete

Cited by 6 publications

References 30 publications

Compressive Behaviour of RC Column with Fibre Reinforced Concrete Confined by CFRP Strips

Compressive Behaviour of RC Column with Fibre Reinforced Concrete Confined by CFRP Strips

Mechanical and Parametric Analysis of Cracks in Polypropylene Fiber Concrete U-Shaped Girder

Polyolefin fibre-reinforced concrete : from material behaviour to numerical and design considerations

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