Experimental investigation and analysis of pure bending plastic hinge zone in hybrid beams reinforced with high reinforcement ratio under static loads

Dang, Hiep Vu; Phan, Duy Nguyen

doi:10.1080/19648189.2021.1934553

Cited by 7 publications

(4 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Technology development provides various materials for reinforcing and strengthening concrete structures [ 1 , 2 ]. Fiber-reinforced polymers (FRPs) are a promising steel alternative because they are high-strength, lightweight, immune to corrosion, and electromagnetically transparent [ 3 , 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Quantifying the Residual Stiffness of Concrete Beams with Polymeric Reinforcement under Repeated Loads

et al. 2023

View full text Add to dashboard Cite

Current technology development ensures a variety of advanced materials and options for reinforcing concrete structures. However, the absence of a uniform testing methodology complicates the quantification and comparative analysis of the mechanical performance of the composite systems. The repeated mechanical loads further complicate the issue. This research extends the recently developed residual stiffness assessment concept to the repeated loading case. It provides an engineer with a simplified testing layout and analytical model to quantify the residual flexural stiffness of standardized laboratory specimens subjected to repeated cycling loads. This model explicitly relates the particular moment and curvature values, requiring neither iterative calculations nor the load history. Thus, this feature allows residual stiffness quantification under repeated loading conditions, including complete reloading of the beam samples imitating the structural strengthening procedure; the proposed technique is equally efficient in quantifying the residual stiffness of the beam samples with any combinations of fiber-reinforced polymer (FRP) reinforcements, i.e., embedded bars, near-surface-mounted strips, and externally bonded sheets. This study employs 12 flexural elements with various reinforcement and loading layouts to illustrate the proposed methodology’s efficiency in quantifying the residual strength of the tension concrete, which estimates the efficiency of the reinforcement system. The explicit quantifying of the residual resistance of the FRP reinforcement systems under repeated load cycles describes the essential novelty of this work.

show abstract

Section: Introductionmentioning

confidence: 99%

Quantifying the Residual Stiffness of Concrete Beams with Polymeric Reinforcement under Repeated Loads

et al. 2023

View full text Add to dashboard Cite

show abstract

“…References 8 , 24 – 27 define the cases when the bond parameters were among the research subjects. For instance, Chen et al 26 focused the research on the FRP laminate bonding properties.…”

Section: Introductionmentioning

confidence: 99%

“…Four remaining works take into account the FRP-concrete bond performance of the hybrid structural systems, which describe the research object of this study. Dang and Phan 8 and Cai et al 25 investigated the FRP bar bonding performance in concrete. Robinson and Melby 24 studied the mechanical resistance of the concrete-filled GFRP tube, and Muc et al 27 simulated the composite deck slab.…”

Section: Introductionmentioning

confidence: 99%

Developing a hybrid FRP-concrete composite beam

Garnevičius

Gribniak

2022

Sci Rep

View full text Add to dashboard Cite

Current materials engineering trends put forward the development of efficient structural solutions. The steel replacement with fiber-reinforced polymers (FRP) exemplifies the key to the corrosion problem. However, the relatively low deformation modulus of typical FRP materials raises the deformations of the structural components. Together with the self-weight reduction increasing the kinematic displacements, the latter issue makes developing hybrid structures comprising compression-resistant concrete and high-performance in tension FRP profiles important. Although such hybrid systems are applicable for bridge engineering, the uncertainty of the inter-component bonding properties complicates developing these innovative structures, including the design models. The typical solution focuses on the local bond improvement, e.g., employing FRP profile perforation and mechanical anchorage systems. However, this study introduces an alternative solution, using the stress-ribbon bridge structural system for creating the hybrid beam prototype, which combines the synthetic fiber-reinforced concrete slab and pultruded FRP profile fixed on the supports. This work exemplifies the structural development concept when the finite element (FE) modeling outcome defines the target reference of the design procedure. Thus, on the one hand, this innovative structure simplifies the corresponding numerical (FE) model, which assumes the perfect bond between the components of the hybrid beam system. On the other hand, the solution to the support problem (resulting from a low resistance of pultruded FRP profiles to transverse loads) improves the structural performance of the bridge prototype, doubling the structure’s flexural stiffness and load-bearing capacity regarding the weak concrete supports’ system. The bending tests proved the adequacy of this solution in describing the design reference for further development of the proposed structural concept.

show abstract

“…Polyester, specifically with controlled styrene content, is preferred due to its low shrinkage and ease of release from the die. In contrast, epoxy resins may require release agents or viscosity modifiers (Dang, Phan, 2022;Obaidat, 2022;Yun et al, 2023;Teng et al, 2001;Abbood et al, 2021). Adapted by the Author from Zoghi (2013) Surfacing material…”

Section: Manufacturing Methods Of Fiber-reinforced Polymersmentioning

confidence: 99%

Flexural stiffness analysis of concrete elements with composite reinforcement under repeated load and elevated temperature

Sultani

View full text Add to dashboard Cite

Vadovasdr. Viktor GRIBNIAK (Vilniaus Gedimino technikos universitetas, medžiagų inžinerija -T 008). Vilniaus Gedimino technikos universiteto Medžiagų inžinerijos mokslo krypties disertacijos gynimo taryba: Pirmininkė dr. Agnė KAIRYTĖ (Vilniaus Gedimino technikos universitetas, Medžiagų inžinerija -T 008). Nariai: dr. Valentin ANTONOVIČ (Vilniaus Gedimino technikos universitetas, Medžiagų inžinerija -T 008), prof. dr. Darius BAČINSKAS (Vilniaus Gedimino technikos universitetas, Statybos inžinerija -T 002), prof. dr. Yuri RIBAKOV (Arielio universitetas, Izraelis, Medžiagų inžinerija -T 008), prof. dr. Žymantas RUDŽIONIS (Kauno technologijos universitetas, Statybos inžinerija -T 002). Disertacija bus ginama viešame Medžiagų inžinerijos mokslo krypties disertacijos gynimo tarybos posėdyje 2024 m. gegužės 16 d. 10 val. Vilniaus Gedimino technikos universiteto SRA-I posėdžių salėje.

show abstract

Experimental investigation and analysis of pure bending plastic hinge zone in hybrid beams reinforced with high reinforcement ratio under static loads

Cited by 7 publications

References 42 publications

Quantifying the Residual Stiffness of Concrete Beams with Polymeric Reinforcement under Repeated Loads

Quantifying the Residual Stiffness of Concrete Beams with Polymeric Reinforcement under Repeated Loads

Developing a hybrid FRP-concrete composite beam

Flexural stiffness analysis of concrete elements with composite reinforcement under repeated load and elevated temperature

Contact Info

Product

Resources

About