Shear Strengthening of RC Deep Beams with Sprayed Fiber-reinforced Polymer Composites (SFRP): Part 2 Finite Element Analysis

Hussain, Qudeer; Pimanmas, Amorn

doi:10.1590/1679-78251426

Cited by 13 publications

(3 citation statements)

References 46 publications

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“…This paper presents the finite element analysis conducted on SFRP strengthened Reinforced Concrete (RC) deep beams is done. The analysis variables included SFRP material (glass and carbon), SFRP thickness (3 mm and 5 mm), SFRP configuration and strength of concrete [8].…”

Section: Qudeer Hussain Et Al (2017) Conducted a Study On Shear Smentioning

confidence: 99%

Evaluation of Performance of Shear Deficient Curved Beams Strengthened by Different Methods

Prakash¹

2020

IJRASET

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The study on experimental investigation and nonlinear finite element simulations of shear deficient and Glass Fiber Reinforced Plastic (GFRP) strengthened reinforced concrete beams are done. The responses, in terms of load-deflection behaviour, failure loads and crack patterns, obtained from numerical simulations are validated with that of the experimental investigations. The validated numerical models are then used for studying the efficacy and effectiveness of various strengthening schemes using epoxy impregnated GFRP fabric where the number of layers, orientation and distribution of fibers are considered as parameters. In this study investigations are done in curved beams. Modelling and analysis of curved beams is done in ANSYS 16.1 software.

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Section: Qudeer Hussain Et Al (2017) Conducted a Study On Shear Smentioning

confidence: 99%

Evaluation of Performance of Shear Deficient Curved Beams Strengthened by Different Methods

Prakash¹

2020

IJRASET

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“…Further, both the steel and concrete jacketing alter the stiffness of the member with steel jackets being further prone to corrosion [ 15 , 16 ]. Therefore, in recent years, the use of Fiber-Reinforced Polymer (FRP) composites has gained much popularity because they do not significantly increase the weight of the structures and are easy to apply, which greatly improve the bearing capacities of the component members and enable the use of structures during strengthening [ 17 , 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Flexural Behavior of Natural Hybrid FRP-Strengthened RC Beams and Strain Measurements Using BOTDA

et al. 2021

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Experimental and finite element analysis results of reinforced concrete beams under monotonic loading were presented in this study. In the experimental program, one beam was tested in an as-built condition. The other two beams were strengthened using natural hybrid FRP layers in different configurations. The natural hybrid FRP composite was developed by using natural jute FRP and basalt FRP. One of the most appealing advantages of natural fiber is its beneficial impact on the environment, which is necessary for the sustainability recognition as an alternative to synthetic FRP. The hybrid FRP was applied to the bottom concrete surface in one beam, while a U-shaped strengthening pattern was adopted for the other beam. The flexural behavior of each beam was assessed through strain measurements. Each beam was incorporated with conventional strain gages, as well as the Brillouin Optical Time Domain Analysis (BOTDA) technique. BOTDA has its exclusive advantages due to its simple system architecture, easy implementation, measurement speed, and cross-sensitivity. The experimental results revealed that the beam strengthened with the U-shaped hybrid FRP composite pattern had a better flexural response than the other counterpart beams did both in terms of peak loads and maximum bottom longitudinal steel bar strains. Beams B-01 and B-02 exhibited 20.5% and 28.4% higher energy dissipation capacities than the control beam did, respectively. The ultimate failure of the control beam was mainly due to the flexural cracks at very low loads, whereas the ultimate failure mode of FRP composite-strengthened beams was due to the rupture of the hybrid FRP composite. Further, strain measurements using BOTDA exhibited similar patterns as conventional strain gage measurements did. However, it was concluded that BOTDA measurements were substantially influenced by the bottom flexural cracks, ultimately resulting in shorter strain records than those of conventional strain gages. Nonlinear structural analysis of the beams was performed using the computer program ATENA. The analytical results for the control beam specimen showed a close match with the corresponding experimental results mainly in terms of maximum deflection. However, the analytical peak load was slightly higher than the corresponding experimental value.

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“…In contrast to the unidirectional FRPs, recently a new method, i.e. sprayed glass fiber reinforced polymer composites, has been studied by many researchers [32][33][34][35][36]. The sprayed FRPs are also found very effective to enhance the strength and ductility of the strengthened structures.…”

Section: Introductionmentioning

confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Rodsin,

Hussain,

Joyklad

et al. 2020

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Several recent earthquakes have indicated that the design and construction of bridges based on former seismic design provisions are susceptible to fatal collapse triggered by the failure of reinforced concrete columns. This paper incorporates an experimental investigation into the seismic response of nonductile bridge piers strengthened with low-cost glass fiber reinforced polymers (LC-GFRP). Three full-scale bridge piers were tested under lateral cyclic loading. A control bridge pier was tested in the as-built condition and the other two bridge piers were experimentally tested after strengthening them with LC-GFRP jacketing. The LC-GFRP strengthening was performed using two different configurations. The control bridge pier showed poor seismic response with the progress of significant cracks at very low drift levels. Test results indicated the efficiency of the tested strengthening configurations to improve the performance of the strengthened bridge piers including crack pattern, yield, and ultimate cyclic load capacities, ductility ratio, dissipated energy capacity, initial stiffness degradation, and fracture mode.

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Shear Strengthening of RC Deep Beams with Sprayed Fiber-reinforced Polymer Composites (SFRP): Part 2 Finite Element Analysis

Cited by 13 publications

References 46 publications

Evaluation of Performance of Shear Deficient Curved Beams Strengthened by Different Methods

Evaluation of Performance of Shear Deficient Curved Beams Strengthened by Different Methods

Flexural Behavior of Natural Hybrid FRP-Strengthened RC Beams and Strain Measurements Using BOTDA

Bulletin of the Polish Academy of Sciences: Technical Sciences

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