Publication: Finite element analysis of glass fiber-reinforced polymer-(Gfrp) reinforced continuous concrete beams
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Issued Date
2021
Resource Type
Language
eng
File Type
application/pdf
ISSN
20734360
Other identifier(s)
2-s2.0-85121723054
Rights Holder(s)
Scopus
Bibliographic Citation
Polymers. Vol 13, No.24 (2021)
Suggested Citation
Ahmad H., Elnemr A., Ali N., Hussain Q., Chaiyasarn K., Joyklad P. Finite element analysis of glass fiber-reinforced polymer-(Gfrp) reinforced continuous concrete beams. Polymers. Vol 13, No.24 (2021). doi:10.3390/polym13244468 Retrieved from: https://hdl.handle.net/20.500.14740/3842
Author(s)
Abstract
Fiber-reinforced concrete (FRC) is a competitive solution for the durability of reinforced structures. This paper aims to observe the moment redistribution behavior occurring due to flexural and shear loading in Glass Fiber-Reinforced Polymer-(GFRP) reinforced continuous concrete beams. A rectangular cross-section was adopted in this study with dimensions of 200 mm in width and 300 mm in depth with a constant shear span-to-depth ratio of 3. The reinforcement ratio for the top and bottom were equal at sagging and hogging moment regions. A finite element model was created using Analysis System (ANSYS) and validated with the existing experimental results in the literature review. Based on the literature review, the parametric study was conducted on twelve beam specimens to evaluate the influence of concrete compressive strength, transversal GFRP stirrups ratio, and longitudinal reinforcement ratio on the redistribution of the moment in beams. Several codes and guidelines adopted different analytical models. The Canadian Standards Association (CSA) S806 adopted the modified compression field theory in predicting the shear capacity of the simply supported beams. Recently, various researchers encountered several factors and modifications to account for concrete contribution, longitudinal, and transverse reinforcement. A comparison between the predicting shear capacity of the generated finite element model, the analytical model, and the existing data from the literature was performed. The generated finite element model showed a good agreement with the experimental results, while the beam specimens failed in shear after undergoing significant moment redistribution from hogging to sagging moment region. The moment distribution observed about 21.5% from FEM of beam specimen GN-1.2-0.48-d, while the experimental results achieved 24% at failure load. For high strength concrete presented in beam specimen GH-1.2-0.63-d, the result showed about 20.2% moment distribution, compared to that achieved experimentally of 23% at failure load. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Subject(s)
Analytical models
Bridge decks
Compressive strength
Concrete beams and girders
Glass fibers
High performance concrete
Reinforced concrete
Concrete beam
Continuous beams
Finite element modelling (FEM)
Glassfiber reinforced polymers (GFRP)
Moment redistribu-tion
Moment redistribution
Reinforcement ratios
Sagging moment
Shear capacity
Stirrup
Finite element method
Bridge decks
Compressive strength
Concrete beams and girders
Glass fibers
High performance concrete
Reinforced concrete
Concrete beam
Continuous beams
Finite element modelling (FEM)
Glassfiber reinforced polymers (GFRP)
Moment redistribu-tion
Moment redistribution
Reinforcement ratios
Sagging moment
Shear capacity
Stirrup
Finite element method