Experimental behavior of novel GFRP reinforcing bars under compressive loads
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Títol
Experimental behavior of novel GFRP reinforcing bars under compressive loadsAutoria
Data de publicació
2023Editor
Peter the Great St. Petersburg Polytechnic UniversityCita bibliogràfica
Almerich-Chulia, A., Martin-Concepcion, P., Molines-Cano, J.M., Moreno-Puchalt, J. Experimental behavior of novel GFRP reinforcing bars under compression loads. Magazine of Civil Engineering. 2023. 118(2). Article no. 11805. DOI: 10.34910/MCE.118.5Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://cyberleninka.ru/article/n/experimental-behavior-of-novel-gfrp-reinforcin ...Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
Glass fiber-reinforced polymer (GFRP) bars have been used in RC structures due to their high
tensile strength capacity and resistance to corrosion in comparison with steel. However, international
standards do not ... [+]
Glass fiber-reinforced polymer (GFRP) bars have been used in RC structures due to their high
tensile strength capacity and resistance to corrosion in comparison with steel. However, international
standards do not recommend their use in RC structure elements subjected to compressive loads. Currently,
there is no standard method to determine the compressive characteristics of FRP bars. This article presents
a new type of GFRP bars designed specially to support compressive loads: they have additional winding
GFRP layers around the longitudinal fibers. An exhaustive experimental study was carried out to obtain
compressive properties of the bars: compressive strength, Young’s modulus and stress-strain relation. After
post-processing the experimental results of the study, this paper showed compressive strength between
50% and 60% of tensile strength, which allows employing the bars as internal reinforcement in RC
structures. Their obtained Young’s modulus is the same in both tensile and compression, which enables
the linear stress-strain relation to be extended to the entire range of deformations. This is most
advantageous for structural analysis procedures in the linear elastic regime. Finally, based on the
experimental results of failure modes, some limitations about the cross-sectional area or the slenderness
were proposed for the use as internal reinforcing in RC structures, which helps the researchers in the design
procedure for members reinforced with FRP bars. [-]
Publicat a
Magazine of Civil Engineering. 2023. 118(2).Entitat finançadora
Generalitat Valenciana
Codi del projecte o subvenció
Grant CIGE/2021/141
Drets d'accés
© Almerich-Chulia, A., Martin-Concepcion, P., Molines-Cano, J.M., Moreno-Puchalt, J., 2023. Published by Peter
the Great St. Petersburg Polytechnic University.
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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