TY - GEN
T1 - Structural behavior of UHPFRC beams according to reinforcement ratio of internal GFRP rebar
AU - Yoo, Doo Yeol
AU - Shin, Hyun Oh
AU - Kwon, Ki Yeon
AU - Yoon, Young Soo
PY - 2014/1/1
Y1 - 2014/1/1
N2 - The objective of this study is to investigate the flexural behavior of ultra-high-performance fiber-reinforced concrete (UHPFRC) beams reinforced with internal glass fiber-reinforced polymer (GFRP) bars. Four large UHPFRC beams with different reinforcement ratios (ρ = 0.53%, 0.79%, 1.41%, and 1.71%) were fabricated and tested. This study investigated the effects of the GFRP reinforcement ratio on the load carrying capacity, deflection at service loads, cracking behavior, and deformability. Test results showed that higher load carrying capacity, higher deformability, and lower crack width were obtained as greater GFRP reinforcement ratios were used. The post-cracking stiffness before crack localization was substantially improved because of the strain-hardening response of UHPFRC. Finally, the service deflections were compared with the predictions of the ACI 440.1R and Bischoff's model.
AB - The objective of this study is to investigate the flexural behavior of ultra-high-performance fiber-reinforced concrete (UHPFRC) beams reinforced with internal glass fiber-reinforced polymer (GFRP) bars. Four large UHPFRC beams with different reinforcement ratios (ρ = 0.53%, 0.79%, 1.41%, and 1.71%) were fabricated and tested. This study investigated the effects of the GFRP reinforcement ratio on the load carrying capacity, deflection at service loads, cracking behavior, and deformability. Test results showed that higher load carrying capacity, higher deformability, and lower crack width were obtained as greater GFRP reinforcement ratios were used. The post-cracking stiffness before crack localization was substantially improved because of the strain-hardening response of UHPFRC. Finally, the service deflections were compared with the predictions of the ACI 440.1R and Bischoff's model.
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M3 - Conference contribution
AN - SCOPUS:85067729460
T3 - Proceedings of the 7th International Conference on FRP Composites in Civil Engineering, CICE 2014
BT - Proceedings of the 7th International Conference on FRP Composites in Civil Engineering, CICE 2014
A2 - El-Hacha, Raafat
PB - International Institute for FRP in Construction (IIFC)
T2 - 7th International Conference on FRP Composites in Civil Engineering, CICE 2014
Y2 - 20 August 2014 through 22 August 2014
ER -