TY - GEN
T1 - Serviceability and moment redistribution of continuous concrete elements reinforced with steel-basalt bars
AU - Akiel, M.
AU - El-Maaddawy, T.
AU - El Refai, Ahmed
N1 - Funding Information:
The authors would like to express their gratitude to the UAE University for financing this project under grant No. 31N232.
Publisher Copyright:
© 2019 9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2018. All Rights Reserved.
PY - 2018
Y1 - 2018
N2 - The serviceability and moment redistribution of continuous concrete flexural elements internally-reinforced with either basalt fiber-reinforced polymer (BFRP) bars or a combination of steel and BFRP bars are evaluated in this paper. Six two-span concrete specimens were constructed and tested. The specimens were 200 mm deep, 500 mm wide, and 5000 mm long. Each span had a length of 2400 mm. Three specimens were reinforced with BFRP bars only whereas the remaining three specimens were reinforced with hybrid steel-BFRP bars. The specimens had different hogging-to-sagging reinforcement ratios. Specimens reinforced with hybrid steel-BFRP bars were designed in a way to have nominal sagging and hogging moment capacities similar to those of their counterparts reinforced with BFRP bars only. The use of hybrid steel-BFRP reinforcing bars rather than BFRP bars only improved the serviceability performance of continuous concrete elements without compromising their deformational capacity. Specimens reinforced with hybrid steel-BFRP bars exhibited less deflections and smaller crack widths at service load than those of their counterparts reinforced with BFRP bars only. Hybrid-reinforced specimens reached their ultimate loads at deflection values comparable to those of their counterparts reinforced with BFRP bars only. The behavior of the specimens reinforced with BFRP bars only deviated from the elastic response, which resulted in a considerable moment redistribution between the sagging and hogging regions. Specimens reinforced with hybrid steel-BFRP bars exhibited less deviation from the elastic response and lower moment redistribution ratios comparted with those of their counterparts reinforced with BFRP bars only.
AB - The serviceability and moment redistribution of continuous concrete flexural elements internally-reinforced with either basalt fiber-reinforced polymer (BFRP) bars or a combination of steel and BFRP bars are evaluated in this paper. Six two-span concrete specimens were constructed and tested. The specimens were 200 mm deep, 500 mm wide, and 5000 mm long. Each span had a length of 2400 mm. Three specimens were reinforced with BFRP bars only whereas the remaining three specimens were reinforced with hybrid steel-BFRP bars. The specimens had different hogging-to-sagging reinforcement ratios. Specimens reinforced with hybrid steel-BFRP bars were designed in a way to have nominal sagging and hogging moment capacities similar to those of their counterparts reinforced with BFRP bars only. The use of hybrid steel-BFRP reinforcing bars rather than BFRP bars only improved the serviceability performance of continuous concrete elements without compromising their deformational capacity. Specimens reinforced with hybrid steel-BFRP bars exhibited less deflections and smaller crack widths at service load than those of their counterparts reinforced with BFRP bars only. Hybrid-reinforced specimens reached their ultimate loads at deflection values comparable to those of their counterparts reinforced with BFRP bars only. The behavior of the specimens reinforced with BFRP bars only deviated from the elastic response, which resulted in a considerable moment redistribution between the sagging and hogging regions. Specimens reinforced with hybrid steel-BFRP bars exhibited less deviation from the elastic response and lower moment redistribution ratios comparted with those of their counterparts reinforced with BFRP bars only.
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M3 - Conference contribution
AN - SCOPUS:85077632784
T3 - 9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2018
SP - 794
EP - 801
BT - 9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2018
A2 - Ferrier, Emmanuel
A2 - Benzarti, Karim
A2 - Caron, Jean-Francois
PB - International Institute for FRP in Construction (IIFC)
T2 - 9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2018
Y2 - 17 July 2018 through 19 July 2018
ER -