Concrete members historically have used either pre-stressed steel or steel bars. In recent years there has been an increased interest in the use of fiber reinforced polymer （FRP） materials. However, the flexure beha...Concrete members historically have used either pre-stressed steel or steel bars. In recent years there has been an increased interest in the use of fiber reinforced polymer （FRP） materials. However, the flexure behavior of a hybrid system reinforced by the combination of pre-stressed steel and glass fiber reinforced （GFRP） is still relatively unknown. The purpose of this work is to study this. Two slabs of 100 and 150-millimeter thickness, with a span of 2.1 m reinforced with both pre-stressing steel and GFRP were constructed and tested to failure using ACI 318-11 and ACI 440.1 R-15. The concrete had strength of 31 MPa and the slabs were respectively reinforced with 5#4 bars and 3#5 bars. Each slab had 37.41 mm2 prestressing wire with a failure stress of 1722.5 MPa. The experimental flexural strength and deflection of slabs were compared with their respective sizes theoretical slabs. The theoretical slabs were either reinforced with pre-stressed steel or GFRP rebars, or a hybrid system. It was found that the hybrid system produces better results.展开更多
This article has been retracted at the request of the corresponding author.The result in the article substantially overlap with a previously published article by Feng et al.,2016 which was not appropriately acknowledg...This article has been retracted at the request of the corresponding author.The result in the article substantially overlap with a previously published article by Feng et al.,2016 which was not appropriately acknowledged in the article.Faruqi M,Rajaskanthan G,Bailey B,and Aguiniga F agree to this retraction.The online version of this article contains the full text of the retracted article as electronic supplementary material.展开更多
This article[1]has been retracted at the request of the corresponding author.The results in the article substantially overlap with a previously published article by Feng et al.,2016[2]which was not appropriately ackno...This article[1]has been retracted at the request of the corresponding author.The results in the article substantially overlap with a previously published article by Feng et al.,2016[2]which was not appropriately acknowledged in the article.Faruqi M,Rajaskanthan G,Bailey B,and Aguiniga F all agree to this retraction.展开更多
文摘Concrete members historically have used either pre-stressed steel or steel bars. In recent years there has been an increased interest in the use of fiber reinforced polymer （FRP） materials. However, the flexure behavior of a hybrid system reinforced by the combination of pre-stressed steel and glass fiber reinforced （GFRP） is still relatively unknown. The purpose of this work is to study this. Two slabs of 100 and 150-millimeter thickness, with a span of 2.1 m reinforced with both pre-stressing steel and GFRP were constructed and tested to failure using ACI 318-11 and ACI 440.1 R-15. The concrete had strength of 31 MPa and the slabs were respectively reinforced with 5#4 bars and 3#5 bars. Each slab had 37.41 mm2 prestressing wire with a failure stress of 1722.5 MPa. The experimental flexural strength and deflection of slabs were compared with their respective sizes theoretical slabs. The theoretical slabs were either reinforced with pre-stressed steel or GFRP rebars, or a hybrid system. It was found that the hybrid system produces better results.
文摘This article has been retracted at the request of the corresponding author.The result in the article substantially overlap with a previously published article by Feng et al.,2016 which was not appropriately acknowledged in the article.Faruqi M,Rajaskanthan G,Bailey B,and Aguiniga F agree to this retraction.The online version of this article contains the full text of the retracted article as electronic supplementary material.
文摘This article[1]has been retracted at the request of the corresponding author.The results in the article substantially overlap with a previously published article by Feng et al.,2016[2]which was not appropriately acknowledged in the article.Faruqi M,Rajaskanthan G,Bailey B,and Aguiniga F all agree to this retraction.
