Structural behavior of RC beams strengthened with prestressed near surface mounted technique using basalt FRP bars

2022 ◽  
Vol 250 ◽  
pp. 113489
Author(s):  
Hesham Sokairge ◽  
Fareed Elgabbas ◽  
Hany Elshafie
Keyword(s):  
Structural Behavior ◽  
Rc Beams ◽  
Near Surface ◽  
Near Surface Mounted ◽  
Frp Bars

Mechanical Behavior for RC Beams Strengthened with Near-Surface-Mounted Bars Considering Effect of Secondary Loading

2014 ◽  
Vol 638-640 ◽  
pp. 1360-1364
Author(s):  
Hai Xia Zhang ◽  
Jia Wei Pei ◽  
Lu Yuan He
Keyword(s):  
Failure Modes ◽  
Concrete Beams ◽  
Load Level ◽  
Rc Beams ◽  
Near Surface ◽  
Initial Load ◽  
Bond Property ◽  
Near Surface Mounted ◽  
Frp Bars ◽  
Strengthening Method

Compared with other strengthening methods, NSM FRP bars strengthening method has obvious advantages in bond property and fire prevention performance. In accordance with current experimental study and the theory of concrete beams strengthened in bending with FRP are introduced, and the effect of FRP bars strengthening quantity on failure modes of reinforcement beams and the initial load level influence on the ultimate bearing capacity are analyzed. It provides a basis for further research and application in China.

scholarly journals Effects of RC beams reinforcement using near surface mounted reinforced FRP composites

2010 ◽  
Vol 8 (2) ◽  
pp. 177-185 ◽  
Author(s):  
Slobodan Rankovic ◽  
Radomir Folic ◽  
Marina Mijalkovic
Keyword(s):  
Fiber Reinforced Polymer ◽  
Rc Beams ◽  
Near Surface ◽  
Frp Composites ◽  
Reinforced Polymer ◽  
Reinforced Beams ◽  
Externally Bonded ◽  
Near Surface Mounted ◽  
Basic Characteristics ◽  
Frp Bars

This paper analyzes application of modern reinforcement methods for reinforced concrete (RC) beams using fiber-reinforced polymer (FRP) materials. Basic characteristics of FRP materials and the method of mounting the FRP bars within concrete, that is, near the surface of the beams (NSM method) are presented. The properties of this method and its advantages in comparison to externally bonded reinforcement laminate method (EBR) have been analyzed. The results of measured deflections and width of the cracks of the beams reinforced by FRP bars, depending on the load are presented and discussed, in comparison to the results obtained from the non-reinforced beams. The experimental research was published at the Faculty of Civil Engineering and Architecture of Nis in 2009.

scholarly journals Strengthening of RC Beams Using Externally Bonded Reinforcement Combined with Near-Surface Mounted Technique

Polymers ◽  
2016 ◽  
Vol 8 (7) ◽  
pp. 261 ◽  
Author(s):  
Kh Darain ◽  
Mohd Jumaat ◽  
Ahmad Shukri ◽  
M. Obaydullah ◽  
Md. Huda ◽  
...  
Keyword(s):  
Rc Beams ◽  
Near Surface ◽  
Externally Bonded ◽  
Near Surface Mounted

Structural Behavior of Reinforced Concrete Beams Strengthened with Carbon Fiber Reinforcement Polymer Plate

2013 ◽  
Vol 302 ◽  
pp. 338-342
Author(s):  
Soo Yeon Seo
Keyword(s):  
Carbon Fiber ◽  
Fiber Reinforcement ◽  
Reinforced Concrete Beams ◽  
Structural Behavior ◽  
Rc Beam ◽  
Near Surface ◽  
Cfrp Plate ◽  
Carbon Fiber Reinforcement ◽  
Externally Bonded ◽  
Near Surface Mounted

This paper presents the study to find retrofit effect in case of Near-Surface-Mounted Retrofit (NSMR) using Carbon Fiber Reinforcement Polymer (CFRP) plate targeting reinforcement concrete (RC) beam by comparing the previous Externally Bonded Retrofit (EBR) method through experimental analytical works. Three RC beam specimens were made and two of them were retrofitted with CFRP plate by using EBR and NSMR. Also Finite Element (FE) analysis was performed in order to simulate the structural behavior of the beams by considering the bond properties between concrete and CFRP. From the study, it was found that the beam retrofitted with EBR hada reduction of bond capacity in the joint while the beam retrofitted with NSMR had perfect bond capacity.

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