Damage Identification in Fibre Reinforced Plastics Strengthened Reinforced Concrete Beams

2011 ◽  
Author(s):  
R. Perera ◽  
A. Ruiz
Keyword(s):  
Reinforced Concrete ◽  
Damage Identification ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Reinforced Plastics

Strengthening of Reinforced Concrete Beams by Carbon Fiber Composites

2018 ◽  
Vol 931 ◽  
pp. 379-384
Author(s):  
Yuri V. Ivanov ◽  
Yuri F. Rogatnev ◽  
Igor I. Ushakov
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Bearing Capacity ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Carbon Fiber Composites ◽  
Limiting State ◽  
Reinforced Plastics ◽  
Reinforced Beams ◽  
The Given

The paper considers the results of the experimental study of the reinforced concrete beams strengthened by carbon fiber reinforced plastics (the CFRP). Eight reinforced concrete beams of the 80x160 mm section and 1500 mm designed span have been manufactured and tested. The influence of the number of the CFRP layers (strengthening power) on bearing capacity and rigidity under the static loading of beams in the thirds of the span has been studied. The results obtained indicate the increase in bearing capacity of the reinforced beams from 24% up to 55% and the increase in rigidity by 45% for the commonly adopted limiting state, i.e. achieving ultimate deformations in concrete of the compressed zone). The paper underlines the need for using anchor devices in the form of U-shaped binders to ensure the efficiency of the given method of strengthening.

scholarly journals STUDIES OF THE STRESS-STRAIN STATE OF REINFORCED CONCRETE BEAMS REINFORCED WITH CARBON FIBER

2021 ◽  
Vol 82 (4) ◽  
pp. 101-110
Author(s):  
I.S. Bondar ◽  
◽  
Al Dulaimi Salman Dawood Salman ◽  
D.T. Aldekeyeva ◽  
R.S. Imambaeva ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Strain State ◽  
Concrete Beams ◽  
Field Studies ◽  
Reinforced Concrete Beams ◽  
Stress Strain ◽  
Reinforced Plastics ◽  
Stress Strain State ◽  
Numerical Studies

The article examines field studies of reinforced concrete beams, fracture schemes, and the nature of the formation, development of cracks in reinforced concrete elements. Modeling the stress-strain state of reinforced concrete beams in the ANSYS software and computational complex, comparing the results of field and numerical studies. A method of finite element modeling of beams reinforced with fiber plastics (carbon fiber reinforced plastics) is proposed. A comparison of fracturing schemes obtained as a result of numerical simulation is presented.

Study of Flexural Property of Prestressed Carbonfiber-Reinforced Plastics (CFRP) Reinforced Concrete Beams

2013 ◽  
Vol 351-352 ◽  
pp. 1503-1508
Author(s):  
Bo Wang ◽  
Guang Xin Men
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beams ◽  
Experimental Results ◽  
Reinforced Concrete Beams ◽  
Flexural Property ◽  
Bending Rigidity ◽  
Yield Load ◽  
Reinforced Plastics

To study the effect of prestress level on beam for its flexural property, through comparing of the stress property of non-reinforced beam, non-prestressed fiber beam, and prestressed fiber beam. The experimental results show that non-prestressed fiber makes little difference in improving beams flexural property, while prestressed fiber has improved beams cracking load, yield load, bending rigidity greatly.

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