Reliability assessment of confinement models of carbon fiber reinforced polymer-confined concrete

2016 ◽  
Vol 35 (12) ◽  
pp. 996-1026 ◽  
Author(s):  
Liang Huang ◽  
Chang Gao ◽  
Libo Yan ◽  
Bohumil Kasal ◽  
Gao Ma
Keyword(s):  
Carbon Fiber ◽  
Reliability Assessment ◽  
Fiber Reinforced Polymer ◽  
Confined Concrete ◽  
Carbon Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Carbon Fiber Reinforced

Failure mechanism of fiber-reinforced polymer-confined concrete column with initial defects

2018 ◽  
Vol 52 (21) ◽  
pp. 2887-2897 ◽  
Author(s):  
Ying Xu ◽  
Chengyin Liu ◽  
Lei Chai ◽  
Miaomiao Lu ◽  
Congcong Luo
Keyword(s):  
Carbon Fiber ◽  
Defect Size ◽  
Fiber Reinforced Polymer ◽  
Confined Concrete ◽  
Carbon Fiber Reinforced Polymer ◽  
Concrete Column ◽  
Fiber Reinforced ◽  
Initial Defect ◽  
Reinforced Polymer ◽  
Carbon Fiber Reinforced

The effect of initial defect size on the mechanical behavior and failure mode of carbon fiber-reinforced polymer- confined concrete column was investigated through theoretical analysis, finite element software simulation and experiment validation. Qualitative theoretical analysis was firstly explored to study the effect of initial defect size on the mechanical behavior of confined concrete column from macro to micro perspective. Numerical simulations and experimental investigation were then carried out and compared to investigate the mechanical behavior of carbon fiber-reinforced polymer-confined concrete column with initial defects under axial compression and eccentric compression. The variation of defect criticality was investigated by varying the layer number of carbon fiber-reinforced polymer and cross-section size of concrete columns. The effect of initial defect size on the failure mode of carbon fiber-reinforced polymer-confined concrete column was finally demonstrated.

Restoring Initially Cracked Reinforced Concrete Beams utilizing Carbon Fiber Reinforced Polymer Strips

2019 ◽  
Vol 7 (1) ◽  
pp. 30-34
Author(s):  
A. Ajwad ◽  
U. Ilyas ◽  
N. Khadim ◽  
Abdullah ◽  
M.U. Rashid ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Concrete Beams ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Loading Test ◽  
Control Beam ◽  
Reinforced Polymer ◽  
Cfrp Sheet ◽  
Carbon Fiber Reinforced

Carbon fiber reinforced polymer (CFRP) strips are widely used all over the globe as a repair and strengthening material for concrete elements. This paper looks at comparison of numerous methods to rehabilitate concrete beams with the use of CFRP sheet strips. This research work consists of 4 under-reinforced, properly cured RCC beams under two point loading test. One beam was loaded till failure, which was considered the control beam for comparison. Other 3 beams were load till the appearance of initial crack, which normally occurred at third-quarters of failure load and then repaired with different ratios and design of CFRP sheet strips. Afterwards, the repaired beams were loaded again till failure and the results were compared with control beam. Deflections and ultimate load were noted for all concrete beams. It was found out the use of CFRP sheet strips did increase the maximum load bearing capacity of cracked beams, although their behavior was more brittle as compared with control beam.

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