Behavior of CFRP Strengthened Reinforced Concrete Beams in Corrosive Environment

Soudki, Khaled; El-Salakawy, Ehab; Craig, Brent

doi:10.1061/(asce)1090-0268(2007)11:3(291)

Cited by 70 publications

(38 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Another interface element is used to transfer shear in nodal forces between concrete and the FRP elements. The results are closer, in terms of the load-deflection and the crack path, to the test data, which have been reported by Adhikary and Mutsuyoshi [28], and by Soudki et al [29]. Fig.…”

Section: Introductionsupporting

confidence: 85%

See 1 more Smart Citation

Fracture mechanic modeling of fiber reinforced polymer shear-strengthened reinforced concrete beam

Shahbazpanahi

Ali

Kamgar

et al. 2015

Composites Part B: Engineering

View full text Add to dashboard Cite

a b s t r a c tA numerical method is developed to model shear-strengthening of reinforced concrete beam by using fiber reinforced polymer (FRP) composites. Tensile crack is simulated by a non-linear spring element with softening behavior ahead of the crack tip to model the cohesive zone in concrete. A truss element is used, parallel to the spring element, to simulate the energy dissipation rate by the FRP. The strain energy release rate is calculated directly by using a virtual crack closure technique. It is observed that the length of the fracture process zone (FPZ) increases with the application of FRP shear-strengthening. The present model shows that the main diagonal crack is formed at the support in the control beam while it appears through the shear span in the shear-strengthened beam. Another important observation is that the load capacity increases with the number of CFRP sheets in the shear span.

show abstract

Section: Introductionsupporting

confidence: 85%

“…Another example is a full-scale simply supported beam with four-point load strengthened by the CFRP sheet, T-0 beam, which has been tested earlier [29]. Fig.…”

Section: Resultsmentioning

confidence: 99%

Fracture mechanic modeling of fiber reinforced polymer shear-strengthened reinforced concrete beam

Shahbazpanahi

Ali

Kamgar

et al. 2015

Composites Part B: Engineering

View full text Add to dashboard Cite

show abstract

“…The predictive equations of tensile strength and elastic modulus according to (5) and (2) are given in Tables 3 and 4, respectively. For unstressed specimens, the predicted results from (2) and (5) agree well with those obtained from experiments.…”

Section: Prediction Of Long-term Behaviormentioning

confidence: 99%

“…Soudki et al [2] studied the behavior of CFRP strengthened RC beams subjected to WD cycles with 3% NaCl. Their test results displayed that the critical chloride levels reached the reinforced steel bars after 200 WD cycles and visible cracks and stains appeared after 300 WD cycles.…”

Section: Introductionmentioning

confidence: 99%

Combined Effects of Sustained Loads and Wet-Dry Cycles on Durability of Glass Fiber Reinforced Polymer Composites

Wang

Liu

et al. 2017

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

This paper deals with durability of glass fiber reinforced polymer (GFRP) composites under the combined effects of sustained tensile loads and wet-dry (WD) cycles. Two different solutions (distilled water and saltwater) were used to imitate the freshwater and marine environments, respectively. Tensile properties of the unconditioned and conditioned specimens were measured to study the durability of GFRP composites under these 2 effects. The response indicated that both tensile strength and elastic modulus increased initially upon WD cycles, which was attributed to both the postcuring of resin and the sustained tensile stress allowing for fastec cure. Further exposure to WD cycles in distilled water or saltwater led to a steady decrease in tensile strength and modulus. WD cycles of saltwater and distilled water have similar effects on the degradation of the tensile properties for unstressed specimens. However, the elastic modulus and elongation at rupture of stressed specimens under WD cycles of saltwater decreased more than those specimens under WD cycles of distilled water. Moreover, increase of sustained loads led to a decrease in tensile strength. Based on Arrhenius method, a prediction model which accounted for the effects of postcure processes was developed. The predicted results of tensile strength and elastic modulus agree well with those obtained from the experiments.

show abstract

“…It increases the shear capacity of the beam significantly [6]. Many studies have shown that CFRP strengthening increases the ultimate load capacity of RC members [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

The Behavior of Carbon Fiber Reinforced Polymer (Cfrp) Strengthened Beams Under a Marine Environment

Fazli

Yassin

Shafiq

et al. 2017

GEOMATE

View full text Add to dashboard Cite

Marine concrete structures are subjected to a harsh environment and potential climate change variables. Deterioration of the structure demands drastic measures for repair and rehabilitation. Advanced composite materials exhibit unique advantages compared to conventional construction materials. Over the years, carbon fiber reinforced polymer (CFRP) composite material has been used widely for the repair and rehabilitation of structures. Many studies have been conducted on the performance of FRP flexural strengthened reinforced concrete (RC) members. Still, experimental studies investigating the performance of shear strengthening under real environmental conditions are lacking. This paper helps fill this gap because it is an experimental investigation of the behavior of CFRP shear strengthened RC beams under a marine environment. Specimens were exposed to cyclic (wet/dry) and full exposure to the elements for a 3-month period. Six strengthened beams and one unstrengthened beam were tested; the tested control beam failed due to a diagonal-tension crack. The increase in the concrete shear capacity of the strengthened specimens was in the range of 14-18% compared to the control beam. Thus, the results lead to the conclusion that CFRP strengthening increases the shear capacity of specimens considerably.

show abstract

Behavior of CFRP Strengthened Reinforced Concrete Beams in Corrosive Environment

Cited by 70 publications

References 13 publications

Fracture mechanic modeling of fiber reinforced polymer shear-strengthened reinforced concrete beam

Fracture mechanic modeling of fiber reinforced polymer shear-strengthened reinforced concrete beam

Combined Effects of Sustained Loads and Wet-Dry Cycles on Durability of Glass Fiber Reinforced Polymer Composites

The Behavior of Carbon Fiber Reinforced Polymer (Cfrp) Strengthened Beams Under a Marine Environment

Contact Info

Product

Resources

About