Strengthening of Reinforced Concrete Beams with Externally Bonded Composite Laminates

Ross, C. A.; Jerome, David M.; Tedesco, Joseph W.; Hughes, Mary L.

doi:10.14359/612

Cited by 36 publications

(4 citation statements)

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“…It is thus clear that its tensile strength is high. The corresponding references indicate when adhesive strength of CFRP and concrete ≥2.5 MPa, cohesive failure happens in the concrete [2][3][4] . In the experiment, the tensile strength of concrete member is less than that of structural adhesive.…”

Section: The Results and Analysis Of The Experimentsmentioning

confidence: 99%

The Experiment of Ultimate Capacity for the Reinforced Concrete Beam Strengthened with CFRP

Wang

2011

AMR

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As to reinforced concrete structure, the method to deal with the shortage of bearing capacity is one of the puzzles of structure engineering, so its reinforcement technology is a research hotspot. At present, although there are many reinforcing methods of existing structures, FRP is the more widely used in engineering because of its efficiency, low cost, and beauty. The paper takes the strengthened reinforced concrete structure beam with FRP for example, bearing capacity of normal section, the shear bearing capacity and cohesiveness is tested, and bearing performance for strengthening the strengthened reinforced concrete beam with FRP is analyzed.

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Section: The Results and Analysis Of The Experimentsmentioning

confidence: 99%

The Experiment of Ultimate Capacity for the Reinforced Concrete Beam Strengthened with CFRP

Wang

2011

AMR

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“…(1)the reinforced beam accords with flat section assumption; (2)The distance from the center of the FRP cloth to the top surface of components is equal to the height of the component;(3)There was no relative slipping Between the FRP sheet and concrete,between steel and concrete ;(4)Local buckling and overall instability does not occur for steel reinforced;(5)Stress-strain relation of steel is linear and horizontal combination polyline; Its ultimate tensile strain is taken 0.01;(6)stress -strain relationship of FRP is linear elastic; stress is equal to the strain multiplied by the modulus of elasticity;(7)Do not consider the role of concrete tensile; Failure Modes. A large number of research data show that [7], the bending failure modes of reinforced RC flexural members ,with the increase in the amount of reinforcement material, will occur a similar failure pattern of ordinary steel RC, such as the rare-reinforced, the under-reinforced, the over-reinforced . This paper analyzes the following three failure modes of flexural capacity: 1,the yield of tensile steel; the yield of reinforced tensile steel;the snap of FRP; Compressive zone of concrete have not reached the peak strain.2,the yield of tensile steel; the yield of reinforced tensile steel; the snap of FRP; the crushed concrete in compression zone.3,the yield of tensile steel; the yield of reinforced tensile steel; the not snap of FRP; the crushed concrete in compression zone The compressive region height of three characteristic damage can be obtained separately according to the basic assumption.…”

Section: The Basic Assumptions and Failure Modementioning

confidence: 99%

Calculation Method of Flexural Capacity under Limitation Failure of SRHC Beams Strengthened with FRP

Zhou

Nie

Bai

2014

AMR

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To solve the problem of SRHC beam strengthened with FRP(Fiber Reinforced Polymer),a new renovate SRC beam of strengthened with FRP has been brought forward in this paper.In this paper, the load-deformation process,flexural failure characteristics of SRHC beams strengthened with FRP were researched by a new practical superposition method, the damage and bearing capacity under the limitation failure of SRHC beam strengthened with FRP are studied. In addition, according to the different positions of central axis and section of steel, the compressive region height under the limitation of three destroy is put forward. Compare the relation between the compressive region height with the distance of top flange of steel to the compression flange of concrete, hence, a applied formula to the different flexural capacity under the limitation failure of beams strengthened with FRP, the concept of presented equation is convenient for use.

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“…According to reference [13][14], in order to calculate the bearing capacity of GFRP tube the SRHC member in bending right section, this text propose the following hypotheses:…”

Section: Fundamental Assumptionmentioning

confidence: 99%

Nonlinear Analysis of Flexural Members of GFRP SR Concrete

Zhou

Liu

2011

AMM

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To investigate further the bearing capacity of flexural members of GFRP（Glass Fiber Reinforced Polymer）SR(steel-reinforced concrete) under symmetric monotonic loading, a full range nonlinear analysis is made. Flexural capacity computing program of GFRP-Reinforced structures is put out, according to structure reinforcing theory and correlative rules through the finite ribbon method based on flat section assumption. The moment-curvature relative curves and the influence curves of the fiber winding angle and pipe wall thickness to load-deformation are obtained by the computer programming. The test specimen’s flexural capacity increases obviously with the increasing of steel ribs models. The slope of curve decreasing in monotonic loading latterly showed that the ductility of component improves. The changes of concrete strength had little effect on initial stiffness and capacity of GFRP SR concrete.

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Strengthening of Reinforced Concrete Beams with Externally Bonded Composite Laminates

Cited by 36 publications

References 0 publications

The Experiment of Ultimate Capacity for the Reinforced Concrete Beam Strengthened with CFRP

The Experiment of Ultimate Capacity for the Reinforced Concrete Beam Strengthened with CFRP

Calculation Method of Flexural Capacity under Limitation Failure of SRHC Beams Strengthened with FRP

Nonlinear Analysis of Flexural Members of GFRP SR Concrete

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