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RISEffect of Concrete Composition on FRP/Concrete Bond Capacity
Publisher: American Society of Civil Engineers
Abstract: External bonding of fiber-reinforced plastics (FRP) to concrete members has been established as an efficient and effective method for structural strengthening and retrofitting. Direct shear test is often employed to study ...
Energy-Based Modeling Approach for Debonding of FRP Plate from Concrete Substrate
Publisher: American Society of Civil Engineers
Abstract: For concrete beams and slabs strengthened with bonded fiber reinforced plastic (FRP) plates, plate debonding from the concrete substrate is a common failure mode. In this paper, the debonding process is modeled as the ...
Three-Parameter Model for Debonding of FRP Plate from Concrete Substrate
Publisher: American Society of Civil Engineers
Abstract: Concrete beams retrofitted with bonded fiber reinforced plastic (FRP) plates often fail by debonding of the plate from the concrete surface. To predict the failure load in design, a proper debonding model is required. As ...
New Testing Procedure for Shrinkage Cracking of Fiber-Reinforced Shotcrete
Publisher: American Society of Civil Engineers
Abstract: Plain shotcrete and fiber-reinforced shotcrete (FRS) are commonly employed to produce layers or linings with large surface/volume ratios. Restrained shrinkage cracking is hence an important concern from both structural and ...
Empirical Approach for Determining Ultimate FRP Strain in FRP-Strengthened Concrete Beams
Publisher: American Society of Civil Engineers
Abstract: The flexural capacity of concrete beams can be efficiently and effectively improved through bonding fiber-reinforced plastic (FRP) plates to the tensile side. Failure of the strengthened member often occurs through debonding ...
Theoretical Modeling of Signal Loss versus Crack Opening for a Novel Crack Sensor
Publisher: American Society of Civil Engineers
Abstract: The degradation of concrete structures is always accompanied by the formation of cracks. Crack monitoring is hence useful in assessing the “health condition” of the structure. In our previous investigation on an optical-fiber ...
Determination of Nonlinear Softening Behavior at FRP Composite/Concrete Interface
Publisher: American Society of Civil Engineers
Abstract: For concrete beams and slabs, the bonding of fiber reinforced plastic (FRP) plates to the bottom surface is an effective and efficient technique for flexural strengthening. Failure of strengthened members often occurs due ...
Fracture Mechanics Approach for Failure of Concrete Shear Key. I: Theory
Publisher: American Society of Civil Engineers
Abstract: The objective of this paper is to develop a simple mechanical model for the analysis and design of plain or fiber‐reinforced concrete shear key joints. The method makes use of well‐known results of fracture mechanics and ...
Fracture Mechanics Approach for Failure of Concrete Shear Key. II: Verification
Publisher: American Society of Civil Engineers
Abstract: The objective of this paper is to verify a mechanical model for the failure of plain or fiber‐reinforced concrete shear key joints through the comparison of the model's prediction with both experimental measurements and ...