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RISDelamination Failure in Concrete Beams Retrofitted with a Bonded Plate
Publisher: American Society of Civil Engineers
Abstract: Concrete beams are often retrofitted with bonded steel or composite plates. The failure of the retrofitted member is usually due to delamination of the plate from the beam. Delamination can occur either at the end of the ...
Modeling of Concrete Cracking Induced by Steel Expansion
Publisher: American Society of Civil Engineers
Abstract: When steel reinforcement corrodes in a concrete structure, the expansion of corrosion products often leads to cracking in the concrete. In this paper, a simple physical model is developed to relate the size of cracks to ...
Design Criteria for Pseudoductile Fiber-Reinforced Composites
Publisher: American Society of Civil Engineers
Abstract: The toughness of brittle materials can be significantly improved by the incorporation of fibers. Moreover, both theoretical and experimental investigations have shown that properly designed fiber composites can exhibit ...
Fracture‐Based Two‐Way Debonding Model for Discontinuous Fibers in Elastic Matrix
Publisher: American Society of Civil Engineers
Abstract: The mechanical performance of brittle and quasi‐brittle materials can be significantly improved by the introduction of fibers. Fiber debonding, which results in the formation of bridging ligaments at the wake of cracks, ...
Strength Improvement of Strain-Hardening Cementitious Composites with Ultrahigh-Volume Fly Ash
Publisher: American Society of Civil Engineers
Effect of Uniaxial Strength and Fracture Parameters of Concrete on Its Biaxial Compressive Strength
Publisher: American Society of Civil Engineers
Abstract: The biaxial compressive behavior of concrete has been widely studied in the literature, and the biaxial envelope has always been reported for a particular uniaxial compressive strength. However, there is no theoretical or ...
Numerical Simulation of Chloride-Induced Corrosion Initiation in Reinforced Concrete Structures with Cracks
Publisher: American Society of Civil Engineers
Abstract: Steel corrosion is a major problem with concrete structures. For cracked concrete structures exposed to chloride environment, chloride diffusivity through the crack (
Optimal Steel Fiber Strength for Reinforcement of Cementitious Materials
Publisher: American Society of Civil Engineers
Abstract: Steel fiber is the most common type of fiber reinforcement in cementitious materials. The reinforcement efficiency, in terms of maximum crack bridging force and total energy absorption during fiber pullout, is a function ...
Effect of End Tapering on Crack-Induced FRP Debonding from the Concrete Substrate
Publisher: American Society of Civil Engineers
Abstract: The technique of bonding fiber-reinforced plastic (FRP) plates on the tensile side of concrete members has been proved to be an effective method for structural strengthening. For a RC beam strengthened with FRP plates, ...
Shear Span–Depth Ratio Effect on Behavior of RC Beam Shear Strengthened with Full-Wrapping FRP Strip
Publisher: American Society of Civil Engineers
Abstract: Shear span-to-effective depth ratio (av/d) is known to affect the shear behavior of RC members. However, this effect has not been appropriately addressed in existing design guidelines for the fiber-reinforced polymer (FRP) ...