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Showing 1 to 20 of 36 for “"Shear reinforcement"”.
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Shear strength of prestressed concrete beams without shear reinforcement
Abstract available p.V
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C-Grid as Shear Reinforcement in Concrete Bridge Girders
… polymer (CFRP) materials as the flexural reinforcement in bridge girders has been extensively studied. However, CFRP transverse reinforcement has not been as rigorously investigated, and many studies have focused on CFCC stirrups. The use of C-Grid as an option for transverse reinforcing …
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Effects of Shear Reinforcement on the Large-Deflection Behavior of Reinforced Concrete Slabs
… concrete structures stipulate the use of shear reinforcement in roof, floor, and wall slabs irrespective of shear stress levels. The primary purpose of the shear reinforcement is not to resist shear forces, but rather to improve performance in the large-deflection region by tying the two …
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Residual strength of corroded reinforced concrete beams.
… much research is focused on the corrosion of reinforcement in concrete members. However, none addresses the problems associated with the residual strength of reinforced concrete beams exhibiting both main and shear reinforcement corrosion simultaneously. The aim of this research, therefore, …
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Shear strengthening of RC beams using carbon fiber reinforced polymer laminates
Shear failure is catastrophic and occurs usually without advanced warning, thus it is desirable that the beam fails in flexure rather than in shear. Many existing reinforced concrete (RC) members are found to be deficient in shear strength and need to be repaired. Deficiencies occur due to several …
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Numerical study of improved methods of in-field capacity assessment of reinforced concrete bridges
… the number, size, and orientation of steel reinforcement is necessary in order to make a complete strength assessment. Since reinforcement is not visible externally, making an accurate assessment without design drawings is extremely difficult. Improving the accuracy of capacity assessments …
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Puncionamento de lajes protendidas
… were supported on a central column and had no shear reinforcement. The parameters varied in them were the prestress applied, the compressive strenght of the concrete and the dimensions of the cross-section of the column. The puching failure loads obtained in the tests are compared with …
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Shear resistance at normal and high temperatures of reinforced concrete members with links and central bars.
… design of reinforced concrete members against shear. This review includes a study of the background of design method for shear resistance given in the British Standard code of practice and a comparison of this method with the methods recommended by the Eurocode and the American code of practice …
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NFEA Modeling of RC Beams Having Exposed Longitudinal Reinforcement: Effects of Debonding on Shear Behavior
… element that provides a description of shear response. The element formulation is derived based on a two-dimensional micro-plane approach, where the material state of stress is defined by a two-dimensional state of strain. The advantages of the proposed model over other methods are …
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Evaluating the Mechanical Properties and Fracture Behavior of Welded-Wire Reinforcement Using Tension and Charpy Tests and Sub-Size Charpy Corrections
Welded-wire reinforcement (WWR) is widely used as the main reinforcement in bridge decks and vertical shear reinforcement in concrete bridge girders. Past studies on concrete members reinforced with WWR have indicated that the reduced ductility of the cold-drawn wires leads to lower member …
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Horizontal Shear Transfer Between Ultra High Performance Concrete And Lightweight Concrete
… importance is the design of the horizontal shear reinforcement connecting the bridge deck to the top flange of the beams. Without adequate shear transfer, the flexural and shearing capacities will be greatly diminished. The current design equations from ACI and AASHTO were not developed for …
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Interface Shear Strength in Lightweight Concrete Bridge Girders
… to develop composite action, adequate horizontal shear resistance must be provided at the interface. As lightweight concrete is increasingly being used in bridge designs, it is important to understand the horizontal shear behavior of lightweight concrete. The current AASHTO LRFD Specification …
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Analysis of the AASHTO LFRD Horizontal Shear Strength Equation
… in the deck to the girders is done across a shear interface between the two elements. The transfer occurs through the cohesion of the concrete at the interface and then through the shear reinforcement across the interface. Adequate shear strength is essential to the success of the …
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Failure Mode Identifications Of Rc Beams Externally Strengthened With
… methods are employed to the beams for additional shear reinforcement to ensure flexural failure. The different CFRP anchorage methods will also be observed for their effectiveness during the debonding and propagation mechanism as well as evaluated for their progressive failure mode.
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Shear Strength of Full-Scale Prestressed Lightweight Concrete Girders with Composite Decks
… the strength of this material when designing for shear in beams. Design codes tend to penalize lightweight concrete due to its lower tensile strength and smoother interface along the shear cracks. In this study, there were twelve tests on six full-scale, prestressed girders with composite decks …
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Shear performance and behavior of long carbon fiber reinforced concrete
… testing program was developed to investigate the shear performance of fiber reinforced concrete beams. Long carbon fibers, to be included with a traditional fresh concrete mix, were developed and their shear performance was evaluated and compared to the performance and behavior of unreinforced …
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Structural Behaviour of Self Consolidating Steel Fiber Reinforced Concrete Beams
When subjected to a combination of moment and shear force, a reinforced concrete (RC) beam with either little or no transverse reinforcement can fail in shear before reaching its full flexural strength. This type of failure is sudden in nature and usually disastrous because it does not give …
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Punching shear capacity of flat slab-column junctions (a study by 3-D non-linear finite element analysis)
This thesis presents a study of punching shear capacity of flat slab-column junctions. A three dimensional non-linear finite element program based on 20 node isoparametric solid element was used for the investigation. The non-linear 3-D elastic isotropic model proposed by Motsovos was used to …
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Behavior and design of steel-plate composite (SC) walls for blast loads
… their mass and the ductility provided by steel reinforcement. Steel-plate composite (SC) walls are a viable alternative to RC for protecting the infrastructure against explosive threats. SC structures consist of two steel faceplates with plain concrete core between them. The steel faceplates are …
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Monolithic beam to external column joints in reinforced concrete
… HSC [1]. However, there are concerns about the shear behaviour of HSC beams and BCJ used in the construction of these buildings. HSC beams have equal or less shear resistance compared to normal strength concrete (NSC) beams [2], and the brittleness of HSC material could be unsuitable for BCJ as …
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