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Showing 1 to 20 of 26 for “"RC Beam"”.
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Low velocity impact response of rc beam with artificial polyethylene aggregate as concrete block infill
… A new lightweight composite reinforced concrete section was developed with a novel use of a lightweight concrete block as infill utilizing Artificial Polyethylene Aggregate (APEA and MAPEA). The concrete near the neutral axis acts as a stress transfer medium between the compression …
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The fatigue performance assessment of corrosion damaged RC beams, patch repaired and externally strengthened using CFRP
… the fatigue performance of Carbon Fiber Reinforced Polymers (CFRP) which were externally bonded onto concrete beams as a repair and strengthening technique for internally corrosion damaged RC beams. It was identified that more research concerning the fatigue performance of externally bonded …
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Retrofit of Reinforced Concrete Beams using Externally Bonded and Unbonded Fiber Metal Laminate
This research investigates the flexural behavior of reinforced concrete (RC) beams retrofitted with fiber metal laminate (FML), an advanced hybrid material composed of alternating layers of metal and fiber-reinforced polymer (FRP) composites bonded through a thermoplastic or thermoset polymeric …
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SIGNIFICANCE OF U-WRAP FRP SHEAR STRENGTHENING ON FLEXURAL BEHAVIOR OF RC BEAMS STRENGTHENED USING NEAR SURFACE MOUNTED FRP BARS
… of Near Surface Mounted (NSM) Fiber Reinforced Polymers (FRP) strengthened Reinforced Concrete (RC) beams. It is well-known that the performance of NSM-FRP technique is strongly dependent on bond performance between adhesive-concrete and adhesive-FRP interface. Although a full development …
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Analysing method for acoustic emission clustering system on reinforced concrete beam
… the different types of damage occurring in reinforced concrete (RC) beam. In spite of these advantages, difficulties still exist in using the AE technique for monitoring applications particularly in analysing recorded AE data due to the large quantity of data involved. Other than that, the main …
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Nonlinear Cyclic Truss Model for Beam-Column Joints of Non-ductile RC Frames
Reinforced concrete (RC) moment frames comprise a significant portion of the built environment in areas with seismic hazards. The beam-to-column joints of these frames are key components that have a significant impact on the structure's behavior. Modern detailing provides sufficient strength within …
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Joint Shear Behavior of Reinforced Concrete Beam-Column Connections Subjected to Seismic Lateral Loading
An extensive experimental RC beam-column connection database (of 341 subassemblies in total) was constructed. RC joint shear behavior (joint shear stress v. joint shear strain) was described as an envelope curve by connecting key points displaying the most distinctive stiffness changes. At the …
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Nonlinear Finite Element Analysis of FRP Strengthened RC Beams under Static and Cyclic Loads
Fibre reinforced Polymers (FRPs) are being used increasingly in enhancing reinforced concrete structures in civil constructions due to their superior characteristics. A large number of experimental and numerical studies have been carried out on FRP strengthened RC beams in recent decades. However, …
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Experimental and theoretical evaluation of progressive collapse capacity of reinforced concrete framed structures
… An experimental program comprising eight reinforced concrete (RC) beam-column sub-assemblages is presented to investigate the structural behaviour and progressive collapse resistance of RC frame members subjected to column removal scenario (CRS). The specimens were tested under quasi-static …
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Behavior of RC beams patch repaired and strengthened with FRP composites : a numerical study
Reinforced concrete (RC) beams get deteriorated and become deficient mainly due to corrosion of steel reinforcements, poor maintenance and design, earthquakes and aging. Patch repair and structural strengthening using fiber reinforced polymers (FRP) have been increasingly adopted all over the world …
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Analytical behaviour of FRP strengthened reinforced concrete beams under low velocity impact load incorporating rate dependant material constitutive models
Since the 1980s, the use of fibre reinforced polymer (FRP) composites in strengthening and rehabilitation of existing reinforced and pre-stressed structures has gained popularity. Versatility, high strength to weight ratio, corrosion resistance, excellent creep and fatigue behaviour, and ease of …
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Analytical modeling of hybrid composite beams
… The model developed for a simply supported beam on moment capacity, stiffness, and deflection can be generalized to deal with any type of material combination. The dependence of moment capacity of the hybrid beam on the thickness of the composite sheet was investigated. The inherent property …
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Structural Behaviour of Self Consolidating Steel Fiber Reinforced Concrete Beams
… 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 sufficient …
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A Machine Learning and Computer Vision Framework for Damage Characterization and Structural Behavior Prediction
… (e.g., shear and moment) and damage states in RC beams, slabs, and panels based on surface crack pattern images. The predictive models have been generated and tested using image data sets obtained from earlier published studies, which together provide about 1,500 crack pattern images captured …
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Flexural performance of textile fine grained mortar containing risk husk ash as a partial cement replacement in reinforced concrete beams
External strengthening of RC beam become a popular method to reduce deterioration. Due to highest demanding on external strengthening, a new innovation was introduced called as textile fine grained mortar (TFGM). TFGM is a composite material which is combined fine grained mortar (FGM) that utilized …
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Effects of moisture on debonding in FRP-retrofitted concrete systems
FRP (fiber reinforced polymer) retrofit systems for reinforced concrete (RC) structures have been widely used in the past 10 years, and numerous studies on its short-term debonding behavior have been conducted extensively. Nevertheless, long-term performance and durability issues regarding such …
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Textile fine grined mortar containing palm oil fuel ash as a partial cement replacement for flexural strengthening on reinforced concrete beams
Reinforced concrete (RC) beams represents a large percentage of the structure in buildings. As the beams structures known as bending elements, thus most of the structures are often exposed to bending loads, which can affect in serious deteriorations such as concrete cracking and spalling. Due to …
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Behaviour of FRP strengthened RC Beams with concrete patch repairs subjected to impact loading
… performance levels and serviceability of reinforced concrete (RC) structures are always the priorities of asset managers, engineers and researchers in any country. RC structures in service may fail to adequately perform due to changes in functionality, corrosion attack on the reinforcing bars, …
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Damage classification in reinforced concrete beam by acoustic emission signal analysis
… by rapid release of energy from localised sources with a material, such as crack initiation and growth. High sensitivity to crack growth, the ability to locate source, passive nature and the possibility to perform real time monitoring are some of the attractive features of AE technique. In …
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Ductility and deformability of FRP strengthened reinforced concrete structures
… sudden collapse.<br/><br/>In this research the investigation is based on Fibre Reinforced Polymer (FRP) strengthened reinforced concrete beams and slabs, with particular attention to the ductility of strengthened elements and their failure modes. A total of twenty beams and nine slabs …
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