Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"T-beams"”.
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A New CFRP-UHPC System for Strengthening Reinforced Concrete T-Beams
… field, strengthening of reinforced concrete beams using FRP laminates became a common repair and retrofit technique. Traditionally, Reinforced Concrete (RC) beams are strengthened by adhering FRP laminates to the tension side of the beam to work as an additional tensile reinforcement. …
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The structural exploitation of fibrous-cement composites in reinforced concrete T-beams
… in the tensile zone of reinforced concrete T-beams. The fibre reinforced cement composites, which act as 'surface reinforcement', incorporate high modulus, asbestos fibres in a predominantly two-dimensional random distribution in a cement matrix. Compared with concrete, these units have a high …
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Behaviour of continuous concrete T-beams reinforced with hybrid FRP/Steel bars
… of continuous hybrid reinforced concrete T-beams (HRCT). The investigations consist of three parts; the computational part, the experimental part and the finite element analysis. The computational part included two parts, the first one is developing an analytical programme using MATLAB …
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Experimental studies on the limit analysis of reinforced concrete fixed-ended T-beams
… are presented on tests of reinforced concrete T-beams with a flange 20 inches wide by two inches thick setting on a stem five inches deep and four inches wide. These beams were loaded at the quarter points of an eight-foot span and also at the end of cantilever sections of two feet. The beams …
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Bending behavior of concrete T-beams reinforced with glass fiber-reinforced polymer (GFRP) bars
… at first crack and at ultimate failure of T-beams.;Eight concrete T-beams with two different flange widths and two reinforcement configurations were tested under four point bending to study the factors cited above. Shear lag effect was established based on the strains measured along the width …
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Flexural Behaviour of Geopolymer Concrete T-beams Reinforced with FRP or Hybrid FRP/Steel bars
… the flexural behaviour of geopolymer concrete T-beams reinforced with GFRP or Hybrid GFRP/Steel bars. To achieve this aim, twelve geopolymer concrete flanged beams reinforced with various combinations with steel and GFRP bars were experimentally tested, and comprehensive computational finite …
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The performance assessment of patch repaired and CFRP strengthened RC T-beams under transverse impact loading
… of abnormally loaded vehicles into bridge beams is a frequent occurrence on many highways in South Africa. Structural damage due to such loading conditions requires repair and strengthening procedures that can return the structure to its original load bearing capacity. The use of patch …
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Analysis of deformation and tearing of uniformly blast-loaded circular and square plates rectangular beams and T-beams
… square mild steel plates, aluminium rectangular beams and T-beams subjected to impulsive loads. The objective of this investigation is to numerically determine the dynamic response of circular and square plates, rectangular beams and T-beams clamped and built-in (integral) at the boundary …
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A Study Of Effective Moment of Inertia Models for Full-Scale Reinforced Concrete T-Beams Subjected to a Tandem-Axle Load Configuration
… load tested full-scale reinforced concrete T-beams. The test specimens were subjected to a closely-spaced, tandem-axle load configuration, a load configuration typical of military equipment.
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Analysis and computer program for non-prismatic continuous beam and floor section
… analyzing continuous non-prismatic T-beams. Residential floor systems were treated as a series of three-span continuous T-beams. Cross-sectional area of the stem of the T-beam was doubled over interior supports and for 3 ft. on either side. Computer programs were used for calculating …
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Behavior of advanced innovative materials for improved long-term bridge performance
… part presents thermal behavior of concrete beams based on field investigation and FEA simulation. Seasonal, monthly, and daily thermal characterization of L-beam was studied based on two-year temperature data from an instrumented girder of a pedestrian bridge. The thermal behavior was …
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Cortante longitudinal em vigas de concreto com mesas comprimidas
… study about the longitudinal shear problem in beams of reinforced concrete with compression flanges. It is included a brief summary of the design methods and tests published earlier, and also the recommendations of some codes of practice related to the subject. For the experimental study five …
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The torsional analysis of beams of arbitrary cross-section with non-linear stress-strain properties
… and the torsional capacity for prismatic beams with arbitrary cross-sections subjected to pure torsional loading. The technique may be applied to any beam with isotropic, homogeneous, linear or non-linear elastic properties and a known shearing stress–shearing strain relation. The …
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The upturned concrete beam system : an investigation of structural, environmental, and constructability performance
… system. Through the use of upturned concrete T-beams, designers created a naturally ventilated workspace that employs the thermal mass of an exposed concrete ceiling. This concrete absorbs heat during the day and is purged at night by cool breezes. This study investigates the inherent structural …
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Refinement of the Inverted T-Beam Bridge System for Virginia
… any mechanical connection between adjacent beams was most efficient, and gave adequate performance under monotonic loading. The study recommended cyclic load testing be carried out on this joint type, as well as a welded joint similar to those found in decked bulb-T systems. The research …
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Shear behavior of full-scale reinforced concrete members strengthened with anchored CFRP materials
… ten tests were performed on large-scale T-beams. The beams were tested with various CFRP layouts, CFRP reinforcement ratios, and transverse steel reinforcement ratios. The test results provided invaluable information on the shear behavior of strengthened members when sufficient anchorage is …
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Investigation of Concrete Mixtures to Reduce Differential Shrinkage Cracking in Inverted T Beam System
… system consists of adjacent precast inverted T-beams finished with a cast-in-place concrete topping. The system offers enhanced performance against reflective cracking and reduces the likelihood of cracking due to time dependent effects. Differential shrinkage is believed to be one of the causes …
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CFRP as Shear and End-Zone Reinforcement for Concrete Bridge Girders
… in. deep beam, modeled after prestressed Bulb-T beams, was created with NEFMAC grid reinforcement. The beam was loaded with a single point load near the support to induce shear failure. Beams were fitted with instrumentation to capture shear cracking data. Shear capacity calculations following …
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C-Grid as Shear Reinforcement in Concrete Bridge Girders
… development length. Four 18 ft long 19 in. deep beams, modeled after prestressed Bulb-T beams, were created to test the C-Grid, as well as steel and CFCC stirrups. The beams were loaded with a single point load closer to one end to create a larger shear load for a given flexural moment. Overall …
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