Flexural performance of hybrid GFRP-Steel reinforced concrete continuous beams

The effectiveness of textile-reinforced concrete (TRC) and steel-reinforced concrete (SRC) in the flexural performance of rectangular concrete beams was investigated in this study. To better understand TRC behaviour, large-scale concrete beams of 120 × 200 × 2600 mm were tested and analysed in this work. Cover thickness, anchoring, and various layouts were all taken into consideration to assess the performance of beams. In addition, bi-axial and uni-axial TRC beams and SRC beams were classified according to the sort and arrangement of reinforcements. The findings showed that anchoring the textiles at both ends enhanced load resistance and prevented sliding. The ultimate load of the tow type of textile reinforcement was higher, attributed to the increased bond. Variations in cover thickness also change the ultimate load and deflection, according to the findings. Consequently, in this investigation, the ideal cover thickness was determined to be 30 mm. Furthermore, for the similar area of reinforcements, the ultimate load of TRC beams was noted up to 56% higher than that of the SRC control beam, while the deflection was roughly 37% lower.

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Experimental study on flexural performance of steel-reinforced concrete slim floor beams

Advances in Structural Engineering ◽

10.1177/1369433219841917 ◽

2019 ◽

Vol 22 (11) ◽

pp. 2406-2417 ◽

Cited By ~ 1

Author(s):

Yunlong Yu ◽

Bo Wei ◽

Yong Yang ◽

Yicong Xue ◽

Hao Xue

Keyword(s):

Reinforced Concrete ◽

Failure Modes ◽

Flexural Stiffness ◽

Flexural Capacity ◽

Steel Reinforced Concrete ◽

Flexural Performance ◽

Long Span ◽

Steel Shape ◽

Floor System ◽

Bending Failure

In long-span floors, the use of composite slim floor beams can effectively improve the flexural stiffness and flexural capacity of the floor system. In order to strengthen the stiffness of the composite slim floor beams and achieve better fire resistance, an innovative steel-reinforced concrete slim floor beams is presented in this article. To investigate the flexural performance of the steel-reinforced concrete slim floor beams, static loading experiments were carried out on six specimens. The parameters of the test were the height of slim floor beams and the type and size of steel shape in the steel-reinforced concrete slim floor beams. On the basis of the experiment, the bending failure modes, flexural stiffness, and flexural capacity of the steel-reinforced concrete slim floor beams were studied comprehensively. The test results indicated that the steel-reinforced concrete slim floor beams exhibited great flexural capacity, large stiffness, and high ductility. The calculation formulas of flexural stiffness and flexural capacity were also proposed in this article. The analysis of flexural performance of the steel-reinforced concrete slim floor beams can provide a significant foundation for further research.

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The mathematical modelling of corrosion in hot dip galvanized steel reinforced concrete

International Review of Applied Sciences and Engineering ◽

10.1556/irase.2.2011.1.1 ◽

2011 ◽

Vol 2 (1) ◽

pp. 1-12

Author(s):

A. Hegyi ◽

H. Vermeşan ◽

V. Rus

Keyword(s):

Mathematical Model ◽

Reinforced Concrete ◽

Numerical Model ◽

Equation System ◽

Galvanized Steel ◽

Steel Reinforced Concrete ◽

Numeric Model ◽

Physical And Mathematical Models ◽

Physical Phenomena ◽

The Mathematical Model

Abstract In this paper we wish to present the numerical model elaborated in order to simulate some physical phenomena that influence the general deterioration of steel, whether hot dip galvanized or not, in reinforced concrete. We describe the physical and mathematical models, establishing the corresponding equation system, the initial and boundary conditions. We have also presented the numeric model associated to the mathematical model and the numeric methods of discretization and solution of the differential equations system that describes the mathematical model.

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Flexural Performance of Reinforced Concrete Built-up Beams with SIFCON

Engineering and Technology Journal ◽

10.30684/etj.v38i5a.501 ◽

2020 ◽

Vol 38 (5A) ◽

pp. 669-680

Author(s):

Ghazwan K. Mohammed ◽

Kaiss F. Sarsam ◽

Ikbal N. Gorgis

Keyword(s):

Reinforced Concrete ◽

Ultimate Load ◽

Concrete Beams ◽

Steel Fibers ◽

Reinforced Concrete Beams ◽

Load Carrying Capacity ◽

Conventional Concrete ◽

Flexural Performance ◽

Load Carrying ◽

Fiber Concrete

The study deals with the effect of using Slurry infiltrated fiber concrete (SIFCON) with the reinforced concrete beams to explore its enhancement to the flexural capacity. The experimental work consists of the casting of six beams, two beams were fully cast by conventional concrete (CC) and SIFCON, as references. While the remaining was made by contributing a layer of SIFCON diverse in-depth and position, towards complete the overall depths of the built-up beam with conventional concrete CC. Also, an investigation was done through the control specimens testing about the mechanical properties of SIFCON. The results showed a stiffer behavior with a significant increase in load-carrying capacity when SIFCON used in tension zones. Otherwise high ductility and energy dissipation appeared when SIFCON placed in compression zones with a slight increment in ultimate load. The high volumetric ratio of steel fibers enabled SIFCON to magnificent tensile properties.

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