Abstract
This paper presents the non-linear finite element method to study the behavior of four reinforced rectangular concrete MD beams with web circular openings tested under two-point load. The numerical finite elements methods have been used in a much more practical way to achieve approximate solutions for more complex problems. The ABAQUS /CAE is chosen to explore the behavior of MD beams. This paper also studies, the effect of both size and shape of the circular apertures of MD beams. The strengthening technique that used in this paper is externally strengthening using CFRP around the opening in the MD beams. The numerical results were compared to the experimental results in terms of ultimate load failure and displacement. The FE results showed a good agreement with experimental results.
Highlights
The RCMD become important in the building materials and widely used in engineering structures
The efforts of many researchers who studied the behavior of beams with opening strengthened with Carbon fiber reinforced polymer (CFRP) material
Senthil2018 ) study the behavior of six concrete deep beam that opening subjected to static monotonic loading by using finite element program ABAQUS/CAE in addition to that, seventeen beams were simulated under static loading with different shape, size and location opening of deep beam and the result show that the deep beam which having a circle opening undergo lesser the deflection
Summary
The RCMD become important in the building materials and widely used in engineering structures. There are many practical problems in the RC have to be solved by modern analytical methods, either highly difficult or impossible. Problems related to the representation of the boundary conditions and load or some of the constitutive relationships of stress-strain, the method roughly approximates the unknown domain function. The efforts of many researchers who studied the behavior of beams with opening strengthened with CFRP material. Abdalla et al (Abdalla ،2003) study the behavior of RC beams with rectangular opening with shear strengthening using FRP sheets. Ali Hussein (Al-Ahmed, 2016) investigate the behavior of reinforced concrete RC deep beams strengthened with CFRP strips. Maaddawy and Sherif (Sherif ،Jun. 2009) investigated the use of FRP sheets for shear strengthening of deep concrete beams with square openings
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