Publication detail

Analysis of stiffness and flexural strength of a reinforced concrete beam using an invented reinforcement system

NARIMAN, N. HUŠEK, M. MOHAMMAD, I. AHMED, K. DILSHAD, D. KHIDR, I.

Original Title

Analysis of stiffness and flexural strength of a reinforced concrete beam using an invented reinforcement system

Type

journal article in Web of Science

Language

English

Original Abstract

In this study, we conducted experimental tests on two specimens of reinforced concrete beams using a three-point bending test to optimize the flexure and stiffness designs. The first specimen is a reinforced concrete beam with an ordinary reinforcement, and the second specimen has an invented reinforcement system that consists of an ordinary reinforcement in addition to three additional bracings using steel bars and steel plates. The results of the flexure test were collected and analyzed, and the flexural strength, the rate of damage during bending, and the stiffness were determined. Finite element modeling was applied for both specimens using the LS-DYNA program, and the simulation results of the flexure test for the same outputs were determined. The results of the experimental tests showed that the flexural strength of the invented reinforcement system was significantly enhanced by 15.5% compared to the ordinary system. Moreover, the flexural cracks decreased to a significant extent, manifesting extremely small and narrow cracks in the flexure spread along the bottom face of the concrete. In addition, the maximum deflection for the invented reinforced concrete beam decreased to 1/3 compared to that of an ordinary reinforced concrete beam. The results were verified through numerical simulations, which demonstrated excellent similarities between the flexural failure and the stiffness of the beam. The invented reinforcement system exhibited a high capability in boosting the flexure design and stiffness.

Keywords

three-point flexure test, softening stage, flexural crack, flexural strain

Authors

NARIMAN, N.; HUŠEK, M.; MOHAMMAD, I.; AHMED, K.; DILSHAD, D.; KHIDR, I.

Released

29. 4. 2021

Publisher

Springer

ISBN

2095-2449

Periodical

Frontiers of Structural and Civil Engineering

Year of study

15

Number

2

State

People's Republic of China

Pages from

378

Pages to

389

Pages count

12

URL

https://link.springer.com/article/10.1007/s11709-021-0706-z

BibTex

@article{BUT176251,
  author="Nazim Abdul {Nariman} and Martin {Hušek} and Ilham Ibrahim {Mohammad} and Kaywan Othman {Ahmed} and Diyako {Dilshad} and Ibrahim {Khidr}",
  title="Analysis of stiffness and flexural strength of a reinforced concrete beam using an invented reinforcement system",
  journal="Frontiers of Structural and Civil Engineering",
  year="2021",
  volume="15",
  number="2",
  pages="378--389",
  doi="10.1007/s11709-021-0706-z",
  issn="2095-2449",
  url="https://link.springer.com/article/10.1007/s11709-021-0706-z"
}