Vol. 23 No. 3 (2020) Cover Image
Vol. 23 No. 3 (2020)

Published: November 30, 2020

Pages: 306-312

Articles

Strut and Tie Modelling of Reinforced Concrete Deep Beams Under Static and Fixed Pulsating Loading

Ajibola Ibrahim Quadri 1
1 The Federal University of Technology, Akure
History
  • Received: April 22, 2020
  • Revised: June 29, 2020
  • Accepted: August 14, 2020
  • Available Online: November 24, 2020
DOI

https://doi.org/10.29194/NJES.23030306

Abstract

Numerical analysis of the performance of reinforced concrete (RC) deep beam subjected to static and fixed-point pulsating loading at the midpoint has been investigated. Three-dimensional nonlinear finite element model using the Strut and Tie approach was adopted. The damage level under the influence of the applied fixed pulsating loading is higher than the static applied loading, hence early crack was observed because of the stepwise loading in the form of vibration. Although the Strut and Tie approach gave a good estimation of the resistance capacity of the beam, the beam undergo high shear damage when subjected to these two types of loading. Material strength properties, applied loadings and cross-sections adopted are some of the factors that affect the performance of the deep beam.

Keywords

References

  1. Lateef, H.T., Ibrahim, A.Q., “Human Error Uncertainties for Structural Detailing in Reinforced Concrete Buildings”. Proceeding of School of Engineering and Engineering Technology FUTA. pp. 766-779. August 2108.
  2. Ajibola, Q. I. (2019). “Reliability Appraisal of Nominal Eccentricity of Short Reinforced Concrete Column Designed to BS 8110 and Eurocode (EN:2)-Ultimate Limit State on Fatigue”. Reliability Engineering and Resilience.
  3. https://doi.org/10.22115/rer.2019.197264.1013.
  4. Abdul-Razzaq, K. S., Jalil, A. M. & Jebur, S. F. Behaviour of reinforced concrete deep beams in previous studies. IOP Conf. Ser.: Mater. Sci. Eng. 518, 022065 (2019).
  5. Saleem Abdul-Razzaq, K. & Farhan Jebur, S. Suggesting alternatives for reinforced concrete deep beams by reinforcing struts and ties. MATEC Web Conf. 120, 01004 (2017).
  6. Zhi-Q.L., H., Zhao, H and Zhongguo J. M., Kim, T.H., Cheon, J.H., Shin., H.M., "Evaluation of behavior and strength of prestressed concrete deep beams using nonlinear analysis". Computers and Concrete 9, 63–79.
  7. Ritter, W., “Die bauweise hennebique (hennebiques construction method).” Schweizerische Bauzeitung (Zurich), 33(7), 59-61. 1899
  8. Mörsch, E., “Concrete Steel Construction (Der Eisenbetonbau). English Translation of the 3rd German Edition.” McGraw-Hill Book Co., New York. 1909.
  9. Leonhardt, F., "Reducting the shear reinforcement in reinforced concrete beams and slabs". Magazine Concrete Research: 17(53): p187.December 1965,
  10. Rusch, H., “Researches toward a general flexural theory for structural concrete.” Journal of ACI, 57(7), 1-27. 1960.
  11. Kupfer, H., "Erweiterung der Möhrsch’schen Fachwerkanalogie mit Hilfe des Prinzips vom Minimum der Formänderungsarbeit (Expansion of Mörsch’s truss analogy by application of the principle of minimum strain energy)". CEB Bulletin: 40: Paris. 1964.
  12. Collins M. P. and Mitchell, D. "A rational approach for shear design-The 1984 Canadian code provisions, "ACI Journal 1986, 83(6), pp 925-933. 1986.
  13. Demerdash, W. E., El-Metwally, S. E., El-Zoughiby, M. E., and Ghaleb, A. A., “Strut-And-Tie Model and 3-D Nonlinear Finite Element Analysis for The Prediction of The Behavior of RC Shallow and Deep Beams with Openings,” p. 21. 2014.
  14. Chen, W. F, and El-Metwally, S. E, "Understanding Structural Engineering from Theory to Practice". CRC Press, New York. 2011.
  15. Schlaich J., and Schafer, K., “Design and Detailing of Structural Concrete Using Strut-and- Tie Models”. The Structural Engineering., V.69, No. 6, pp 113-125. 1991.
  16. ACI Committee 318-19 Building Code Requirements for Structural Concrete and Commentary.American Concrete Institute, 2019.