Case study of shear strengthening of RC Corbels by steel plates using fea

Authors

DOI:

https://doi.org/10.15587/1729-4061.2023.277609

Keywords:

Nonlinear finite element, RC Corbel, steel plate, deflection, energy absorption, cracking, shear strength, parametric study

Abstract

The study aimed to explore the possibility of strengthening RC corbels with many strengthening techniques. The research analyzed the RC corbels behavior under a wide range of variables. The theoretical study consisted of twelve models reinforced with GFRP bars with strengthening by steel plate. Finite element analysis with ANSYS APDL was used to verify five specimens. This research deals with a static nonlinear FE simulation to investigate the behavior of RC Corbels reinforced internally and externally. The verification with experimental work demonstrated a satisfactory agreement in the load-displacement relationship, ultimate load and displacement, and failure mode. The parametric study was implemented which included strengthening the four concrete corbels externally and four corbels internally by a steel plate in many configurations while the remaining three were modeled with varied compressive strength (30, 40, and 50) MPa. The external strengthening included the placing of steel plate externally around the corbel in a U-shaped form and partial strengthening by strips and bottom plate. The models with internal strengthening involved placing the steel plate internally instead of stirrups. The results discovered that the strengthening provided enrichments in the stiffness, ductility, and energy absorption by 37 %, 4 %, and 26 %. In addition, in the case of full external strengthening more than internal retrofitting, there is a maximum improvement in the cracking and ultimate load carrying capacity. The external strengthening was better than internal one due to the confinement effect of the concrete. The stress distribution and crack pattern were affected by the strengthening techniques and more cracks appeared in the corbels with external steel plates.

Author Biographies

Doaa Talib Hashim, Northern Technical University

Doctor of Structural and Construction Engineering, Lecturer

Department of Building & Construction Technology Engineering

Engineering Technical College

Ali Wathiq Abdulghani, Southern Technical University

Master of Structural Engineering, Assistant Lecturer

Department of Building & Construction Technology Engineering

Engineering Technical College of Missan

Hasan Mohammed Ahmed Albegmprli, Northern Technical University

Doctor of Structural and Construction Engineering, Lecturer

Department of Building & Construction Technology Engineering

Engineering Technical College

References

  1. Hashim, D. T., Hejazi, F., Jaafar, M. S. (2018). Investigation of Infill Wall Effect on Inelastic Response of Structures. Lecture Notes in Civil Engineering, 503–527. doi: https://doi.org/10.1007/978-981-10-8016-6_41
  2. Talib Hashim, D., Hejazi, F., Jaafar, M. S., Yen Lai, V. (2019). The Performance Evaluation of Circular Flange Bolted Connection in Ultra High Performance Fiber Reinforced Concrete Segmented Communication Tower. Periodica Polytechnica Civil Engineering. doi: https://doi.org/10.3311/ppci.12697
  3. Hashim, D. T., Hejazi, F., Lei, V. Y. (2020). Simplified Constitutive and Damage Plasticity Models for UHPFRC with Different Types of Fiber. International Journal of Concrete Structures and Materials, 14 (1). doi: https://doi.org/10.1186/s40069-020-00418-9
  4. Sulaiman, E., Khudair, J. (2019). Experimental study on the behavior and strength of reinforced concrete corbels cast with self-compacting concrete incorporating recycled concrete as coarse aggregate. IJCIET, 10 (1), 188–201. Available at: https://sdbindex.com/Entry/both/17023
  5. Hassan, A., Ellithy, M., El-Shafiey, T. F. (2022). Upgrading the shear strength of reinforced concrete corbels using strain hardening cementitious composites. Engineering Structures, 273, 115047. doi: https://doi.org/10.1016/j.engstruct.2022.115047
  6. Abdul-Razzaq, K. S., Dawood, A. A., Mohammed, A. H. (2019). A Review of Previous Studies on the Reinforced Concrete Corbels. IOP Conference Series: Materials Science and Engineering, 518 (2), 022057. doi: https://doi.org/10.1088/1757-899x/518/2/022057
  7. Al-Kamaki, Y. S. S., Hassan, G. B., Alsofi, G. (2018). Experimental study of the behaviour of RC corbels strengthened with CFRP sheets. Case Studies in Construction Materials, 9, e00181. doi: https://doi.org/10.1016/j.cscm.2018.e00181
  8. Md Zin, N., Al-Fakih, A., Nikbakht, E., Teo, W., Anwar Gad, M. (2019). Influence of Secondary Reinforcement on Behaviour of Corbels with Various Types of High-Performance Fiber-Reinforced Cementitious Composites. Materials, 12 (24), 4159. doi: https://doi.org/10.3390/ma12244159
  9. Campione, G. (2009). Flexural response of FRC corbels. Cement and Concrete Composites, 31 (3), 204–210. doi: https://doi.org/10.1016/j.cemconcomp.2009.01.006
  10. El-Maaddawy, T. A., Sherif, E.-S. I. (2014). Response of Concrete Corbels Reinforced with Internal Steel Rebars and External Composite Sheets: Experimental Testing and Finite Element Modeling. Journal of Composites for Construction, 18 (1). doi: https://doi.org/10.1061/(asce)cc.1943-5614.0000403
  11. Abbu, M. A. N., Hashim, D. T., Albegmprli, H. M. A., Mezaal, M. R. (2023). Fatigue determination of the kenaf/PLA composite structure using fatigue specimen (ASTM D7791): a computational analysis. Eastern-European Journal of Enterprise Technologies, 1 (7 (121)), 14–20. doi: https://doi.org/10.15587/1729-4061.2023.273974
  12. Campione, G., La Mendola, L., Mangiavillano, M. L. (2007). Steel Fiber-Reinforced Concrete Corbels: Experimental Behavior and Shear Strength Prediction. ACI Structural Journal, 104 (5). doi: https://doi.org/10.14359/18859
  13. Fattuhim, N. I., Hughes, B. P. (1989). Ductility of Reinforced Concrete Corbels Containing Either Steel Fibers or Stirrups. ACI Structural Journal, 86 (6). doi: https://doi.org/10.14359/2660
  14. Fattuhi, N. I. (1994). Reinforced corbels made with plain and fibrous concretes. ACI Structural Journal, 91 (5). doi: https://doi.org/10.14359/4166
  15. Carolin, A., Täljsten, B. (2005). Experimental Study of Strengthening for Increased Shear Bearing Capacity. Journal of Composites for Construction, 9 (6), 488–496. doi: https://doi.org/10.1061/(asce)1090-0268(2005)9:6(488)
  16. Bousselham, A., Chaallal, O. (2006). Effect of transverse steel and shear span on the performance of RC beams strengthened in shear with CFRP. Composites Part B: Engineering, 37 (1), 37–46. doi: https://doi.org/10.1016/j.compositesb.2005.05.012
  17. Nagrodzka-Godycka, K. (1999). Behavior of Corbels with External Prestressing Bars – Experimental Study. ACI Structural Journal, 96 (6). doi: https://doi.org/10.14359/780
  18. Lachowicz, M., Nagrodzka-Godycka, K. (2016). Experimental study of the post tensioned prestressed concrete corbels. Engineering Structures, 108, 1–11. doi: https://doi.org/10.1016/j.engstruct.2015.11.007
  19. Shakir, Q. M. (2021). Performance assessment of high strength concrete two-sided corbels with embedded stiffened web-rolled steel. Structures, 32, 1469–1480. doi: https://doi.org/10.1016/j.istruc.2021.03.098
  20. Heidayet, A., Ramadhan, A., Qarani, O. (2004). Repairing of Damaged Reinforced Concrete Corbels Strengthened by Externally Bonded Steel Plates. Zanco J. Pure Appl. Sci., 16 (1).
  21. Abu-Obaida, A., El-Ariss, B., El-Maaddawy, T. (2018). Behavior of Short-Span Concrete Members Internally Reinforced with Glass Fiber–Reinforced Polymer Bars. Journal of Composites for Construction, 22 (5). doi: https://doi.org/10.1061/(asce)cc.1943-5614.0000877
  22. Kachlakev, D., Miller, T., Yim, S., Chansawat, K., Potisuk, T. (2001). Finite element modeling of reinforced concrete structures strengthened with frp laminates. Report SPR 316. Available at: https://www.oregon.gov/odot/Programs/ResearchDocuments/FiniteElementModeling.pdf
Case study of shear strengthening of RC Corbels by steel plates using fea

Downloads

Published

2023-04-30

How to Cite

Hashim, D. T., Abdulghani, A. W., & Albegmprli, H. M. A. (2023). Case study of shear strengthening of RC Corbels by steel plates using fea. Eastern-European Journal of Enterprise Technologies, 2(7 (122), 50–60. https://doi.org/10.15587/1729-4061.2023.277609

Issue

Vol. 2 No. 7 (122) (2023): Applied mechanics

Section

Applied mechanics

License

Copyright (c) 2023 Duaa Talib Hashim, Ali Wathiq Abdulaghani, Hasan Mohammed Ahmed Albegmprli

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

The consolidation and conditions for the transfer of copyright (identification of authorship) is carried out in the License Agreement. In particular, the authors reserve the right to the authorship of their manuscript and transfer the first publication of this work to the journal under the terms of the Creative Commons CC BY license. At the same time, they have the right to conclude on their own additional agreements concerning the non-exclusive distribution of the work in the form in which it was published by this journal, but provided that the link to the first publication of the article in this journal is preserved.

A license agreement is a document in which the author warrants that he/she owns all copyright for the work (manuscript, article, etc.).
The authors, signing the License Agreement with TECHNOLOGY CENTER PC, have all rights to the further use of their work, provided that they link to our edition in which the work was published.
According to the terms of the License Agreement, the Publisher TECHNOLOGY CENTER PC does not take away your copyrights and receives permission from the authors to use and dissemination of the publication through the world's scientific resources (own electronic resources, scientometric databases, repositories, libraries, etc.).
In the absence of a signed License Agreement or in the absence of this agreement of identifiers allowing to identify the identity of the author, the editors have no right to work with the manuscript.
It is important to remember that there is another type of agreement between authors and publishers – when copyright is transferred from the authors to the publisher. In this case, the authors lose ownership of their work and may not use it in any way.