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Numerical simulation on the square column's strengthening characteristics utilizing the SCC jacketing

  • Ammar Tawashi (Department of Structural Engineering, Al-Baath University, Faculty of Civil Engineering) ;
  • Soleman Alamoudi (Department of Structural Engineering, Al-Baath University, Faculty of Civil Engineering) ;
  • Abdulkadir Aljundi (Department of Civil Engineering, Al-Wataniya Private University, Faculty of Engineering)
  • 투고 : 2023.07.08
  • 심사 : 2023.12.16
  • 발행 : 2023.12.25

초록

This research aims to simulate and investigate the efficiency of strengthening damaged concrete columns using concrete jacketing.The numerical program included unjacketed reference column made of ordinary RC concrete had a cross-sectional dimension of (100×100) mm and 560 mm long reinforced concrete. These cores were damaged by loading them with approximately 60% of their actual ultimate load capacities as a service load. Then, column specimens were strengthened by applying two types of self-compacting concrete SCC jacketing, which were 25 and 30 mm thick, on all four sides. Exposed to external loads at different directions vertically and horizontally simulate to the seismic load. The 3D Finite Element (FE) simulation is used to predict of three structural criteria that were selected and evaluated (deflection, stress, cracks). The results show that the failure of the strengthening columns is interesting and corresponds to the characteristics of the cracks formed in the concrete section,which was documented numerically using 3D Finite Element (FE). A significant improvement of deflection has been noted at the values at the top SECTION of columns compared to the reference sample reaching an average of up to 36.6% when using a 25 mm thick SCC-3500 jacket.

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참고문헌

  1. Altun, F., Kara, H.B., Uncoglu, E. and Karahan, O. (2003), "Earthquake damages in reinforced-concrete structures and retrofitting work on A6 storey building", Gazi Univ. J. Science. Gazi University, 16(2), 309-318.
  2. Arafa, M., Naja, M.A. and Shihada,S. (2019), "Repairing and strengthening of damaged RC columns using thin concrete jacketing", Adv. Civil Eng., 1-16. https://doi.org/10.1155/2019/2987412.
  3. BulentC elik, T. (2017), "Green concrete produced by fly ash and silica fume", Int. J. Emg. Sci. Appl., 1(2), 46-51.
  4. EFNARC (2005), "The European guidelines for self-compacting concrete: Specification, production and use", The European Guidelines for Self Compacting Concrete, (May), 68.
  5. Eid, F., Heiza, K. and Elmahroky, M. (2017), "Behavior and analysis of reinforced self-compacted concrete beam column connection subjected to fire", Am. J. Sci. Eng. Technol., 2(4), 132-140. https://doi.org/10.11648/j.ajset.20170204.15.
  6. Harkouss, R.H. and Hamad, B.S. (2015), "Performance of high strength self-compacting concrete beams under different modes of failure", Int. J. Concrete Struct. Mater., 9(1), 69-88. https://doi.org/10.1007/s40069-014-0088-x.
  7. Helles, Z.H. (2014), Strengthening of square reinforced concrete columns with fibrous ultra high performance self-compacting concrete jacketing, The Islamic University.
  8. Hemzah, S.A., Alyhya, W.S. and Hassan, B.A. (2020), "Numerical investigation for the structural behaviour of different strengthening techniques for partially-loaded square self-compacted concrete short columns", IOP Conference Series: Materials Science and Engineering. https://doi.org/10.1088/1757-899X/928/2/022143.
  9. Kaushal, P., Singh, S. and Rajpoot, A. (2022), "To analysis the strengthening of square reinforced concrete column with fibrous ultra high performance self compacting concrete jacketing", Int.J. Innov. Res. Technol., 8(11), 83-88.
  10. Mabrouk, R., Awad, M., Abdelkader, N. and Kassem, M. (2022), "Strengthening of reinforced concrete short columns using ferrocement under axial loading", J. Eng. Res., https://doi.org/10.21608/erjeng.2022.154329.1083.
  11. Mercimek, O ., Ghoroubi, R., O zdemir, A. and Ozgur, A. (2021), "Strengthening of columns with different Innovative composite materials for RC buildings without sufficient earthquake resistance", J. Polytech., [Preprint]. https://doi.org/10.2339/politeknik.836054.
  12. Mohammed, M.H. (2020), "Stress-strain behavior of normal and high strength self-compacting concrete", IOP Conference Series: Materials Science and Engineering. https://doi.org/10.1088/1757-899X/737/1/012003.
  13. Okamura, H. and Ouchi, M. (2003), "Self Compacting Concrete - research paper", J. Adv. Concrete Technol., 5-15.
  14. Patel, T., Salla, S., Vasanwala, S. and Modhera, C. ( 2022), "Strengthened of a square RC columns using BFRP and GFRP: The experimental investigations", Trends in Sciences, [Preprint]. https://doi.org/10.48048/tis.2022.5602.
  15. Syrian Arab Code Committee (2012), The design and implementation the construction by reinforced concrete, 4th Ed., Damascus: Syrian Engineers Syndicate.
  16. Tahzeeb, R., Alam, M. and Muddassir, S.M. (2023), "Strengthening of axially loaded circular RC column under close-in and contact blasts: A numerical investigation", Lecture Notes in Civil Engineering, https://doi.org/10.1007/978-981-19-1862-9_24.
  17. Tawashi, A. and Alamoudi, S. (2022a), "Study of stress-strain behavior of self-compacting concrete SCC cylindrical samples produced of local materials", J. AL Baath Univ., 44(5), 51-74. https://albaath-univ.edu.sy/journal/index.php/index/About.
  18. Tawashi, A. and Alamoudi, S. (2022b), "The mechanical behavior of self-compacting concrete SCC samples locally produce", J. Eng. Sci. Inform. Technol., 6(2), 148-169. https://doi.org/https://doi.org/10.26389/AJSRP.R080821.
  19. Tawashi, A. and Alamoudi, S. (2023), "Mathematical modeling of the self-compacting concrete samples behavior produced from the Syrian raw materials", Syrian J. Sci. Innov., 1(1), 61-71. https://journal.hcsr.gov.sy/index.php/sjsi/article/view/67.
  20. Tawashi, A., Alamoudi, S. and Salem, A. (2019), "Field and experimental study for the repair of ribbed slabs partially damaged by containing gaps", J. Hama Univ., 2(6), 33-52. https://hama-univ.edu.sy/ojs/index.php/huj/article/view/221.
  21. Tayeh, B.A., Naja, M.A., Shihada, S. and Arafa, M. (2019), "Repairing and strengthening of damaged RC columns using thin concrete jacketing", Adv. Civil Eng., [Preprint]. https://doi.org/10.1155/2019/2987412.