Advances in materials Research

  • 제14권5호
  • /
  • Pages.367-396
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  • 2025
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  • 2234-0912(pISSN)
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  • 2234-179X(eISSN)
테크노프레스 (Techno-Press)
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Evaluations of smart self-repaired RC beams

  • Haysam S. Hassan (College of Engineering, American University of Sharjah) ;
  • Ali A. Elkhatib (Civil Engineering Department Faculty of Engineering, Assiut University) ;
  • Mohamed M. Ahmed (Civil Engineering Department Faculty of Engineering, Assiut University) ;
  • Adil K. Al-Tamimi (Civil Engineering Department Faculty of Engineering, Assiut University)
  • 투고 : 2023.06.22
  • 심사 : 2025.09.02
  • 발행 : 2025.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this research the author implemented numerous investigations employing finite element analysis (FEA) in order to address the impact of the strengthening techniques with various shear reinforcement ratios on the maximum beam's capacity and their maximum deformations. The previous experimental study by the researchers focused on the development self-restoring mode to monitor the initiated cracks and stress. The performance of RC beams has been enhanced by internally injection ducts, beams strengthened by nitinol smart bars, and beams with a combination of both. They have studied using a three-dimensional (3D) nonlinear finite element (FE) model created by ABAQUS. The FE model incorporates geometric and material nonlinearities in concrete,steel, and Nitinol reinforcement, which is confirmed by comparing beams capacities and failure modes to published literature. The influences of two parameters: (a) strengthening configuration and (b) shear reinforcement ratio are investigated in complete parametric analysis comprising 12 models. Results indicated that The Finite Element model performance is equivalent to the experimental investigation utilized as a reference. The variances in terms of ultimate load capacity did not surpass 5%. when compared to experimental data. The proportion of ACI and FEM ultimate loads varied between 72 and 101 percent. Due to the criteria of safety as prescribed by the ACI to assure conservative design, FEM and the experimental ultimate loads have higher values compared to ACI analytical values.

키워드

과제정보

Thank you, Allah for assisting me in bringing this effort to light. I am grateful to Prof. Dr. Adil Kahwash Al-Tamimi, Civil Eng. Dept. College of Engineering Department, American University of Sharjah; UAE, and the laboratory crew for the helping, advising, and permitting to execute all experimental studies in the AUS laboratory with huge support process flow up to achieve the goal. I am grateful to Prof. Dr. Ali Elkhatib and Prof. Dr. Mohammed Mahmoud who supported the research proposal, deserve special thanks.

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