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Behavior of RC Beam–Column Joints Strengthened with Modified Reinforcement Techniques

Author

Listed:
  • Aditya Kumar Tiwary

    (Civil Engineering Department, Chandigarh University, Mohali 140413, Punjab, India)

  • Sandeep Singh

    (Civil Engineering Department, Chandigarh University, Mohali 140413, Punjab, India)

  • Jasgurpreet Singh Chohan

    (Mechanical Engineering Department, Chandigarh University, Mohali 140413, Punjab, India)

  • Raman Kumar

    (Mechanical Engineering Department, Chandigarh University, Mohali 140413, Punjab, India)

  • Shubham Sharma

    (Department of Mechanical Engineering, IK Gujral Punjab Technical University, Main Campus-Kapurthala, Kapurthala 144603, Punjab, India)

  • Somnath Chattopadhyaya

    (Department of Mechanical Engineering, Indian Institute of Technology (ISM), Dhanbad 826004, Jharkhand, India)

  • Farid Abed

    (Department of Civil Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates)

  • Mislav Stepinac

    (Faculty of Civil Engineering, University of Zagreb, 10000 Zagreb, Croatia)

Abstract

Using a significant number of transverse hoops in the joint’s core is one recognized way for achieving the requirements of strength, stiffness, and ductility under dynamic loading in a column joint. The shear capacity of a joint is influenced by the concrete’s compressive strength, the anchoring of longitudinal beam reinforcement, the number of stirrups in the joint, and the junction’s aspect ratio. Seismic motion on the beam may produce shear capacity and bond breaking in the joint, causing the joint to fracture. Furthermore, due to inadequate joint design and details, the entire structure is jeopardized. In this study, the specimens were divided into two groups for corner and interior beam–column joints based on the joint reinforcement detailing. The controlled specimen has joint detailing as per IS 456:2000, and the strengthened specimen has additional diagonal cross bars (modified reinforcement technique) at the joints detailed as per IS 456:200. The displacement time history curve, load-displacement response curves, load-displacement hysteretic curve, and load cycle vs. shear stress were used to compare the results of the controlled and strengthened specimens. The findings show that adding diagonal cross bars (modified reinforcing techniques) to beam–column joints exposed to cyclic loads enhances their performance. The inclusion of a diagonal cross bar increased the stiffness of the joint by giving an additional mechanism for shear transfer and ductility, as well as greater strength with minimum cracks.

Suggested Citation

  • Aditya Kumar Tiwary & Sandeep Singh & Jasgurpreet Singh Chohan & Raman Kumar & Shubham Sharma & Somnath Chattopadhyaya & Farid Abed & Mislav Stepinac, 2022. "Behavior of RC Beam–Column Joints Strengthened with Modified Reinforcement Techniques," Sustainability, MDPI, vol. 14(3), pages 1-19, February.
  • Handle: RePEc:gam:jsusta:v:14:y:2022:i:3:p:1918-:d:744356
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    References listed on IDEAS

    as
    1. Xing-yan Shang & Jiang-tao Yu & Ling-zhi Li & Zhou-dao Lu, 2019. "Strengthening of RC Structures by Using Engineered Cementitious Composites: A Review," Sustainability, MDPI, vol. 11(12), pages 1-18, June.
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    Cited by:

    1. M. Zardan Araby & Samsul Rizal & Abdullah & Mochammad Afifuddin & Muttaqin Hasan, 2022. "Deformation Capacity of RC Beam-Column Joints Strengthened with Ferrocement," Sustainability, MDPI, vol. 14(8), pages 1-20, April.

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