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Minimally Invasive Retrofitting of RC Joints with Externally Applied SMA Plate—Adaptive Design Optimisation through Probabilistic Damage Simulation

Author

Listed:
  • Mohammad Amin Molod

    (Faculty of Architecture and Civil Engineering, TU Dortmund University, 44227 Dortmund, Germany
    Department of Civil Engineering, Faculty of Engineering, Soran University, Diana 44008, Iraq)

  • Franz-Joseph Barthold

    (Faculty of Architecture and Civil Engineering, TU Dortmund University, 44227 Dortmund, Germany)

  • Panagiotis Spyridis

    (Faculty of Architecture and Civil Engineering, TU Dortmund University, 44227 Dortmund, Germany)

Abstract

Beam–column joints are the critical section of many reinforced concrete (RC) structure types in which any failure could lead to the collapse of the entire structure. This paper attempts to employ a superelastic shape memory alloy plate as an innovative and adaptive external strengthening element to rehabilitate existing concrete beam–column joints and enhance the structure’s performance. An experimentally investigated beam–column joint is used as the case study, and it is investigated numerically to validate the effects of an innovative strengthening technique based on shape memory alloys. The results show that the proposed technique could increase the joint’s stiffness and reduce the risk of overall failure. A particular innovation in the proposed method is associated with the novel material itself but also with the fact that the increased potential costs of using special alloys are counteracted by its potential to produce these elements in an optimised industrially produced fastened plate. This fits-all construction product further allows a rapid and minimally invasive strengthening technique. Moreover, to achieve this, the plate is adaptively designed against random critical load combinations through probabilistic damage prediction.

Suggested Citation

  • Mohammad Amin Molod & Franz-Joseph Barthold & Panagiotis Spyridis, 2023. "Minimally Invasive Retrofitting of RC Joints with Externally Applied SMA Plate—Adaptive Design Optimisation through Probabilistic Damage Simulation," Sustainability, MDPI, vol. 15(4), pages 1-25, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:4:p:3831-:d:1074330
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    References listed on IDEAS

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    1. Emmanouil Golias & Adamantis G. Zapris & Violetta K. Kytinou & George I. Kalogeropoulos & Constantin E. Chalioris & Chris G. Karayannis, 2021. "Effectiveness of the Novel Rehabilitation Method of Seismically Damaged RC Joints Using C-FRP Ropes and Comparison with Widely Applied Method Using C-FRP Sheets—Experimental Investigation," Sustainability, MDPI, vol. 13(11), pages 1-19, June.
    2. Kourosh Nasrollahzadeh & Mohammad Amin Hariri-Ardebili & Houman Kiani & Golsa Mahdavi, 2022. "An Integrated Sensitivity and Uncertainty Quantification of Fragility Functions in RC Frames," Sustainability, MDPI, vol. 14(20), pages 1-34, October.
    3. Alexander-Dimitrios Tsonos & George Kalogeropoulos, 2021. "Analytical Model for the Design of HSFC and UHSFC Jackets with Various Steel Fiber Volume Fraction Ratios for the Retrofitting of RC Beam-Column Joints," Sustainability, MDPI, vol. 13(20), pages 1-19, October.
    4. Xin Liu & Zhou-Dao Lu & Ling-Zhi Li, 2018. "The Use of Bolted Side Plates for Shear Strengthening of RC Beams: A Review," Sustainability, MDPI, vol. 10(12), pages 1-15, December.
    5. Miryam Naddaf, 2023. "Turkey–Syria earthquake: what scientists know," Nature, Nature, vol. 614(7948), pages 398-399, February.
    6. Emad Abraik & Maged A. Youssef & Salah F. El-Fitiany, 2022. "Seismic Performance of Hybrid Corrosion-Free Self-Centering Concrete Shear Walls," Sustainability, MDPI, vol. 14(2), pages 1-24, January.
    7. Maria Bostenaru Dan, 2018. "Decision Making Based on Benefit-Costs Analysis: Costs of Preventive Retrofit versus Costs of Repair after Earthquake Hazards," Sustainability, MDPI, vol. 10(5), pages 1-26, May.
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