Advances in concrete construction

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Procedure for the correct placement of Long-Thread Short-Thread couplers in mechanical connections of reinforcing bars

  • Enrique Hernandez-Montes (School of Civil Engineers, University of Granada) ;
  • Fouzia Larbi-Chaht (Material's Laboratory (LABMAT), Department of Civil Engineering, National Polytechnic School of Oran (ENPO)) ;
  • Mohamed Mouli (Material's Laboratory (LABMAT), Department of Civil Engineering, National Polytechnic School of Oran (ENPO)) ;
  • Lahouari Mammar (Civil Engineering Department, USTOran) ;
  • Sadek Mahdjouba (Civil Engineering Department, USTOran) ;
  • Ahmed M. Mohamed (Material's Laboratory (LABMAT), Department of Civil Engineering, National Polytechnic School of Oran (ENPO)) ;
  • Abdelkader Medjahed (Material's Laboratory (LABMAT), Department of Civil Engineering, National Polytechnic School of Oran (ENPO)) ;
  • Ahmed Messaoud-Djebara (Material's Laboratory (LABMAT), Department of Civil Engineering, National Polytechnic School of Oran (ENPO)) ;
  • Luisa Maria Gil-Martin (School of Civil Engineers, University of Granada)
  • Received : 2021.03.03
  • Accepted : 2023.09.22
  • Published : 2023.08.25
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Abstract

The present work provides a new solution to both the correct execution and quality control of straight thread couplers for reinforcing bars under monotonic loading conditions. A random survey on already constructed couplers together with a new mechanical model, adjusted with an experimental campaign, led us to present this new procedure in reinforced concrete construction. Formulation and methodology for a correct placement of straight thread couplers is presented.

Keywords

Acknowledgement

The authors would like to acknowledge ERSI Group for their support during the development of the project, and the financial support provided to the Atarcher project by the Spanish governmental institution CDTI (Centro para el Desarrollo Tecnologico Industrial) and by Directorate-General of Scientific Research and Technological Development (DGRSDT) of Algeria. The authors would also like to thank the engineer Dehamchia Loubna of ATA enterprise for her time and helpfulness in the development of the project.

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