CFRP-reinforced circular steel tubes with cutout under axial loading

Amin Nabati, Tohid Ghanbari-Ghazijahani*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


This paper experimentally and numerically investigates the effect of strengthening circular steel tubes with cutout using Carbon Fibre Reinforced Polymer (CFRP) under compression. Tests were performed for unstrengthened and strengthened specimens and the results were compared to the numerical data. The numerical study was then extended through designing nine strengthening layouts with various CFRP layers and orientations and the results were compared aiming to find optimal solutions in remediation of the capacity. It was found that utilising CFRP in certain locations with specific dimensions and layers transfers the stress concentration from critical areas, hence remedies the lost capacity resulted from the presence of the cutout.

Original languageEnglish
Article number105775
Pages (from-to)1-17
Number of pages17
JournalJournal of Constructional Steel Research
Publication statusPublished - Jan 2020
Externally publishedYes


  • CFRP
  • Circular steel tubes
  • Cutout
  • Axial compression
  • Tests
  • FEA


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