Reinforcement of corroded steel structures with CFRP panels
Paper
Paper/Presentation Title | Reinforcement of corroded steel structures with CFRP panels |
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Presentation Type | Paper |
Authors | Cardona, Francisco (Author), Tawfik, Qaidar H. (Author) and Karunasena, Karu (Author) |
Journal or Proceedings Title | Proceedings of the 2012 International Conference on Architectural and Civil Engineering (ICACE 2012) |
Number of Pages | 10 |
Year | 2012 |
Place of Publication | Canakkale, Turkey |
Web Address (URL) of Paper | https://www.waset.org/conferences/2012/bali/icace/ |
Conference/Event | ICACE 2012: International Conference on Architectural and Civil Engineering |
Event Details | ICACE 2012: International Conference on Architectural and Civil Engineering Event Date 24 to end of 25 Oct 2012 Event Location Bali, Indonesia |
Abstract | Carbon Fibre Reinforced Polymer composites are a proven method of providing structural strengthening that is lighter, non-corrosive, and less labour intensive than the application of steel plate or exterior post-tensioning. Corrosion of steel structures in bridges and other civil engineering applications induces a serious structural damage that could lead to the failure during operating conditions. Instead of replacing the damaged structures there is the current approach of repairing the corroded steel structures by strengthening the damaged steel beams or gridges using Carbon Fibre Reinforced Polymer (CFRP). The focus in this work is on tension angle members in truss type of steel structures. The loss of sectional area due to corrosion effect was represented by creating notches of different sizes (3 mm – 12 mm) in the angles. The results revealed that CFRP reinforcement is able to rehabilitate the corroded steel to the point that the tensile strength reached a value within 20% of the original value of the undamaged steel truss for artificial notch length lower than 9 mm. The effect of moisture on the corroded and rehabilitated steel structures was also investigated and the results revealed a decrease of 7% in the ultimate tensile strength of the steel truss after 2000 hours of continue immersion in water. |
Keywords | CFRP composites; corrosion of steel; tensile strength; moisture effect |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
401602. Composite and hybrid materials | |
401609. Polymers and plastics | |
Public Notes | Author retains copyright |
Byline Affiliations | Centre of Excellence in Engineered Fibre Composites |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q1w44/reinforcement-of-corroded-steel-structures-with-cfrp-panels
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