Seismic Retrofitting of Corroded Reinforced Concrete Columns Using Carbon Composites

This paper presents an experimental study on the behavior of large-scale corroded reinforced concrete columns and the feasibility of using carbon composites to restore their seismic effectiveness. Large-diameter reinforced concrete columns were corroded using external currents, repaired with different layouts of carbon composite material, and then tested to failure under lateral cyclic loading. Bond degradation due to corrosion dictated the losses in ductility and load capacities for the corroded columns. Findings showed that advanced composite materials are a viable alternative for the repair and seismic upgrading of corroded columns. Columns retrofitted with carbon composite wraps had load and ductility capacities matching or exceeding those expected for an undamaged seismically designed column. The test results also indicate that the use of external currents is a feasible way to induce corrosion in large-scale laboratory tests.

  • Availability:
  • Authors:
    • Aquino, Wilkins
    • Hawkins, Neil M
  • Publication Date: 2007-5

Language

  • English

Media Info

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Filing Info

  • Accession Number: 01051304
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 31 2007 12:59AM