• The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal


Title: Retrofit of Reinforced Concrete Bridges with Carbon Fiber Reinforced Polymer Composites

Author(s): C. P. Pantelides, J. Gergely, L. D. Reaveley, and V. A. Volnyy

Publication: Symposium Paper

Volume: 188


Appears on pages(s): 441-454

Keywords: bridges; carbon fiber reinforced polymers; composites; design; earthquakes; joints; reinforced concrete; seismic retrofit

Date: 8/1/1999

In-situ lateral load tests of reinforced concrete bridge bents were conducted to determine the strength and ductility of existing and retrofitted bents with Carbon Fiber Reinforced Polymer (CFRP) composites. The CFRP composite retrofit included three columns, the cap beam and the three cap beam-column joints. Existing design guidelines were used for retrofit of the columns with CFRP composites. New design guidelines were developed for retrofit of cap beam-column joints. The design of the CFRP composite retrofit was based on doubling the displacement ductility of the bent. The CFRP composite was able to strengthen the cap beam-column joints effectively for an increase in shear stresses of 35 percent. The bent retrofitted with the CFRP composite reached a system displacement ductility of 6.3 as compared to the bent in the as-is condition, which reached a ductility of 2.8. The peak lateral load capacity was increased by 16 percent.


Please enter this 5 digit unlock code on the web page.