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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
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.
Title: Repair and Strengthening of Reinforced Concrete Beam-Column Joints: State of the Art
Author(s): Murat Engindeniz, Lawrence F. Kahn, and Abdul-Hamid Zureick
Publication: Structural Journal
Appears on pages(s): 187-197
Keywords: beam-column joints; fiber-reinforced polymer; reinforced concrete; repair
Abstract:The latest report by Joint ACI-ASCE Committee 352 (ACI 352R-02) states that joints in structures built before the development of current design guidelines need to be studied in detail to establish their adequacy and that methods of connection repair and strengthening need to be developed. Prior to developing new strengthening schemes, it is important that the findings from research previously conducted on other strengthening techniques be known. This paper presents a comprehensive up-to-date literature search pertaining to the performance of, as well as to the repair and strengthening techniques for, nonseismically designed reinforced concrete beam-column joints, reported between 1975 and 2003. These techniques included: 1) epoxy repair; 2) removal and replacement; 3) concrete jacketing; 4) concrete masonry unit jacketing; 5) steel jacketing and addition of external steel elements; and 6) strengthening with fiber-reinforced polymeric (FRP) composite applications. Each method of repair or strengthening is reviewed with emphasis on its application details, required labor, range of applicability, and performance. Relative advantages and disadvantages of each method are discussed.
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