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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: Performance of Double-T Prestressed Concrete Beams Strengthened with Steel Reinforced Polymer
Author(s): P. Casadei, A. Nanni, T. Alkhrdaji, and J. Thomas
Publication: Special Publication
Appears on pages(s): 763-778
Keywords: double-T beams; ductility; flexure; in-situ load test;prestressed concrete; steel reinforced polymer; strengthening
Abstract:In the fall of 2002, a two story parking garage in Bloomington, Indiana, builtwith precast prestrestressed concrete (PC) double-T beams, was decommissioned dueto a need for increased parking-space. This led to the opportunity of investigating theflexural performance of the PC double-T beams, upgraded in the positive momentregion with steel reinforced polymer (SRP) composite materials, representing the firstcase study where this material has been applied in the field. SRP makes use of high-strength steel cords embedded in an epoxy resin. This paper reports on the test resultsto failure of three beams: a control specimen, a beam strengthened with one ply of SRPand a third beam strengthened with two plies of SRP anchored at both ends with SRP U-wraps. Results showed that SRP can significantly improve both flexural capacity andenhance pseudo-ductility.
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