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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: Closed Form Design Equations for Strengthened Concrete Beams: FRP Rupture
Author(s): N. Hatami and H.A. Rasheed
Publication: Special Publication
Appears on pages(s): 1613-1630
Keywords: concrete beams; design equations; flexural strengthening;FRP rupture
Abstract:Externally bonded FRP has been established as the technology of choice tostrengthen RC beams. Researchers and practicing engineers have recently developeddesign guidelines for FRP strengthening. However, the current state of the art flexuraldesign procedure suggests an iterative process. No earlier efforts have been devotedto develop direct strength design equations on the failure mode of FRP rupture that canfacilitate structural calculations. This study develops exact and approximate sets ofclosed form equations to design singly and doubly reinforced strengthened rectangularsections that fail by FRP rupture. Comparisons with reported experimental strength dataindicate excellent agreement. A comprehensive parametric study has yielded a simplelinear regression equation that has an almost perfect statistical correlation and isequally applicable in cases of analysis and design. Comparison between the exactsolution and the regression equation confirms the accuracy of the latter. The latter isused in a design example.
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