In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
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.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Feedback via Email
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: Flexural Behavior and Deflection Prediction of Concrete Beams Reinforced with AFRP and CFRP Bars
Author(s): Young Hak Lee and Min Sook Kim
Publication: Special Publication
Appears on pages(s): 1-26
Keywords: AFRP bar, CFRP bar, beam, concrete compressive strength, deflection, effective moment of inertia, reinforcement ratio, serviceability
Abstract:Due to the low elastic modulus of fiber reinforced polymer (FRP) materials, concrete members reinforced with FRP bars show greater deflections than members reinforced with steel reinforcement. Deflection is an important factor to consider in the serviceability of floor members. In this study, flexural tests of both AFRP and CFRP reinforced concrete beams were performed with the reinforcement ratio and concrete compressive strength as the main parameters. The test results indicate that the flexural capacity and stiffness increase in proportion to the reinforcement ratio and compressive strength of concrete as expected. In addition, the test results are compared with deflection calculations based on existing proposed equations for the effective moment of inertia. This comparison demonstrates that the ACI 440.1R-06 (ACI Committee 440 2006) approach for FRP reinforcement underestimates deflection of AFRP reinforced concrete, while a more rational approach proposed by Bischoff (2005) is able to predict deflections reasonably well for concrete reinforced with both types of FRP reinforcement investigated (AFRP and CFRP) and for steel reinforcement.
Click here to become an online Journal subscriber