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: Applying Prestressed CFRP Sheets to Restore Prestress Losses in Prestressed Concrete Beams
Author(s): Y.J. Kim, C. Shi, L. Bizindavyi, and M.F. Green
Publication: Special Publication
Appears on pages(s): 105-122
Keywords: carbon fiber-reinforced polymer (CFRP) sheet; damage; finite element analysis; prestressed concrete beam; strengthening
Abstract:The issue of the rehabilitation of damaged structures has attracted the attention of researchers to resolve undesired problems caused by increased traffic loads, corrosion, or impact damage. Appropriate methods are therefore essential for extending the lifespan of the structures. The application of carbon fiber reinforced polymer (CFRP) sheets has been reported as a promising and viable solution with many advantages such as increased flexural strength, and improved serviceability and durability. CFRP sheets may be used more efficiently by applying prestress. For this effective strengthening application, the method of prestressing CFRP sheets and its feasibility are important parameters that need further investigation. In this study, the applicability of a prestressing system is investigated on large-scale prestressed concrete beams (3.3 m span) tested under static loading. Nonlinear finite element analysis is conducted to predict the behavior of tested beams, including a parametric study to investigate the contribution of different prestress levels in the CFRP sheets to the flexural behavior of strengthened beams.
Click here to become an online Journal subscriber