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
Chat with Us Online Now
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: Fatigue Resistance of Steel Fiber-Reinforced Concrete Deep Beams
Author(s): Benard Isojeh, Maria El-Zeghayar, and Frank J. Vecchio
Publication: Structural Journal
Appears on pages(s): 1215-1226
Keywords: deep beam; fatigue; steel fiber; strain evolution; strength; wind turbine foundations
Abstract:An investigation of the fatigue resistance of small-scale steel fiber-reinforced concrete deep beams with steel fiber-volume ratios of 0, 0.75, and 1.5% is reported. The behavior of steel fibers in enhancing the fatigue life of deep beams and reducing the congestion of reinforcement in concrete is studied, and the possibility of obtaining optimized structural sections that are cost-effective using steel fiber-reinforced concrete is verified. Evolutions and inclinations of average principal strains and bond strength between concrete and steel reinforcing bars within the shear spans were also observed. The use of steel fibers, especially with a volume ratio of 1.5%, was observed to reduce the progressive strain values in concrete and steel reinforcing bars, hence resulting in enhanced fatigue life. No significant evolution profile was observed for the inclination of the principal directions, while the use of adequate anchorage preserved the bond strength between concrete and steel reinforcement. In all specimens, fracture of the longitudinal reinforcing bars occurred at failure, and fiber pullout was more prevalent than fiber breakage.
Click here to become an online Journal subscriber