Experimental Study on Flexural and Fatigue Property of Steel Fiber Reinforced Prestressed Concrete Slab

Abstract:

The flexural strength of steel fiber reinforced prestressed concrete slab (SFRPCS) with different steel fiber volume ratio (0%, 1%, 2%) is obtained according to four-point bend test, which reveals that the addition of steel fiber can retard the crack growth and enhance the flexural strength of SFRPCS. With the results of fatigue experiment, the damage forms of SFRPCS is analyzed, strain amplitude-cycle ratio curves are obtained and the plastic strain energy of SFRPCS with different steel fiber volume ratio during fatigue process is calculated. It is shown that after 80% fatigue life, the more of the steel fiber volume ratio, the less of the strain amplitude increment, which proves the addition of steel fiber can prevent the concrete matrix from cracking and improve the fatigue performance of SFRPCS, and the plastic strain energy curve of SFRPCS shows obviously three- stage development.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 1083-1086
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.1083
• Online since: May 2012
• Authors: Shi Yue Wang, Jie Hou, Bi Huang
• Keywords: Fatigue, Flexure, Plastic Strain Energy, SFRPCS

References

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