Static and Fatigue Performance of FRCM-Strengthened Concrete Beams
Source abstract
Abstract
Fabric-reinforced cementitious matrix (FRCM) composites represent a new technique for strengthening concrete and masonry structures. Various studies confirm the efficiency of FRCM systems in terms of ultimate capacity gain, compatibility with the parent material, and viability in corrosive environments and under elevated temperatures. An appealing use of FRCM composites is to strengthen concrete bridges. Vehicular traffic imposes cycles of loading and unloading on the structure that can lead to fatigue failure, but the fatigue life of FRCM materials is yet to be investigated. This study examined fatigue performance of FRCM-strengthened reinforced concrete beams. Twelve concrete beams reinforced with carbon fabric were tested, including four benchmark beams subject to monotonic loading. The effects of fiber architecture and reinforcement ratio were accounted for by using two types of fabrics. Inspection of the fractured sections indicated that fatigue failure in the steel reinforcement was the predominant cause of failure. Analysis of applied stress range versus number of cycles to failure suggested that FRCM systems enhance fatigue life by controlling crack propagation in concrete.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Innovative concrete reinforcement materials · Masonry and Concrete Structural Analysis · Structural Behavior of Reinforced Concrete
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Ph.D. Candidate, Dept. of Civil, Architectural and Environmental Engineering, Univ. of Miami, 1251 Memorial Dr., Coral Gables, FL 33146 (corresponding author).
Professor and Chair, Dept. of Civil, Architectural and Environmental Engineering, Univ. of Miami, 1251 Memorial Dr., Coral Gables, FL 33146.
Professor, Dept. of Civil and Architectural Engineering, Qatar Univ., Doha 2713, Qatar.
Associate Professor, Dept. of Civil and Water Engineering, Laval Univ., Quebec City, Canada G1V 0A6.
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