Fatigue Investigation of High-Strength Concrete Members Reinforced with CFRP

Abstract:

Fatigue damage becomes an emerging problem in lots of concrete structures which will subject to cyclic loadings during their working life. This paper presents a study on interfacial shear fatigue performance of a high-strength concrete structure strengthened by carbon fiber-reinforced plastic (CFRP) plate, which has been established as an effective method for rehabilitation and strengthening of concrete structures. Based on the static test, a new experimental investigation of the shear fatigue performance along the concrete-plate interface under the low cycle fatigue load in the condition of R=0.1 is presented. The main variable is the concrete strength. Compared with the static ultimate strength, fatigue strength decreases. Therefore, a safety factor of the fatigue strength at the interface of CFRP and concrete should be applied in design.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 2202-2205
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.2202
• Online since: May 2011
• Authors: Hong Hai, Li Sun, Ying Hua Zhao
• Keywords: Carbon Fiber Reinforced Polymer/Plastic (CFRP), Fatigue Behaviour, High-Strength Concrete Member, Shear Test

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