Fatigue Investigation of High-Strength Concrete Members Reinforced with CFRP
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.
Guangfan Li, Yong Huang and Chaohe Chen
H. Hai et al., "Fatigue Investigation of High-Strength Concrete Members Reinforced with CFRP", Advanced Materials Research, Vols. 250-253, pp. 2202-2205, 2011