A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fatigue of Plastic Fibre Reinforced Concrete in Bending: Assessment and Prediction
The present paper deals with an experimental study on the flexural fatigue behaviour of pre-cracked polypropylene fibre reinforced concrete with two different volume of fibre. Mechanical response was evaluated through compressive strength, elastic modulus and static bending test. Fatigue test considered an initial crack width accepted in the service limit state and the evolution of the crack opening displacement of the beams subjected to a prescribed number of cycles (1,000,000 or 2,000,000). After the cyclic load, the post-fatigue residual strength was evaluated and compared to the static response. Results suggest that the mechanism of crack development is independent of the adopted fibre content. The post-fatigue strength seems to be unaffected by accumulated damage due to cyclic load and the static load-crack opening displacement curve might be used as a criterion to predict the residual strength. Furthermore, a conceptual model is proposed to predict the crack opening as a function of number of cycles in view of accumulated fatigue damage. The equation was validated for different fibre content and polypropylene fibres.
Fatigue of Plastic Fibre Reinforced Concrete in Bending: Assessment and Prediction
The present paper deals with an experimental study on the flexural fatigue behaviour of pre-cracked polypropylene fibre reinforced concrete with two different volume of fibre. Mechanical response was evaluated through compressive strength, elastic modulus and static bending test. Fatigue test considered an initial crack width accepted in the service limit state and the evolution of the crack opening displacement of the beams subjected to a prescribed number of cycles (1,000,000 or 2,000,000). After the cyclic load, the post-fatigue residual strength was evaluated and compared to the static response. Results suggest that the mechanism of crack development is independent of the adopted fibre content. The post-fatigue strength seems to be unaffected by accumulated damage due to cyclic load and the static load-crack opening displacement curve might be used as a criterion to predict the residual strength. Furthermore, a conceptual model is proposed to predict the crack opening as a function of number of cycles in view of accumulated fatigue damage. The equation was validated for different fibre content and polypropylene fibres.
Fatigue of Plastic Fibre Reinforced Concrete in Bending: Assessment and Prediction
RILEM Bookseries
Serna, Pedro (editor) / Llano-Torre, Aitor (editor) / Martí-Vargas, José R. (editor) / Navarro-Gregori, Juan (editor) / Carlesso, Debora Martinello (author) / Cavalaro, Sergio H. P. (author) / de la Fuente, Albert (author)
RILEM-fib International Symposium on Fibre Reinforced Concrete ; 2021 ; Valencia, Spain
Fibre Reinforced Concrete: Improvements and Innovations II ; Chapter: 10 ; 109-120
RILEM Bookseries ; 36
2021-09-05
12 pages
Article/Chapter (Book)
Electronic Resource
English
Numerical modelling of fibre-reinforced concrete fatigue in bending
| British Library Online Contents | 2002
Numerical modelling of fibre-reinforced concrete fatigue in bending
| Tema Archive | 2002
Fatigue of Cracked Steel Fibre Reinforced Concrete Subjected to Bending
| Springer Verlag | 2021