Comparisons Between Pull-Out Behaviour of Various Hooked-End Fibres in Normal–High Strength Concretes

• Main Authors: Sadoon Abdallah, David W. A. Rees
• Format: Article
• Language: English
• Published: SpringerOpen 2019-04-01
• Series: International Journal of Concrete Structures and Materials
• Subjects: pull-out behaviour; normal-high strength concrete; hooked end fibres; an elastic–plastic response; frictional pulley analysis
• Online Access: http://link.springer.com/article/10.1186/s40069-019-0337-0

Abstract In this paper an elastic–plastic response has been developed to predict the pull-out behaviour of various hooked end fibres embedded in normal–high strength concretes. An elastic–plastic moment expression has been proposed to represent the partially plastic hinge formed during pull-out. The proposed formula has been incorporated into a frictional pulley force analysis in order to predict the applied loading at each stage of pull-out. This prediction accounts for the variation of geometrical and tensile properties of the fibres as well as concrete strength. The proposed model is validated against experimental pull-out results of various hooked end fibres.