A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Axial behaviour of FRP-confined rubberised concrete: An experimental investigation
Highlights The axial behaviours of FRP-confined regular and rubberised concrete are investigated. Effects of rubber content, section shape, FRP type and number of layers are assessed. Confinement effectiveness enhances by increasing rubber content & FRP rupture strain. Efficiency of confinement models for rubberised square and circular concrete examined. Existing models fail to predict the behaviour of confined square rubberised concrete.
Abstract This paper investigates the axial behaviour of square and circular concrete specimens confined by externally bonded Fibre Reinforced Polymer (FRP) jackets. Axial compression tests were performed on 96 regular and rubberised concrete specimens. The parameters considered were rubber content (0% and 60%), section shape (circular and square), FRP type (Carbon or Aramid) and the number of FRP layer (1, 2 and 3). The behaviour of the specimens in both axial and lateral directions, as well as their dilation characteristics, were investigated. The test results indicate that the confinement effectiveness of Aramid-FRP is better than that of Carbon-FRP. It is also shown that the detrimental effect of sharp corner on confinement effectiveness is less critical when using high rubber content as the element can develop large lateral expansion at unprecedented axial deformation. Large axial deformations can enable the development of highly ductile concrete elements. Existing design-oriented models fail to predict the behaviour of confined rubberised concrete with rectangular cross-section, indicating the need for developing more refined confinement models.
Axial behaviour of FRP-confined rubberised concrete: An experimental investigation
Highlights The axial behaviours of FRP-confined regular and rubberised concrete are investigated. Effects of rubber content, section shape, FRP type and number of layers are assessed. Confinement effectiveness enhances by increasing rubber content & FRP rupture strain. Efficiency of confinement models for rubberised square and circular concrete examined. Existing models fail to predict the behaviour of confined square rubberised concrete.
Abstract This paper investigates the axial behaviour of square and circular concrete specimens confined by externally bonded Fibre Reinforced Polymer (FRP) jackets. Axial compression tests were performed on 96 regular and rubberised concrete specimens. The parameters considered were rubber content (0% and 60%), section shape (circular and square), FRP type (Carbon or Aramid) and the number of FRP layer (1, 2 and 3). The behaviour of the specimens in both axial and lateral directions, as well as their dilation characteristics, were investigated. The test results indicate that the confinement effectiveness of Aramid-FRP is better than that of Carbon-FRP. It is also shown that the detrimental effect of sharp corner on confinement effectiveness is less critical when using high rubber content as the element can develop large lateral expansion at unprecedented axial deformation. Large axial deformations can enable the development of highly ductile concrete elements. Existing design-oriented models fail to predict the behaviour of confined rubberised concrete with rectangular cross-section, indicating the need for developing more refined confinement models.
Axial behaviour of FRP-confined rubberised concrete: An experimental investigation
Wang, Zhao (author) / Hajirasouliha, Iman (author) / Guadagnini, Maurizio (author) / Pilakoutas, Kypros (author)
2020-09-16
Article (Journal)
Electronic Resource
English
Behaviour of unconfined and FRP-confined rubberised concrete in axial compression
| British Library Online Contents | 2017
Behaviour of unconfined and FRP-confined rubberised concrete in axial compression
| British Library Online Contents | 2017
Behaviour of unconfined and FRP-confined rubberised concrete in axial compression
| Online Contents | 2017