Mechanical fastening of multi-directional CFRP laminates in concrete

Author(s): P. Desnerck, L. Vasseur, H. Van Hoecke
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 458- 459
Total Pages: 2
Language: English

Externally bonded CFRP (Carbon Fibre Reinforced Polymer) laminates are nowadays more frequently used in building industry for the strengthening, retrofitting or repair of existing structures. In most cases adhesive bonding is used for uni-directional laminates, but with the introduction of multi-directional laminates the possibilities of mechanical fastening, by means of bolts, are enhanced.
The use of additional mechanical anchoring has already been proven in previous research projects. This research project focussed on the mechanical anchoring of multidirectional CFRP composites. Besides the diameter and prestressing tension in the bolt, the dimensions of the spreader plate were varied. The results revealed a significant influence of the prestressing force in the bolt on the onset of failure, but a minor effect on the final failure load. In contrary, the bolt diameter had a minor influence on the onset of failure, but a more significant effect on the failure strength.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00