A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of bond in the development length of CFRP pretensioned beams
Carbon Fibre Reinforced Polymer (CFRP) tendons present an alternative material that can mitigate steel corrosion problems in concrete bridges. The use of CFRP prestress tendons can result in more durable prestressed concrete structures. However, the potential matrix plasticisation of CFRP tendons in humid environments and their inherent lack of ductility need to be considered in the design process. A tension stiffening analysis is undertaken to study the effect of variations in bond strength parameters on the cracking behaviour, deformability and structural performance of CFRP prestressed beams. The bond strength scenarios under consideration reflect either low or high bond conditions. The former could be associated with epoxy plasticisation and bond degradation due to moisture ingress at a crack location. A low bond performance results in a smaller number of cracks and higher deflections at failure compared with high bond tendons.
Effect of bond in the development length of CFRP pretensioned beams
Carbon Fibre Reinforced Polymer (CFRP) tendons present an alternative material that can mitigate steel corrosion problems in concrete bridges. The use of CFRP prestress tendons can result in more durable prestressed concrete structures. However, the potential matrix plasticisation of CFRP tendons in humid environments and their inherent lack of ductility need to be considered in the design process. A tension stiffening analysis is undertaken to study the effect of variations in bond strength parameters on the cracking behaviour, deformability and structural performance of CFRP prestressed beams. The bond strength scenarios under consideration reflect either low or high bond conditions. The former could be associated with epoxy plasticisation and bond degradation due to moisture ingress at a crack location. A low bond performance results in a smaller number of cracks and higher deflections at failure compared with high bond tendons.
Effect of bond in the development length of CFRP pretensioned beams
Toumpanaki, Eleni (author) / Lees, Janet M (author) / Terrasi, Giovanni (author)
2019-07-01
Toumpanaki , E , Lees , J M & Terrasi , G 2019 , Effect of bond in the development length of CFRP pretensioned beams . in IABSE Symposium Guimaraes 2019 : Towards a Resilient Built Environment Risk and Asset Management . Curran Associates, Inc , pp. 635-642 , IABSE Symposium Guimarães 2019 , Guimarães , Portugal , 27/03/19 . < http://toc.proceedings.com/48411webtoc.pdf >
Article (Journal)
Electronic Resource
English
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