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Preliminary Study on Wire Prestressing Methods for Timber Pieces Reinforcement

https://research.thinkwood.com/en/permalink/catalogue653
Year of Publication
2014
Topic
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Negrão, João
Publisher
ScienceDirect
Year of Publication
2014
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Design and Systems
Keywords
Bending Strength
Prestress
Post-Tension
Pre-Tension
Research Status
Complete
Series
Construction and Building Materials
Summary
The possibility of improving the bending strength of timber beams through prestress is discussed. Different prestressing and anchoring procedures are investigated: (i) post-tension, with mechanical anchorage on the ends of the wood elements; (ii) pre-tension, with the anchorages being either mechanical, as in the previous system, or glued, with the force being gradually transferred through shear stresses along a certain length of the wire/wood interface. The main conclusion is that any of the procedures may be advantageously used with either small (mass-production) or long glued-laminated timber beams, as a possible alternative to CFRP reinforced beams.
Online Access
Free
Resource Link
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