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Shear Strength of LVL Box Beams in Fire Conditions

https://research.thinkwood.com/en/permalink/catalogue540
Year of Publication
2014
Topic
Fire
Mechanical Properties
Material
LVL (Laminated Veneer Lumber)
Application
Beams
Author
Costello, Reuben
Abu, Anthony
Moss, Peter
Buchanan, Andrew
Year of Publication
2014
Country of Publication
Canada
Format
Conference Paper
Material
LVL (Laminated Veneer Lumber)
Application
Beams
Topic
Fire
Mechanical Properties
Keywords
Box Beams
Post-Tensioned
Fire Performance
Shear Strength
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
This paper outlines a series of experimental tests of LVL box beams designed to fail in shear. Some beams utilised post-tensioning systems to increase the flexural strength and decrease deflection. Fire conditions were simulated using either an ISO 834 furnace test or by mechanically reducing the section dimensions on three-sides of the beam to replicate charring. Comparisons with a simplified calculation method for the fire performance of post-tensioned timber box beams are made and discussed. This paper gives special focus to the shear performance of LVL box beams because previous research had identified that the inclusion of post-tensioning may increase the likelihood of shear failure occurring in LVL box beams, especially in fire conditions.
Online Access
Free
Resource Link
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