FireDOC Search

Author
Hock, L. P.
Title
Fire Resistance of Connections in Laminated Veneer Lumber (LVL).
Coporate
University of Canterbury, Christchurch, New Zealand
Report
Fire Engineering Research Report 06/3, May 2006, 122 p.
Keywords
lumber | fire resistance | laminates | temperature | fire ratings | compressive strength | temperature | tests | codes | fire severity | design applications | furnaces | structural design | steel plates | charring | fire protection | intumescent coatings | heating
Identifiers
Laminated Veneer Lumber (LVL); joint types and their fire performance; design of connections in ambient and fire conditions; preparation of test specimens; cold testing results; furnace testing results; joint types and their fire performance; design for cold conditions; esign for fire conditions
Abstract
The fire resistance of timber connections is relatively unknown in the construction and design industries even though they are widely used. This research focuses on the fire resistance of nailed, screwed, bolted and self-drilling doweled connections in laminated veneer lumber (LVL) timber. These connections have been found to have high strength under cold or normal temperature but hardly achieved 30 minutes fire rating in the furnace tests. To establish the performance of connections, an investigation was carried out on the compressive strength of connections by having compressive tests using an Instron Testing Machine. Similar connections were tested at simulated fire conditions under constant load in a custom-built furnace. The different fasteners used and the arrangement of the connections gave different connection strengths at ambient and elevated temperature.