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Fire Resistance of Laminated Veneer Lumber (LVL) and Cross-Laminated Timber (XLAM) Elements

https://research.thinkwood.com/en/permalink/catalogue97
Year of Publication
2012
Topic
Fire
Material
CLT (Cross-Laminated Timber)
LVL (Laminated Veneer Lumber)
Author
Menis, Agnese
Organization
University of Cagliari
Year of Publication
2012
Country of Publication
Italy
Format
Thesis
Material
CLT (Cross-Laminated Timber)
LVL (Laminated Veneer Lumber)
Topic
Fire
Keywords
Numerical models
Finite element (FE) model
Abaqus
Testing
Language
English
Research Status
Complete
Summary
This research investigates the fire behaviour of laminated veneer lumber elements and cross-laminated timber panels. The study focused on some research questions regarding the fire resistance of unprotected and protected timber structural elements, the possibility to predict accurately the fire behaviour of timber elements through numerical modelling, and the accuracy of analytical estimations of fire resistance using simplified design methods. Experimental tests of small and large specimens exposed to fire on one or more sides and subjected to different types and levels of load were performed. The results highlight the good performance of timber structural elements in fire conditions. The collected data were used to validate two- and three-dimensional models implemented in the general purpose finite element code Abaqus. Thermal and mechanical analyses were carried out to estimate the temperature distribution within unprotected and protected cross-sections of different sizes, the fire resistance and the displacement of timber elements loaded inplane and out-of-plane
Online Access
Free
Resource Link
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Glued Timber-Concrete Beams – Analytical and Numerical Models for Assessment of Composite Action

https://research.thinkwood.com/en/permalink/catalogue154
Year of Publication
2013
Topic
Design and Systems
Serviceability
Material
Glulam (Glue-Laminated Timber)
Timber-Concrete Composite
Application
Beams
Author
Skec, Leo
Bjelanovic, Adriana
Jelenic, Gordan
Publisher
HRCAK
Year of Publication
2013
Country of Publication
Croatia
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Timber-Concrete Composite
Application
Beams
Topic
Design and Systems
Serviceability
Keywords
Finite Element Model
Load Carrying Capacity
Loading
Numerical models
Short-term
Language
English
Research Status
Complete
Series
Engineering Review
Summary
An analysis of glued composite timber-concrete systems is presented. Experimental data obtained from laboratory tests under short-term loading are compared with the analytical calculation and the design procedure for fully composite beams given in the EN 1995-1-1 standard. Numerical linear 2D finite element modelling and an analytical solution assuming linear elastic behaviour of glue and the interlayer slip are also conducted and validated. The effect of composite action in the three mentioned approaches is assessed by comparison of midspan deflections. In this way, a parametric study of the glue-line properties and the interlayer slip stiffness on load-carrying capacity and serviceability of glued composite beams exposed to short-time loading is easily performed.
Online Access
Free
Resource Link
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