Investigation of a Proposed Long Span Timber Floor for Non-Residential Applications

https://research.thinkwood.com/en/permalink/catalogue197
Year of Publication
2014
Topic
Design and Systems
Mechanical Properties
Material
LVL (Laminated Veneer Lumber)
Application
Floors
Author
Zabihi, Zhinus
Organization
University of Technology Sydney
Year of Publication
2014
Country of Publication
Australia
Format
Thesis
Material
LVL (Laminated Veneer Lumber)
Application
Floors
Topic
Design and Systems
Mechanical Properties
Keywords
Commercial
Failure
Long Span
Large Span
Industrial
Short-term
Static Behaviour
Finite element (FE) model
Stress-Strain
Full Scale
Composites
Language
English
Research Status
Complete
Summary
This PhD research provides a detailed procedure for designing and investigating the short term static behaviour of a proposed long span timber floor system for non-residential applications that meets serviceability and ultimate limit design criteria, with the use of timber as the only structural load bearing part of the system. In this study the behaviour of two types of LVL are investigated through a number of experimental and analytical tests. As a result of the tension and compression tests, a suitable constitutive law is developed which can accurately capture the stress-strain relationship and the failure behaviour of LVL, and it can also be incorporated into FE analysis of any LVL beam with similar structural features to the tested specimens. Further, the results of the full scale four point bending tests on LVL sections are used to identify the behaviour of LVL up to the failure point and to develop a finite element model to capture the behaviour and failure of LVL. Moreover, after investigating the long span timber floors, one system is proposed to be fabricated for the extensive experimental and numerical investigation. The results of the full scale experimental tests together with the numerical investigation provide a robust model for predicting the performance of any timber beams with similar structural features to the proposed system while the dimensions and spans can be varied according to special requirements such as dynamic performance or fire resistance requirements.
Online Access
Free
Resource Link
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