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7 records – page 1 of 1.

Development of Steel-Timber Composite System for Large Scale Construction

https://research.thinkwood.com/en/permalink/catalogue1696
Year of Publication
2016
Topic
Mechanical Properties
Connections
Material
CLT (Cross-Laminated Timber)
LVL (Laminated Veneer Lumber)
Application
Beams
Author
Hassanieh, Amirhossein
Valipour, Hamid
Bradford, Mark
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
LVL (Laminated Veneer Lumber)
Application
Beams
Topic
Mechanical Properties
Connections
Keywords
Short-term
Ultimate Limit States
Push-Out Tests
Failure Modes
Four Point Bending Test
Strength
Stiffness
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4322-4331
Summary
In this paper a novel and efficient structural system, that comprises steel beams and prefabricated timber slabs is developed and tested under short-term service and ultimate limit state loading conditions. In the proposed steeltimber composite (STC) system, bolt and coach screws are employed to transfer shear between steel beam and prefabricated timber slab and provide a composite connection. A series of experimental push-out tests were carried out on cross-banded LVL-Steel and CLT-Steel hybrid specimens to investigate the behaviour of different connection types. Furthermore, the load-deflection response of full-scale STC beams was captured by conducting 4-point bending tests on STC beams. The failure modes of connections and composite beams have been monitored and reported. The results illustrate advantages of using timber panels in conjunction with steel girders in terms of increasing strength and stiffness of composite beams
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Experimental and Analytical Investigation of Short-Term Behaviour of LVL–Concrete Composite Connections And Beams

https://research.thinkwood.com/en/permalink/catalogue150
Year of Publication
2012
Topic
Connections
Design and Systems
Mechanical Properties
Material
LVL (Laminated Veneer Lumber)
Timber-Concrete Composite
Application
Beams
Author
Khorsandnia, Nima
Valipour, Hamid
Crews, Keith
Publisher
ScienceDirect
Year of Publication
2012
Country of Publication
Netherlands
Format
Journal Article
Material
LVL (Laminated Veneer Lumber)
Timber-Concrete Composite
Application
Beams
Topic
Connections
Design and Systems
Mechanical Properties
Keywords
Four Point Bending Test
Screws
Load Deflection
Model
Full Scale
Language
English
Research Status
Complete
Series
Construction and Building Materials
Summary
This paper reports the results of experimental push-out tests on three different types of timber–concrete composite (TCC) connections, including normal screw, SFS and bird-mouth. The load-slip diagrams obtained from lab tests are employed to calculate the slip modulus of the connections for serviceability, ultimate and near collapse cases based on Eurocode 5 recommendations. Additionally, four full-scale TCC beams with normal screw, SFS and bird-mouth are constructed and tested under four-point bending within the serviceability load range to verify the slip modulus of connections which derived from the push-out tests. Further, based on the experimental results and using nonlinear regression, an analytical model each one of the connections is derived which can be easily incorporated into nonlinear FE analyses of TCC beams.
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Extended End Plate Semi-Rigid Composite Joints with CLT Panels and Demountable Shear Connectors

https://research.thinkwood.com/en/permalink/catalogue2059
Year of Publication
2018
Topic
Connections
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Frames

Long-Term Behavior of Steel-CLT Connections

https://research.thinkwood.com/en/permalink/catalogue2080
Year of Publication
2018
Topic
Connections
Serviceability
Mechanical Properties
Material
Steel-Timber Composite
CLT (Cross-Laminated Timber)
Application
Floors

Review on Long-Term Behaviour of Timber-Concrete Composite Floors

https://research.thinkwood.com/en/permalink/catalogue904
Year of Publication
2013
Topic
Serviceability
Material
Timber-Concrete Composite
Application
Floors
Author
Khorsandnia, Nima
Valipour, Hamid
Shrestha, Rijun
Gerber, Christophe
Crews, Keith
Year of Publication
2013
Country of Publication
Australia
Format
Conference Paper
Material
Timber-Concrete Composite
Application
Floors
Topic
Serviceability
Keywords
Long-term Behaviour
Temperature
Relative Humidity
Language
English
Conference
Australasian Conference on the Mechanics of Structures and Materials
Research Status
Complete
Notes
December 11-14, 2012, Sydney, Australia
Summary
Timber-concrete composite (TCC) beams are made up two materials, i.e. wood and concrete, which exhibit different behaviours under long-term loading. The time-dependent behaviour of TCC beam is not only affected by the long-term load but also driven by the variation of the environmental conditions such as temperature and relative humidity. In particular, the maximum deflection under service loads may govern the design requirement for medium to long span TCC beams subjected to heavy environmental conditions. For such structures, application of simplified methods adopted by different codes may lead to significant errors. Hence investigating the long-term behaviour of TCC beams subject to variable environmental condition is of great importance for designers and researchers. In this paper the research undertaken on long-term behaviour of TCC floors is critically reviewed and the recent findings are highlighted. The most important references in the literature were selected to provide more depth into the time-dependent performance of TCC structure.
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Steel-Timber Versus Steel-Concrete Composite Floors: A Numerical Study

https://research.thinkwood.com/en/permalink/catalogue1765
Year of Publication
2016
Topic
Mechanical Properties
Material
Steel-Timber Composite
LVL (Laminated Veneer Lumber)
Application
Floors
Author
Keipour, Nicka
Valipour, Hamid
Bradford, Mark
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Steel-Timber Composite
LVL (Laminated Veneer Lumber)
Application
Floors
Topic
Mechanical Properties
Keywords
Screws
Finite Element Model
Load Carrying Capacity
Strength
Stiffness
Composite Action
Brittle Failure
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 5208-5216
Summary
Concrete is the most widely used construction material in the world. This material causes formation and release of CO2 and high energy consumption during manufacturing. One way to decrease concrete consumption negative consequences is to replace it with lower needed primary energy materials, like timber. The engineered wood products such as laminated veneer lumber (LVL)...
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Structural Response of Timber-Concrete Composite Beams Predicted by Finite Element Models And Manual Calculations

https://research.thinkwood.com/en/permalink/catalogue145
Year of Publication
2014
Topic
Serviceability
Material
LVL (Laminated Veneer Lumber)
Timber-Concrete Composite
Application
Beams
Author
Khorsandnia, Nima
Valipour, Hamid
Crews, Keith
Publisher
SAGE Journals
Year of Publication
2014
Country of Publication
United States
Format
Journal Article
Material
LVL (Laminated Veneer Lumber)
Timber-Concrete Composite
Application
Beams
Topic
Serviceability
Keywords
Connections
Eurocode
Finite Element Model
Loading
Model
Language
English
Research Status
Complete
Series
Advances in Structural Engineering
Summary
This paper presents the structural response of timber-concrete composite (TCC) beams predicted by finite element models (i.e. continuum-based and 1D frame) and manual calculations. Details of constitutive laws adopted for modelling timber and concrete are provided and application of the Hashin damage model in conjunction with continuum-based FE for capturing failure of timber under bi-axial stress state is discussed. A simplified strategy for modelling the TCC connection is proposed in which the connection is modelled by a nonlinear spring and the full load-slip behaviour of each TCC connection is expressed with a formula that can be directly implemented in the general purpose FE codes and used for nonlinear analysis of TCC beams. The developed FE models are verified by examples taken from the literature. Furthermore, the load-displacement response and ultimate loading capacity of the TCC beams are determined according to Eurocode 5 method and compared with FE model predictions.
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7 records – page 1 of 1.