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Structural Performance of Nail-Laminated Timber-Concrete Composite Floors

https://research.thinkwood.com/en/permalink/catalogue2146
Year of Publication
2017
Topic
Connections
Material
NLT (Nail-Laminated Timber)
Timber-Concrete Composite
Application
Floors
Author
Hong, Kwan Eui Marcel
Organization
University of British Columbia
Year of Publication
2017
Country of Publication
Canada
Format
Thesis
Material
NLT (Nail-Laminated Timber)
Timber-Concrete Composite
Application
Floors
Topic
Connections
Keywords
Truss Plates
Self-Tapping Screws
Strength
Stiffness
Shear Connectors
Quasi-Static Loading Test
Bending
Language
English
Research Status
Complete
Summary
Nail-laminated timber-concrete composite (TCC) is a system composed of a nail-laminated timber (NLT) panel connected to a concrete slab through shear connections. When used as flexural elements such as floors, the concrete and NLT are located in the compression and tension zones, respectively...
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Truss Plates for Use as Wood-Concrete Composite Shear Connectors

https://research.thinkwood.com/en/permalink/catalogue732
Year of Publication
2012
Topic
Connections
Design and Systems
Mechanical Properties
Material
Timber-Concrete Composite
LVL (Laminated Veneer Lumber)
Application
Beams
Author
Clouston, Peggi
Schreyer, Alexander
Organization
Structures Congress
Publisher
American Society of Civil Engineers
Year of Publication
2012
Country of Publication
United States
Format
Conference Paper
Material
Timber-Concrete Composite
LVL (Laminated Veneer Lumber)
Application
Beams
Topic
Connections
Design and Systems
Mechanical Properties
Keywords
shear connectors
Truss Plates
Slip-modulus
Ultimate Shear Capacity
Push-Out
Bending Stiffness
Strength
Four Point Bending Test
Language
English
Conference
Structures Congress 2011
Research Status
Complete
Notes
April 14-16, 2011, Las Vegas, Nevada, United States
Summary
Wood-concrete composite systems are well established, structurally efficient building systems for both new construction and rehabilitation of old timber structures. Composite action is achieved through a mechanical device to integrally connect in shear the two material components, wood and concrete. Depending on the device, different levels of composite action and thus efficiency are achieved. The purpose of this study was to investigate the structural feasibility and effectiveness of using truss plates, typically used in the making of metal-plate-connected wood trusses, as shear connectors for laminated veneer lumber (LVL)-concrete composite systems. The experimental program consisted of two studies. The first study established slip-modulus and ultimate shear capacity of the truss plates when used in an LVL-concrete push out assembly. The second study evaluated overall composite bending stiffness and strength in two full size T-beams when subjected to four-point bending. One beam employed two continuous rows of truss plates and the other employed one row. It was found that the initial stiffness of both T-beams was similar for one and two rows of truss plates but that the ultimate capacity was approximately 20% less with the use of only one row.
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