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149 records – page 1 of 15.

Research Needs Assessment for the Mass Timber Industry: Proceedings of the 2nd North American Mass Timber Research Needs Workshop

https://research.thinkwood.com/en/permalink/catalogue2164
Year of Publication
2019
Topic
General Information
Material
CLT (Cross-Laminated Timber)
DLT (Dowel Laminated Timber)
NLT (Nail-Laminated Timber)
Glulam (Glue-Laminated Timber)
Timber-Concrete Composite
Application
General Application
Shear Walls
Walls
Wood Building Systems
Floors
Columns
Bridges and Spans

In-Plane Shear Performance of Cross-laminated Timber and Cross-laminated Timber Concrete Composite Diaphragm Connection Systems

https://research.thinkwood.com/en/permalink/catalogue2241
Year of Publication
2019
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Timber-Concrete Composite
Application
General Application

Modular Timber Concrete Composite System for Short Span Highway Bridges

https://research.thinkwood.com/en/permalink/catalogue2297
Year of Publication
2019
Topic
Design and Systems
Connections
Material
Timber-Concrete Composite
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Author
Liang, Yi
Publisher
University of Toronto
Year of Publication
2019
Country of Publication
Canada
Format
Thesis
Material
Timber-Concrete Composite
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Topic
Design and Systems
Connections
Keywords
Modular Construction
Ultra-High Performance Fibre Reinforced Concrete (UHPFRC)
Self-Tapping Screws
Canadian Highway Bridge Design Code
Language
English
Research Status
Complete
Summary
An innovative concept for a modular timber concrete composite system for short span highway bridges has been designed and key components experimentally validated. The proposed system consists of a Ultra-High Performance Fibre Reinforced Concrete(UHPFRC) deck and glue-laminated timer (glulam) girders linked to act compositely together by reinforcing steel bar shear connectors. This composite system has light, stable modules that can be rapidly constructed on site with less special equipment. Simple design checks indicate that the concept satisfies all serviceability limit state(SLS) and ultimate limit state(ULS) requirements of the Canadian Highway Bridge Design Code. Pull-out tests characterized the embedment lengths of 20M steel bar connectors to be 10 bar-diameters in UHPFRC. Push-off tests determined the embedment lengths of the same bars to be 30 bar-diameters glued into the timber girders. The slip modulus of the connectors is determined to be 67 kN/mm. The stiffness of the crosswise self-tapping screw connectors were tested and found to be structurally insignificant in this application. The excellent tensile and cracking properties of the reinforced UHPFRC deck was experimentally verified. A small amount of reinforcement would further improve the ductility of the UPHFRC deck system.
Online Access
Free
Resource Link
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Serviceability Performance of Timber Concrete Composite Floors

https://research.thinkwood.com/en/permalink/catalogue2353
Year of Publication
2019
Topic
Serviceability
Material
Timber-Concrete Composite
Application
Floors
Author
Tannert, Thomas
Mehdi Ebadi, Md
Gerber, Adam
Year of Publication
2019
Country of Publication
Canada
Format
Journal Article
Material
Timber-Concrete Composite
Application
Floors
Topic
Serviceability
Keywords
Hybrid
Concrete Slab
Bending
Vibration
Long-term Performance
Stiffness
Language
English
Research Status
Complete
Series
Modular and Offsite Construction (MOC)
Notes
DOI: https://doi.org/10.29173/mocs95
Online Access
Free
Resource Link
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Preliminary Assessment of Moisture-Related Properties for Structural Composite Lumber

https://research.thinkwood.com/en/permalink/catalogue1175
Year of Publication
2018
Topic
Mechanical Properties
Moisture
Serviceability
Material
LSL (Laminated Strand Lumber)
LVL (Laminated Veneer Lumber)
OSL (Oriented Strand Lumber)
PSL (Parallel Strand Lumber)
Application
Wood Building Systems
Author
Wang, Jieying
Organization
FPInnovations
Year of Publication
2018
Country of Publication
Canada
Format
Report
Material
LSL (Laminated Strand Lumber)
LVL (Laminated Veneer Lumber)
OSL (Oriented Strand Lumber)
PSL (Parallel Strand Lumber)
Application
Wood Building Systems
Topic
Mechanical Properties
Moisture
Serviceability
Keywords
Water Absorption
Vapour Permeance
Vapour Sorption
Dimensional Stability
Building Envelope
Moisture Management
Language
English
Research Status
Complete
Summary
Fifteen structural composite lumber (SCL) products including laminated-veneer lumber (LVL), laminated strand lumber (LSL), oriented strand lumber (OSL), and parallel strand lumber (PSL) provided by Boise Cascade, LP, West Fraser, and Weyerhaeuser were tested for moisture-related properties in this study, also covering four reference materials: 16-mm Oriented Strand Board (OSB), 19-mm Canadian Softwood Plywood (plywood), 38-mm Douglas-fir and lodgepole pine solid wood. Water absorption, vabour permeance, vapour sorption, and dimensional stability were measured with limited replication by following relevant standards for a purpose of assisting in improving building design and construction, such as hygrothermal modelling of building envelope assemblies, design for vertical differential movement, and on-site moisture management.
Online Access
Free
Resource Link
Less detail

Laminated Strand Lumber (LSL) Reinforced by GFRP; Mechanical and Physical Properties

https://research.thinkwood.com/en/permalink/catalogue1311
Year of Publication
2018
Topic
Mechanical Properties
Design and Systems
Material
LSL (Laminated Strand Lumber)
Application
General Application

Advanced Wood-Based Solutions for Mid-Rise and High-Rise Construction: Structural Performance of Post-Tensioned CLT Shear Walls with Energy Dissipators

https://research.thinkwood.com/en/permalink/catalogue1472
Year of Publication
2018
Topic
Design and Systems
Mechanical Properties
Seismic
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
LVL (Laminated Veneer Lumber)
LSL (Laminated Strand Lumber)
Application
Shear Walls
Author
Chen, Zhiyong
Popovski, Marjan
Symons, Paul
Organization
FPInnovations
Year of Publication
2018
Country of Publication
Canada
Format
Report
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
LVL (Laminated Veneer Lumber)
LSL (Laminated Strand Lumber)
Application
Shear Walls
Topic
Design and Systems
Mechanical Properties
Seismic
Keywords
Compression Tests
Compression Strength
Energy Dissipation
Post-Tensioned
Pres-Lam
Monotonic Loading
Reverse Cyclic Loading
Language
English
Research Status
Complete
Summary
The latest developments in seismic design philosophy have been geared towards developing of so called "resilient" or "low damage" innovative structural systems that can reduce damage to the structure while offering the same or higher levels of safety to occupants. One such innovative structural system is the Pres-Lam system that is a wood-hybrid system that utilizes post-tensioned (PT) mass timber components in both rigid-frame and wall-based buildings along with various types of energy disspators. To help implement the Pres-Lam system in Canada and the US, information about the system performance made with North American engineered wood products is needed. That information can later be used to develop design guidelines for the designers for wider acceptance of the system by the design community.Several components influence the performance of the Pres-Lam systems: the load-deformation properties of the engineered wood products under compression, load-deformation and energy dissipation properties of the dissipators used, placement of the dissipators in the system, and the level of post-tensioning force. The influence of all these components on the performance of Pres-Lam wall systems under gravity and lateral loads was investigated in this research project. The research project consisted of two main parts: material tests and system tests.
Online Access
Free
Resource Link
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Slip Modulus of Screws in Timber and Lightweight Concrete Composite Structures

https://research.thinkwood.com/en/permalink/catalogue1794
Year of Publication
2018
Topic
Connections
Material
Timber-Concrete Composite
Application
Floors
Author
Kozaric, Ljiljana
Kukaras, Danijel
Prokic, Aleksandar
Beševic, Miroslav
Kekanovic, Milan
Year of Publication
2018
Country of Publication
United States
Citation
Kozaric, L., Kukaras, D., Prokic, A., Besevic, M., and Kekanovic, M. (2018). "Slip modulus of screws in timber and lightweight concrete composite structures," BioRes. 13(3), 6021-6032.
Format
Journal Article
Material
Timber-Concrete Composite
Application
Floors
Topic
Connections
Keywords
Tension
Compression
Weight
Slip Modulus
Connectors
Push-Out Tests
Eurocode 2
Eurocode 5
Language
English
Research Status
Complete
Series
BioResources
Online Access
Free
Resource Link
Less detail

A 'Hybrid' Multi-Storey Building - Meeting Design Criteria in a Cost-Effective Way

https://research.thinkwood.com/en/permalink/catalogue1845
Year of Publication
2018
Topic
Design and Systems
Material
LVL (Laminated Veneer Lumber)
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Steel-Timber Composite
Timber-Concrete Composite
Other Materials
Application
Walls
Floors
General Application
Frames

Development of a Design Procedure for Timber Concrete Composite Floors in Australia and New Zealand

https://research.thinkwood.com/en/permalink/catalogue1848
Year of Publication
2018
Topic
Design and Systems
Material
Timber-Concrete Composite
Application
Floors
Author
Gerber, Christophe
Crews, Keith
Publisher
New Zealand Timber Design Society
Year of Publication
2018
Country of Publication
New Zealand
Format
Journal Article
Material
Timber-Concrete Composite
Application
Floors
Topic
Design and Systems
Keywords
Mid-Rise
Multi-Family
Design
Connection Behaviour
Language
English
Research Status
Complete
Series
New Zealand Timber Design Journal
Online Access
Free
Resource Link
Less detail

149 records – page 1 of 15.