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10 records – page 1 of 1.

Laboratory Investigation of Cross-Laminated Timber (CLT) Decks for Bridge Applications

https://research.thinkwood.com/en/permalink/catalogue2557
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Bridges and Spans
Organization
Forest Products Laboratory
Iowa State University
Country of Publication
United States
Material
CLT (Cross-Laminated Timber)
Application
Bridges and Spans
Topic
Mechanical Properties
Keywords
Bridge Decks
Serviceability
Structural Performance
Research Status
In Progress
Notes
Project contacts are James Wacker at the Forest Products Laboratory, Justin Dahlberg and Brent Phares at Iowa State University
Summary
The use of cross-laminated timber (CLT) has gained popularity over the past decade, with many advances stemming from completed research and construction projects in Europe. Many inherent advantages of CLT (such as, it is prefabricated, relatively lightweight, dimensionally stable, and environmentally sustainable) have been utilized in vertical construction projects. Despite these advances, the use of CLT in bridge structures has been limited, and the adoption of CLT into governing design codes has been slow. However, CLT shows promise as a complementary or alternative construction material in bridge decks, and additional research would help characterize the structural attributes of CLT decks to guide their use in bridge projects.
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Development and Evaluation of Mechanical Joints for Composite Floor Elements with Cross Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue208
Year of Publication
2015
Topic
Connections
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Timber-Concrete Composite
Application
Floors
Author
Jacquier, Nicolas
Organization
Luleå University of Technology
Year of Publication
2015
Country of Publication
Sweden
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Timber-Concrete Composite
Application
Floors
Topic
Connections
Mechanical Properties
Keywords
Fasteners
Metal Plate
Strength
Stiffness
Double-sided Nail Plates
Language
English
Research Status
Complete
Summary
This thesis focuses on the development of composite floor solutions where Cross Laminated Timber (CLT) panels are used as a base element. Preliminary investigations on shear connections between prefabricated concrete beams and CLT panels were performed. The focus is on investigations on glulam-CLT composite beam elements, and the mechanical shear connectors used to achieve composite action. The new shear connections system evaluated in this thesis for glulam-CLT floor elements consists of double-sided punched metal plate fasteners. In order to secure the shear connection made with double-sided nail plates and to improve the shear behaviour of the joint, a combination with inclined self-tapping screws was evaluated through a shear test programme. It was found that the double-sided punched metal plate fasteners and inclined screws can effectively be combined.
Online Access
Free
Resource Link
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Development of Innovative MTP-Concrete Composite Floor System with Notched Timber Connection

https://research.thinkwood.com/en/permalink/catalogue2659
Topic
Connections
Design and Systems
Mechanical Properties
Material
Timber-Concrete Composite
Application
Floors
Author
Zhang, Lei
Organization
University of Alberta
Country of Publication
Canada
Material
Timber-Concrete Composite
Application
Floors
Topic
Connections
Design and Systems
Mechanical Properties
Keywords
Stiffness
Strength
Notched Connections
Shrinkage
Research Status
In Progress
Summary
The objective of this research is to develop optimum notch profile to achieve maximum connection stiffness and strength properties, characterize notched timber connection MTP-concrete floor systems, including concrete shrinkage and develop floor system details and design procedure.
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Study on Strengthening Glued-Laminated Timber with Aramid Cords and Properties of Composite Materials

https://research.thinkwood.com/en/permalink/catalogue677
Year of Publication
2012
Topic
Design and Systems
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Rajczyk, Marlena
Jonczyk, Damian
Publisher
Scientific.net
Year of Publication
2012
Country of Publication
Switzerland
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Design and Systems
Mechanical Properties
Keywords
AFRP
Strengthening
Load Bearing Capacity
Numerical analysis
Deflection
Language
English
Research Status
Complete
Series
Advanced Materials Research
Summary
This paper presents method of strengthening glued-laminated timber with aramid cords. In order to estimate the increase in load-bearing capacity, numerical analysis was carried out on three beams: unreinforced; reinforced with one layer of aramid cords...
Online Access
Free
Resource Link
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Timber-Concrete Composite Slabs Made of Beech Laminated Veneer Lumber with Notched Connection

https://research.thinkwood.com/en/permalink/catalogue2210
Year of Publication
2016
Topic
Design and Systems
Mechanical Properties
Material
LVL (Laminated Veneer Lumber)
Timber-Concrete Composite

Development of a Slab-on-Girder Wood-Concrete Composite Highway Bridge

https://research.thinkwood.com/en/permalink/catalogue1421
Year of Publication
2012
Topic
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans

Evaluation of Bending Tests on Composite Glulam-CLT Beams Connected with Double-Sided Punched Metal Plates and Inclined Screws

https://research.thinkwood.com/en/permalink/catalogue436
Year of Publication
2015
Topic
Connections
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Floors
Author
Jacquier, Nicolas
Girhammar, Ulf
Publisher
ScienceDirect
Year of Publication
2015
Country of Publication
Netherlands
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Floors
Topic
Connections
Mechanical Properties
Keywords
Multi-Storey
Four Point Bending Test
Shear connection
Double-sided Punched Metal Plate
Separation Forces
Language
English
Research Status
Complete
Series
Construction and Building Materials
Summary
This report presents bending tests performed on composite beams made from glulam beams and cross laminated timber (CLT) panels. The composite beam, with a T-cross section, represents a section of a floor element in a multi-storey CLT construction system. The shear connections used were made either of doublesided punched metal plate fasteners, either of inclined screws, or of a combination of both fastener types. The screws are used to secure the shear connection with double-sided nail plates with respect to possible separation forces between the glulam and the CLT. An additional test with a screw glued connection was made for comparison as the upper bound case in terms of composite action. The results show the beams with double-sided nail plates (with or without screws) achieved a very high level of composite action and an overall satisfactory behaviour. Almost full composite action was achieved for the screw-glued composite beam. A detailed design example of the beam element according to the Eurocode 5 and Finnish National Annex is presented.
Online Access
Free
Resource Link
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Connection Details Between Composite Beam and Cross-Laminated Timber Slab

https://research.thinkwood.com/en/permalink/catalogue2720
Year of Publication
2020
Topic
Connections
Material
CLT (Cross-Laminated Timber)
Application
Floors
Author
Zhukov, Pavel
Publisher
Hämeenlinna University Center
Year of Publication
2020
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Application
Floors
Topic
Connections
Keywords
Composite Beam
Timber Slab
Connection Details
Connectors
Language
English
Research Status
Complete
Summary
The aim of the Bachelor’s thesis was to describe and evaluate the most common connection details between steel-concrete composite (SCC) beam DELTABEAM® and Cross-Laminated Timber (CLT) slab in two variations: with and without concrete topping. The purpose of the thesis was to provide a basis for future studies that are to expand the CLT range of appliance in Finland. The thesis was based on a theoretical description of the four different connectors that utilize the same working principles as the connections used for joining concrete floor slabs and the beam using the German standard details. The calculations were done according to the Eurocode 1995 and German timber design code DIN1052. The result of the thesis was the connection details library. The result of the study allows to conclude that by using described connection details, the CLT slabs and DELTABEAM® form a reliable flooring system.
Online Access
Free
Resource Link
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Accuracy Evaluation of Gamma-Method for Deflection Prediction of Partial Composite Beams

https://research.thinkwood.com/en/permalink/catalogue1911
Year of Publication
2018
Topic
Mechanical Properties
Design and Systems
Material
Timber-Concrete Composite
Application
Wood Building Systems
Beams

Numerical Analysis and Its Laboratory Verification in Bending Test of Glue Laminated Timber Pre-Cracked Beam

https://research.thinkwood.com/en/permalink/catalogue2426
Year of Publication
2019
Topic
Mechanical Properties
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Kawecki, Bartosz
Podgórski, Jerzy
Publisher
MDPI
Year of Publication
2019
Country of Publication
Switzerland
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Mechanical Properties
Design and Systems
Keywords
Laboratory Tests
Damage
Finite Element Model
Pine
Softwood
Bonding
Language
English
Research Status
Complete
Series
Materials
Online Access
Free
Resource Link
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10 records – page 1 of 1.