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Load Bearing Behaviour of Self-Tapping Screws in Laser-Drilled Guideholes

https://research.thinkwood.com/en/permalink/catalogue1501
Year of Publication
2016
Topic
Connections
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
General Application
Author
Martin Trautz
Christoph Koj
Hermann Uchtmann
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
General Application
Topic
Connections
Mechanical Properties
Keywords
Self-Tapping Screws
Laser Drilling
Pull-Out Strength
Guideholes
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 270-277
Abstract
Self-tapping screws, used as efficient reinforcements or connectors for timber and glulam structures, tend to “stray” from the designated axis when long and slender screws are applied. To provide a highly precise installation, the predrilling of guideholes using laser radiation has been examined. While laser cutting is already...
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Long-Term Behaviour of Timber Connections with Self-Tapping Screws in Outdoor Climate

https://research.thinkwood.com/en/permalink/catalogue1513
Year of Publication
2016
Topic
Mechanical Properties
Serviceability
Material
Glulam (Glue-Laminated Timber)
Application
Frames
Author
Christoph Koj
Martin Trautz
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Frames
Topic
Mechanical Properties
Serviceability
Keywords
Long-term
Outdoor Climate
Self-Tapping Screws
Load Bearing Capacity
Bending Moments
Service Class
Creep
Eurocode 5
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 372-379
Abstract
The Chair of Structures and Structural Design of the RWTH Aachen University, in cooperation with the Institute of Building Materials Research Aachen (ibac) and SPAX® International, has developed timber connections using self-tapping screws as reinforcing and joining elements. The focus was put on rigid frame corners that achieved...
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Reinforcing Glued Laminated Timber with AB Initio Embedded Steel Sheets

https://research.thinkwood.com/en/permalink/catalogue1758
Year of Publication
2016
Topic
Connections
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
General Application
Author
Christoph Koj
Martin Trautz
Andrija Pranjic
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
General Application
Topic
Connections
Mechanical Properties
Keywords
Reinforcement
Steel Sheets
Joints
Ductile
Load-Bearing Behavior
Adhesives
Strength
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 5049-5057
Abstract
To enable high strength connections of glulam elements a new method of reinforcing the glulam with steel sheets has been developed. The steel sheets are installed ‘ab initio’ during the production process of the glulam. In the conducted series of test suitable adhesives and treatments of the steel surface have been selected and evaluated...
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