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Finite Element Models of Effects of Moisture on Bolt Connection Properties of Glulam

https://research.thinkwood.com/en/permalink/catalogue539
Year of Publication
2014
Topic
Connections
Mechanical Properties
Moisture
Material
Glulam (Glue-Laminated Timber)
Author
Kiwelu, Henry
Smith, Ian
Asiz, Andi
Year of Publication
2014
Country of Publication
Canada
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Topic
Connections
Mechanical Properties
Moisture
Keywords
Finite Element Model
Moisture Content
Stiffness
Load Bearing Capacity
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
Connections are critical parts of timber structures, transmitting static and dynamic forces between structural elements. Extensive experiments were conducted and detailed Finite Element (FE) models were developed. The experimental results showed that the stiffness and load-bearing capacity of the joints is reduced by post-fabrication wetting and is increased by post-fabrication drying. It was clear from those test results that changes in mechanical properties were greater than could be explained by effects moisture content changes have on material properties. Three-dimensional (3-D) continuum FE models for connection loaded parallel to grain were successfully developed based on analysis of connections having a single ½ inch (12.7 mm) or ¾ inch (19.1 mm) diameter bolt. The model included the nonlinearity of material and contact analysis between wood and steel and revealed that the connection capacity can be well predicted by using FE techniques.
Online Access
Free
Resource Link
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