Skip header and navigation

2 records – page 1 of 1.

Experimental Investigation of Bending Behavior of Timber-To-Timber Composite-Section Beams

https://research.thinkwood.com/en/permalink/catalogue690
Year of Publication
2014
Topic
Design and Systems
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Salem, Osama
Year of Publication
2014
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Design and Systems
Keywords
Self-Tapping Screws
Flexural Stiffness
CLT-to-Glulam
Structural Behaviour
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
Wood has long been in demand as a competent building material due to its beauty, economy, and ease of construction. Excellent material properties are exhibited by a number of new engineered wood products such as gluedlaminated (Glulam) and cross-laminated timbers (CLT). New experimental data on the structural behaviour of CLT-toGlulam composite-section beams is presented in this paper. Four large-scale test assemblies composed of two different engineered wood sections were tested. Beam composite sections were built of a top flange part made of a cross-laminated timber slab and a web part made of a Glulam rectangular section. The two parts forming each beam section were connected together using 5/16 self-tapping screws in order to create composite action. Results from this research showed that reducing the spacing distance between screws considerably increased the flexural stiffness of the CLT-to-Glulam composite beams.
Online Access
Free
Resource Link
Less detail

Flexural Bending Behaviour of Built-Up Glulam Box-Section Beams

https://research.thinkwood.com/en/permalink/catalogue2064
Year of Publication
2018
Topic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Verma, Nishant
Salem, Osama
Organization
Lakehead University
Year of Publication
2018
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Mechanical Properties
Keywords
Box Beams
Four Point Bending Test
Self-Tapping Screws
Flexural
Bending Strength
Conference
World Conference on Timber Engineering
Research Status
Complete
Summary
The rising popularity of engineered-wood products, such as glued-laminated timber (glulam), as analternative to traditional sawn lumber encourages to fabricate glulam built-up sections that can expand the horizon of the use of this sustainable material in the construction of mid- and high-rise timber buildings. As a pilot investigation into the subject, five full-size built-up glulam box-section beam assemblies were experimentally examined under four-point flexural bending. Self-tapping screws were used in different patterns to form three beam assembly configurations. Each beam built-up section was made of four glulam panels, each of 44-mm thickness except the bottom flange panel that had 86-mm thickness. Experimental testing showed that reducing the spacing from 800 mm to 200 mm of the screws connecting the built-up section’s top and bottom flange panels to the web panels increased the beam flexural bending strength by about 45%. While reducing the spacing from 200 mm to 100 mm only for the screws connecting the bottom flange to the web panels over a distance equal to one-third beam span length from each support, where the maximum shear stresses existed, increased the beam flexural bending strength by an additional 10%.
Online Access
Free
Resource Link
Less detail