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Experimental Behaviour of Structural Size Glued Laminated Guadua Bamboo Members

https://research.thinkwood.com/en/permalink/catalogue528
Year of Publication
2014
Topic
Mechanical Properties
Material
Other Materials
Application
Beams
Columns
Author
Correal, Juan
Echeverry, Juan
Yamin, Luis
Ramírez, Fernando
Year of Publication
2014
Format
Conference Paper
Material
Other Materials
Application
Beams
Columns
Topic
Mechanical Properties
Keywords
Bending Strength
Flexural Tests
Compression Tests
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
This study presents the experimental evaluation of the behaviour of beams and columns made of Glued Laminated Guadua (GLG) bamboo. Flexural tests were conducted on structural size beams of various span lengths and two lamination orientations (horizontal and vertical) in order to evaluate the different capacities achieved according to the predominant induced stresses, bending or shear. Experimental results indicated a reduction of bending strength as the member’s size increased whereas lamination in the vertical direction presented 12% higher values of modulus of rupture (MOR), and 9% higher values of modulus of elasticity (MOE) compared to equivalent results for lamination in the horizontal direction. Additionally, compression tests were performed on structural size columns with various slenderness ratios and two lamination orientations. Although minor differences were found for lamination orientation, lower capacities were observed as the slenderness ratio increased. This experimental data is expected to be used in order to propose adjustment factors for structural size beams as well as the determination of the column stability factor.
Online Access
Free
Resource Link
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Fully Reversible Reinforcement of Softwood Beams with Unbonded Composite Plates

https://research.thinkwood.com/en/permalink/catalogue210
Year of Publication
2016
Topic
Design and Systems
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Borri, Antonio
Speranzini, Emanuela
Castori, Giulio
Corradi, Marco
Publisher
ScienceDirect
Year of Publication
2016
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Design and Systems
Mechanical Properties
Keywords
Failure
Flexural Tests
Glass Fiber Reinforced Polymer
Modulus of Rupture
Reinforcement
Softwood
finite element method
Numerical model
Research Status
Complete
Series
Composite Structures
Summary
In this paper, results of flexure tests aimed at improving the structural behavior of softwood beams reinforced with unglued composite plates and at developing an effective alternative to the use of organic resins are presented. The addition of modest ratios of GFRP (Glass Fiber Reinforced Polymer) composite strengthening can prevent tension failure in timber beams. However the application of organic matrices presents problems of reversibility, compatibility and durability with timber and poor performance at high temperatures. The increment in capacity and stiffness and the analysis of the failure modes is the central focus of this paper. The experimental campaign is dealing with a significant number of un-reinforced and reinforced beams strengthened with unbonded GFRP plates. A 3-dimensional finite element model is also presented for simulating the non-linear behavior of GFRP-reinforced softwood beams. The ability of the numerical model to reproduce experimental results for the load–deflection curves is validated.
Online Access
Free
Resource Link
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Strength, Stiffness, and Stability of Solid Continua: Gravity Loading Scenario on Cross-Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue2294
Year of Publication
2019
Topic
Design and Systems
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems