Skip header and navigation

3 records – page 1 of 1.

Experimental Verification of Design Procedure for Elements from Cross-Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue1353
Year of Publication
2017
Topic
Mechanical Properties
Design and Systems
Material
CLT (Cross-Laminated Timber)
Author
Buka-Vaivade, Karina
Serdjuks, Dmitrijs
Goremikins, Vadims
Vilguts, Aivars
Pakrastins, Leonids
Publisher
ScienceDirect
Year of Publication
2017
Country of Publication
Netherlands
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Topic
Mechanical Properties
Design and Systems
Keywords
Finite Element Model
Static Load
Transformed Section Method
Language
English
Research Status
Complete
Series
Procedia Engineering
Summary
Cross-laminated timber is widely used for load-bearing walls and panels of multi-storey timber buildings as well as for decking structure of pedestrian and road bridges. Design procedure for elements from cross-laminated timber was considered and validated by the experiment and FEM. The design procedure is based on the transformed section method. Eight cross-laminated timber panels with span equal to 1.8 m were experimentally checked under the action of static load. The difference between the experimentally and analytically obtained results is within the limits from 3.3 up to 20%.
Online Access
Free
Resource Link
Less detail

Improvement of Prediction Accuracy of Glulam Modulus of Elasticity by Considering Neutral Axis Shift in Bending

https://research.thinkwood.com/en/permalink/catalogue1467
Year of Publication
2009
Topic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Author
Shim, Kug-Bo
Kim, Kwang-Mo
Park, Joo-Saeng
Publisher
Society of Wood Science and Technology
Year of Publication
2009
Country of Publication
United States
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Topic
Mechanical Properties
Keywords
Modulus of Elasticity
Transformed Section Method
Language
English
Research Status
Complete
Series
Wood and Fiber Science
Summary
There is a discrepancy between the estimated modulus of elasticity (MOE) of glulam based on the dynamic MOE of laminates and measured MOE. The discrepancy is greater for glulam manufactured with mixed species. This study was undertaken to reduce the discrepancy between those MOE values. The error rate of predicting MOE of glulam by the transformed section method, without considering tension and compression modulus differences, was about 30%. To estimate the MOE of glulam more accurately, the differences between compression and tension modulus should be taken into account in the transformed section method. The measured tensile and compressive strain at the center of glulam under a bending load showed the movement of neutral axis toward the tension side of glulam. Therefore, the compression and tension modulus differences for each species should be identified before estimating the MOE of glulam. The prediction of glulam MOE was improved significantly by reflecting the ratio of compression and tension modulus vs dynamic MOE of laminates. The outermost of laminates in the compression side under bending load experienced plastic behavior and failure. This caused the neutral axis to move to the tension side and increased tension stress to cause the glulam to fail abruptly in tension. To improve the bending performance of glulam, reinforcing compression laminates need to be considered.
Online Access
Free
Resource Link
Less detail

Using Non-Destructive Testing to Predict the Mechanical Properties of Glued Laminated Poplar

https://research.thinkwood.com/en/permalink/catalogue2456
Year of Publication
2019
Topic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Martins, Carlos
Dias, Alfredo
Cruz, Helena
Publisher
ICE Publishing
Year of Publication
2019
Country of Publication
Scotland
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Mechanical Properties
Keywords
Poplar
Non-Destructive Methods
Longitudinal Vibration Method
Transformed Section Method
Modulus of Elasticity
Bending Strength
Full-Scale
Language
English
Research Status
Complete
Series
Proceedings of the Institution of Civil Engineers - Structures and Buildings
ISSN
1751-7702
Online Access
Free
Resource Link
Less detail