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Behaviour of Parallel Bamboo Strand Lumber Under Compression Loading — An Experimental Study

https://research.thinkwood.com/en/permalink/catalogue2514
Year of Publication
2019
Topic
Design and Systems
Mechanical Properties
Material
PSL (Parallel Strand Lumber)
Other Materials
Application
Wood Building Systems

Compressive Behavior of Glulam Columns with Initial Cracks Under Eccentric Loads

https://research.thinkwood.com/en/permalink/catalogue1463
Year of Publication
2018
Topic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Columns
Author
Zhang, Jing
He, Minjuan
Li, Zheng
Publisher
Springer Berlin Heidelberg
Year of Publication
2018
Country of Publication
Germany
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Columns
Topic
Mechanical Properties
Keywords
Cracks
Compression Loads
Failure Modes
Load Bearing Capacity
Numerical Model
Language
English
Research Status
Complete
Series
International Journal of Advanced Structural Engineering
ISSN
2008-6695
Summary
This paper investigates the mechanical performance of longitudinally cracked glulam columns under eccentric compression loads. Experimental investigation was conducted to explore the influence of initial cracks on the failure modes and load bearing capacity of glulam columns. Two different crack patterns named DC and IC, and two column lengths (i.e. 600 and 1100 mm) were considered in the experiments. It was indicated that these two crack patterns reduced the capacity of slender glulam columns and the difference of failure modes was observed between glulam columns with and without initial cracks. Further, a numerical model was developed and validated by the test results. With the application of cohesive zone material model, the propagation of initial cracks could be considered in the numerical modeling. A parametric study was carried out by the verified model and the influence of crack lengths and crack locations was further investigated. From the numerical analysis, it was found that through cracks reduced the capacity of glulam columns significantly. Also, crack location impacts the capacity of glulam columns and the extent of impact relates to the slenderness ratio of the columns, while cracks with different lengths have similar influence on the capacity of columns.
Online Access
Free
Resource Link
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Production and In-Plane Compression Mechanics of Alternatively Angled Layered Cross-Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue1843
Year of Publication
2018
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems