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11 records – page 1 of 2.

Bending Beams Made of Cross Laminated Timber with Load in Board Plane

https://research.thinkwood.com/en/permalink/catalogue1143
Year of Publication
2013
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Beams
Author
Flaig, Marcus
Organization
Karlsruher Institut für Technologie
Year of Publication
2013
Country of Publication
Germany
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Application
Beams
Topic
Mechanical Properties
Keywords
bending resistance
Shear Load Capacity
Deformations
Language
German
Research Status
Complete
Summary
In der vorliegenden Arbeit wurden die Anwendungsmöglichkeiten von Biegeträgern aus Brettsperrholz bei Beanspruchung in Plattenebene untersucht. Mit Hilfe numerischer und analytischer Methoden wurden die für die Bemessung von Brettsperrholzträgern erforderlichen Ansätze für den Nachweis der Biege- und der Schubtragfähigkeit sowie zur Berechnung der Verformungen entwickelt und hergeleitet.
Online Access
Free
Resource Link
Less detail

The Bending Properties of Bamboo Strand Board I-Beams

https://research.thinkwood.com/en/permalink/catalogue2306
Year of Publication
2019
Topic
Design and Systems
Mechanical Properties
Material
Other Materials
Application
Beams
Wood Building Systems
Author
Sun, Yuhui
Jiang, Zehui
Liu, Huangrong
Sun, Zhengjun
Fang, Changhua
Publisher
Springer
Year of Publication
2019
Country of Publication
Singapore
Format
Journal Article
Material
Other Materials
Application
Beams
Wood Building Systems
Topic
Design and Systems
Mechanical Properties
Keywords
Stiffness
Strength
Load Capacity
Failure Mode
Language
English
Research Status
Complete
Series
Journal of Wood Science
Online Access
Free
Resource Link
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Bond Behavior Between Softwood Glulam and Epoxy Bonded-In Threaded Steel Rod

https://research.thinkwood.com/en/permalink/catalogue450
Year of Publication
2015
Topic
Design and Systems
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Author
Ling, Zhibin
Liu, Weiqing
Lam, Frank
Yang, Huifeng
Lu, Weidong
Publisher
American Society of Civil Engineers
Year of Publication
2015
Country of Publication
United States
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Topic
Design and Systems
Mechanical Properties
Keywords
Bonding Behavior
Failure Modes
Joints
Load Capacity
Softwood
Threaded Steel Rod
Pull-Pull
Language
English
Research Status
Complete
Series
Journal of Materials in Civil Engineering
Summary
This study aims to develop an improved understanding of the interfacial bond behavior of softwood glulam joints with bonded-in threaded steel rod. A total of 39 glulam joints with bonded-in single-threaded steel rods were tested to failure in the pull-pull configuration. The test results were presented in term of failure modes, load-relative movement response, pullout strength, and the corresponding slip. The distributions of bonded-in rod axial strain, interfacial bond stress, and relative movement were also analyzed to evaluate the local bond stress– relative movement response in the bond line. The results confirmed that the bond-relative movement response is dependent on the locations along the anchorage length, and the bond-relative movement responses located near both the loaded end and the anchorage end were observed to be stiffer than those at other locations. Finally, the predictions for the load capacity of the glulam joints with bonded-in threaded steel rod were carried out based on several existing empirical formulas.
Online Access
Free
Resource Link
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Cross-Laminated Timber Under In-Plane Bending Stress

https://research.thinkwood.com/en/permalink/catalogue973
Year of Publication
2013
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Author
Flaig, Marcus
Organization
Karlsruher Institut für Technologie
Year of Publication
2013
Country of Publication
Germany
Format
Thesis
Material
CLT (Cross-Laminated Timber)
Topic
Mechanical Properties
Keywords
Deformation
Shear Load Capacity
bending resistance
Language
German
Research Status
Complete
Summary
In der vorliegenden Arbeit wurden die Anwendungsmöglichkeiten von Biegeträgern aus Brettsperrholz bei Beanspruchung in Plattenebene untersucht. Mit Hilfe numerischer und analytischer Methoden wurden die für die Bemessung von Brettsperrholzträgern erforderlichen Ansätze für den Nachweis der Biege- und der Schubtragfähigkeit sowie zur Berechnung der Verformungen entwickelt und hergeleitet.
Online Access
Free
Resource Link
Less detail

Experimental Assessment of the Fire Resistance Mechanisms of Timber–Steel Composites

https://research.thinkwood.com/en/permalink/catalogue2462
Year of Publication
2019
Topic
Fire
Mechanical Properties
Material
Steel-Timber Composite
Glulam (Glue-Laminated Timber)
Author
Le, Truong Di Ha
Tsai, Meng-Ting
Publisher
MDPI
Year of Publication
2019
Country of Publication
Switzerland
Format
Journal Article
Material
Steel-Timber Composite
Glulam (Glue-Laminated Timber)
Topic
Fire
Mechanical Properties
Keywords
Fire Resistance
Load Capacity
Charring Rate
Eurocode 5
Language
English
Research Status
Complete
Series
Materials
Online Access
Free
Resource Link
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Experimental Investigation of Flexural Behavior of Glulam Beams Reinforced with Different Bonding Surface Materials

https://research.thinkwood.com/en/permalink/catalogue1312
Year of Publication
2018
Topic
Mechanical Properties
Connections
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Uzel, Murat
Togay, Abdullah
Anil, Özgür
Sögütlü, Cevdet
Publisher
ScienceDirect
Year of Publication
2018
Country of Publication
Netherlands
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Mechanical Properties
Connections
Keywords
Epoxy
Polyurethane
Adhesives
Load-Displacement
Ultimate Load Capacity
Ductility
Stiffness
Energy Dissipation
Failure Mechanisms
Language
English
Research Status
Complete
Series
Construction and Building Materials
Summary
In this study, flexuralbehaviors of glue laminated timber beams manufactured from Pinussylvestristree were investigated by comparing the results with those of massive timber beams. The main variables considered in the study were number of laminations, types of adhesive materials and reinforcement nets used in the lamination surfaces. In scope of the experimental study, glue laminated beams with 5 and 3 lamination layers were manufactured with 90 x 90 mm beam sections. In the lamination process epoxy and polyurethane glue were used. Morever, in order to improve the bond strength at the lamination surface, aluminium, fiberglass and steel wire nets were used at the lamination surfaces. Load–displacement responses, ultimate capacities, ductility ratios, initial stiffness, energy dissipation capacities and failure mechanisms of glue laminated beams were compared with those of massive beams. It was observed that the general bending responses of glue laminated beams were better than those of massive beams. In addition to that the use of reinforcement nets at the lamination surfaces increased the ultimate load capacities of the tested beams. The highest ultimate load capacities were oberved from the tests of glue laminated beams manufactured using five laminated layers and retrofitted with polyurethane glue using steel wire reinforcement nets, in the direction normal to the lamination surface. Finally, the finite element simulations of some test specimens were performed to observe the accuracy of finite element technology in the estimation of ultimate capacities of glue laminated timber beams.
Online Access
Free
Resource Link
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Experimental Study of the Bending Performance of Hollow Glulam Beams

https://research.thinkwood.com/en/permalink/catalogue1437
Year of Publication
2018
Topic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Shang, Peng
Sun, Youfu
Zhou, Dingguo
Qin, Kai
Yang, Xiaolin
Publisher
Society of Wood Science and Technology
Year of Publication
2018
Country of Publication
United States
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Mechanical Properties
Keywords
Larch
Four Point Bending Test
Bending Stiffness
Load Capacity
Midspan Deflection
Failure Modes
Modulus of Elasticity
Language
English
Research Status
Complete
Series
Wood and Fiber Science
ISSN
0735-6161
Summary
Hollow glilam beam has some advantages that the traditional solid glulam beam does not have, such as the convenience for wiring construction and comparably light weight. Four-point bending tests of three solid glulam beams and 15 hollow glulam beams with various sizes of rectangular holes produced from small-diameter larch timber were conducted to investigate the influence of the hollow ratio and wall thickness on bending stiffness and load capacity. The midspan deflection, cross-section strain, and ultimate load were obtained from the tests, and the detailed failure models and apparent MOE for all specimens are reported. Hollow glulam beams with the hollow ratio ranged from 25% to 40%, and the wall thickness greater than 20m after the assumption of plane section under bending moment. The apparent bending stiffness and ductility of hollow glulam beam were less than those of solid glulamb beam, and the apparent MOE is 0.86 times the elastic modulus value calculated by theory of elasticity. In addition, a calculation formula for the ultimate bending moment is proposed.
Online Access
Free
Resource Link
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Laboratory and Field Evaluation of a Composite Glued-Laminated Girder to Deck Connection TR-680, 2019

https://research.thinkwood.com/en/permalink/catalogue2477
Year of Publication
2019
Topic
Connections
Mechanical Properties
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans

Novel Internally LVL-Reinforced Glued Laminated Timber Beams with Large Holes

https://research.thinkwood.com/en/permalink/catalogue1303
Year of Publication
2018
Topic
Design and Systems
Mechanical Properties
Material
LVL (Laminated Veneer Lumber)
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Aicher, Simon
Tapia, Cristóbal
Publisher
ScienceDirect
Year of Publication
2018
Country of Publication
Netherlands
Format
Journal Article
Material
LVL (Laminated Veneer Lumber)
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Design and Systems
Mechanical Properties
Keywords
Holes
Reinforcement
Beech
Load Capacity
Language
English
Research Status
Complete
Series
Construction and Building Materials
Summary
A novel timber composite is presented, consisting of glued laminated timber (GLT) from softwoods and intercalated cross-layered plates of laminated veneer lumber (LVL) made of hardwood species, specifically beech. The structure is especially suited for beams with multiple, large rectangular holes, where the LVL acts as a highly efficient internal reinforcement and contributes to a damage-tolerant ultimate load behavior. The load capacity of the composite beam is not induced by the stress concentrations at the corners of the hole, which, in contrast to generic GLT, lead to a sudden propagation of cracks and brittle failure. It is shown that the structure, including the holes, can be designed analytically in a transparent manner by using beam theory, a parallel system approach, and modifications from FEM analysis for the verification of tensile forces at the hole periphery. The composite, firstly used in a recent multi-story building in Australia, significantly improves the competitiveness of timber in building works, which have been limited to steel and reinforced concrete structures.
Online Access
Free
Resource Link
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Structural Performance of Hybrid Timber Connections with Varying Bolt Patterns at Ambient and Elevated Temperatures

https://research.thinkwood.com/en/permalink/catalogue2222
Year of Publication
2019
Topic
Connections
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Owusu, Aba
Organization
Carleton University
Year of Publication
2019
Country of Publication
Canada
Format
Thesis
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Connections
Keywords
Ultimate Load Capacity
Steel Bolts
Wood-Steel-Wood
Language
English
Research Status
Complete
Online Access
Free
Resource Link
Less detail

11 records – page 1 of 2.