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10 records – page 1 of 1.

Lateral Load Capacity in a Solid Structure Assembled with Glued-in Rods

https://research.thinkwood.com/en/permalink/catalogue2251
Topic
Connections
Application
Wood Building Systems
Organization
Université du Québec à Chicoutimi
Country of Publication
Canada
Application
Wood Building Systems
Topic
Connections
Keywords
Glued-In Rods
Lateral Load
Lateral Load Resisting System
Research Status
In Progress
Notes
Project contact is Sylvain Ménard at Université du Québec à Chicoutimi
Summary
Assemblies with glued-in rods allow architectural freedom. They are in fact invisible since they are found in the mass of the structural element. Some work has begun to document this type of assembly by considering static tests in single-sided traction and single-sided creep tests (Verdet, 2016). In order to continue this effort to specify the limits of this type of assembly, it is proposed to consider the lateral forces for assemblies with single and multiple rod connections. This project will therefore aim to document the ability of these assemblies to carry lateral loads.
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Cyclic Load Behaviour of Beam-to-Column Glulam Joints Combining Glued-in Rods with Steel Brackets

https://research.thinkwood.com/en/permalink/catalogue2028
Year of Publication
2018
Topic
Connections
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)

Accelerated Curing of Large Scale Glued-in-Rods

https://research.thinkwood.com/en/permalink/catalogue2018
Year of Publication
2018
Topic
Mechanical Properties
Connections
Material
LVL (Laminated Veneer Lumber)

Resistance of Glued-in Rod Connections to Seismic Loads

https://research.thinkwood.com/en/permalink/catalogue2192
Topic
Connections
Seismic
Application
Floors
Frames
Walls
Organization
Université de Sherbrooke
Country of Publication
Canada
Application
Floors
Frames
Walls
Topic
Connections
Seismic
Keywords
Glued-In Rods
Research Status
In Progress
Notes
Project contact is Jean Proulx at Université de Sherbrooke
Summary
While glued-in rods meet a need for refined architectural design, do they respond to a seismic architectural design? Can they prevent destructive damage and ensure recovery efforts given that this system has singular anchor points? Do the braces and diaphragms have the same behavior as in traditional connector systems? Based on the work of Verdet (2016), modeling can identify the a priori behavior followed by a validation test on seismic table.
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Effect of Rod-to-Grain Angle on Capacity and Stiffness of Axially and Laterally Loaded Long Threaded Rods in Timber Joints

https://research.thinkwood.com/en/permalink/catalogue1371
Year of Publication
2018
Topic
Connections
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Author
Cepelka, Martin
Arne Malo, Kjell
Stamatopoulos, Haris
Publisher
Springer Berlin Heidelberg
Year of Publication
2018
Country of Publication
Germany
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Topic
Connections
Mechanical Properties
Keywords
Threaded Rods
Axial Loads
Lateral Loads
Rod-to-Grain
Joints
Boundary Conditions
Load-to-Rod
Language
English
Research Status
Complete
Series
European Journal of Wood and Wood Products
ISSN
1436-736X
Summary
Long threaded rods have recently been widely used as a reinforcement of glued laminated timber in perpendicular to the grain direction. The recent research has thus focused mainly on the withdrawal properties of the threaded rods in the axial direction. Utilizing their large withdrawal stiffness and strength, the threaded rods can also effectively be used as connectors in moment resisting timber joints. Yet, in joints, the threaded rods are often imposed to a non-axial loading, due to inclination of the rod axis to the grain as well as loading direction different from the rod axis. No design models are currently available for the combined axial and lateral loading of the threaded rods. In the present work, the effects of the rod-to-grain and load-to-rod angles on capacity and stiffness of the threaded rods are investigated by use of experiments and finite element models. Based on those, analytical expressions for determining stiffness and capacity of axially and laterally loaded threaded rods are proposed, intended as a basis for practical joint design. Furthermore, effect of various boundary conditions applied at the rod-ends is studied.
Online Access
Free
Resource Link
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Experimental Study on Lateral Resistance of Reinforced Glued-Laminated Timber Post and Beam Structures

https://research.thinkwood.com/en/permalink/catalogue1648
Year of Publication
2016
Topic
Seismic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Author
Xiong, Haibei
Liu, Yingyang
Lam, Frank
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Beams
Topic
Seismic
Mechanical Properties
Keywords
Cyclic Tests
Full Scale
Reinforcement
Lateral Resistance
Strength
Stiffness
Energy Dissipation
Self-Tapping Screws
FRP
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 3471-3478
Summary
In order to study the lateral resistance of reinforced glued-laminated timber post and beam structures, nine cyclic tests on full-scale one-storey, one-bay timber post and beam construction specimens were carried out. Two reinforcement methods (wrapping fiber reinforced polymer (FRP) and implanting self-tapping screws) and two structural systems (simple frame and knee-braced frame) were considered in the experimental tests. Based on the experimental phenomena and test results, feasibility of the reinforcement was discussed, contribution between different methods was evaluated, and the seismic performances of the specimens were studied. Results showed that both the two reinforcement methods could restrain the development of crack, and recover the strength, stiffness and energy dissipation capacity. It also showed that the lateral resistance could be improved significantly when the failed simple frame retrofitted by reinforcing the joint and adding knee-brace, and this approach can be very practical in engineering.
Online Access
Free
Resource Link
Less detail

Study of the Seismic and Dynamic Behavior of Glued Rod Assemblies

https://research.thinkwood.com/en/permalink/catalogue2668
Topic
Mechanical Properties
Seismic
Connections
Application
Frames
Organization
Université Laval
Country of Publication
Canada
Application
Frames
Topic
Mechanical Properties
Seismic
Connections
Keywords
Energy Dissipation
Cyclic Loads
Glued-In-Rod
Beam-Column Connection
Research Status
In Progress
Notes
Project contact is Jean Proulx at Université Laval
Summary
The main objective of the research project is to assess the behavior of bonded rod assemblies under dynamic stresses. These wood / wood connections are used in solid wood frames and allow, among other things, to transfer the moment in beam-column connections. Their ability to dissipate energy under seismic loading will be evaluated by cyclic laboratory tests by varying the sections and configurations of the assemblies. The whole structure must be able to dissipate energy under dynamic loadings (earthquakes, wind) and the demand for ductility in the assemblies is considerable in rigid frame structures. This project will make it possible to characterize the behavior of timber / timber assemblies in glued rods under cyclic loads. The results obtained can be used by the partner for the seismic design of solid wood structures using these connections. Optimization and a better understanding of the dynamic behavior of these assemblies will also increase the safety of solid wood structures, and promote their acceptance in this developing market.
Resource Link
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Experimental Investigation of the Axial Strength of Glued-in Rods in Cross Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue2230
Year of Publication
2018
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Author
Azinovic, Boris
Serrano, Erik
Kramar, Miha
Pazlar, Tomaž
Publisher
Springer Netherlands
Year of Publication
2018
Country of Publication
Netherlands
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Topic
Mechanical Properties
Keywords
Glued-In Rods
Pull-Pull Tests
Failure Mechanisms
Language
English
Research Status
Complete
Series
Materials and Structures
ISSN
1871-6873
Online Access
Free
Resource Link
Less detail

Assessment of the Pull Out Strength of Glued In Rods with Different Test Methods

https://research.thinkwood.com/en/permalink/catalogue1667
Year of Publication
2016
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Author
Rajcic, Vlatka
Stepinac, Mislav
Košcak, Janko
Damjanovic, Domagoj
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Glulam (Glue-Laminated Timber)
Topic
Mechanical Properties
Keywords
Glued-In Rods
Pull-Out Strength
Pull-Pull Tests
Pull-Compression Tests
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 3795-3802
Summary
Glued-in rods (GiR) are an effective way to connect timber elements from both load bearing capacity/stiffness and aesthetic point of view. This method is also widely accepted as a method for reinforcement of the new and existing timber structures. Although GiR are widely used in timber structures, there is still no unified European test standards, product standards or design equations for such connections. At present, there are several test methods and procedures applied in research and development. In this paper two different methods for obtaining pull-out strength are presented. Furthermore, experimental investigation was conducted and results obtained from both methods are mutually compared. Pull – compression test procedure is the most common setup for experimental investigation, however this setup is sometimes not representative and it is often characterized as unreliable because it does not quite good correspond to practical applications. The second examined test procedure was pull-pull. Within the experimental investigation, total number of 36 specimens were tested and results obtained from both methods are shown, discussed and compared in this paper.
Online Access
Free
Resource Link
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Lateral Testing of Glued Laminated Timber Tudor Arch

https://research.thinkwood.com/en/permalink/catalogue1722
Year of Publication
2016
Topic
Seismic
Mechanical Properties
Material
Glulam (Glue-Laminated Timber)
Application
Arches
Author
Rammer, Douglas
Line, Philip
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
Glulam (Glue-Laminated Timber)
Application
Arches
Topic
Seismic
Mechanical Properties
Keywords
Full Scale
Lateral Load
Damping
Deformation
Failure Modes
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 4638-4646
Summary
Glued laminated timber Tudor arches have been in wide use in the United States since the 1930s, but detailed knowledge related to seismic design in modern U.S. building codes is lacking. FEMA P-695 (P-695) is a methodology to determine seismic performance factors for a seismic force resisting system. A limited P-695 study for...
Online Access
Free
Resource Link
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10 records – page 1 of 1.