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5 records – page 1 of 1.

Cross-Laminated Timber Fasteners Solutions for Tall Wood Buildings

https://research.thinkwood.com/en/permalink/catalogue2197
Topic
Seismic
Connections
Material
CLT (Cross-Laminated Timber)
Application
Floors
Shear Walls
Walls
Organization
TallWood Design Institute
Material
CLT (Cross-Laminated Timber)
Application
Floors
Shear Walls
Walls
Topic
Seismic
Connections
Keywords
Wall-to-Floor
Wall-to-Wall
Wall-to-Foundation
Strength Properties
Screw Connectors
Research Status
In Progress
Notes
Project contact is Arijit Sinha at Oregon State University
Summary
Constructing buildings with CLT requires development of novel panel attachment methods and mechanisms. Architects and engineers need to know the engineering strength properties of connected panels, especially in an earthquake prone area. This project will improve knowledge of three types of wall panel connections: wall-to-floor, wall-to-wall, and wall-to-foundation. Testing will determine the strength properties of metal connectors applied with diffferent types and sizes of screw fasteners. The data will be used to develop a modeling tool that engineers can use when designing multi-story buildings to be constructed with CLT panels.
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Estimation of Strength Properties of Tensile Bolt Joint for CLT Construction

https://research.thinkwood.com/en/permalink/catalogue1859
Year of Publication
2016
Topic
Connections
Design and Systems
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Suzuki, Kei
Kobayashi, Kenji
Aoki, Kenji
Inayama, Masahiro
Tsuchimoto, Takahiro
Publisher
J-STAGE
Year of Publication
2016
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Connections
Design and Systems
Keywords
Tensile Bolts
Strength Properties
Stiffness
Compression
Research Status
Complete
Series
Journal of Structural and Construction Engineering: Transactions of AIJ
Summary
There are various joint methods of CLT such as LSB joints, screw joints with steel side-plates, and so on. In this study, we examined tensile bolt joint which is one of the effective joint methods of the end of panel when the wall panel showed rocking behavior, assuming architectural structure using the panels of around 1-2m in width. 1) Comparison for calculated results and test results on partial compression of CLT materials. 2) Test results of tensile bolt joint with CLT. 3) Proposal of design method for estimating strength properties of tensile bolt joint with CLT and the verification of its suitability.
Online Access
Free
Resource Link
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Mitigating Fire Performance Concern through Fire Endurance Modeling

https://research.thinkwood.com/en/permalink/catalogue2263
Topic
Fire
Material
CLT (Cross-Laminated Timber)
Application
Floors
Hybrid Building Systems
Organization
TallWood Design Institute
Material
CLT (Cross-Laminated Timber)
Application
Floors
Hybrid Building Systems
Topic
Fire
Keywords
Strength Properties
Stiffness
Failure
Research Status
In Progress
Notes
Contact: Arijit Sinha, Oregon State University
Summary
The project will take the connection systems from the Composite CLT-Concrete Floor Systems for Tall Building Design project and test them over elevated temperatures to evaluate strength properties as well as how the stiffness and strength degrade at different levels of elevated temperatures. This information will be implemented into fire models and will help to predict things like failure time.
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Possibility to Use Short Sawn Timber in the Production of Glued Laminated Beams

https://research.thinkwood.com/en/permalink/catalogue3021
Year of Publication
2022
Topic
Mechanical Properties
Market and Adoption
Material
Glulam (Glue-Laminated Timber)
Author
Dziurka, Dorota
Kulinski, Marcin
Trocinski, Adrian
Mirski, Radoslaw
Organization
Poznan University of Life Sciences
Editor
Corradi, Marco
Publisher
MDPI
Year of Publication
2022
Format
Journal Article
Material
Glulam (Glue-Laminated Timber)
Topic
Mechanical Properties
Market and Adoption
Keywords
Structural Glulam Elements
Structural Beams
Strength Properties
Research Status
Complete
Series
Materials
Summary
Numerous studies have shown that the geometry of micro-joints significantly affects the strength of the so joined timber element. The bending strength increases by creating a larger bonding area by increasing the length of the wedge joint. Although this type of joint has been successfully used for many years, it can still be troublesome to make. For these reasons, the present study investigated an easy-to-fabricate wedge joint, which we folded during the beams’ formation and glued with the same adhesive as the individual lamellas. Although the research has not fully answered all the questions relevant to both scientific and technological curiosity, it indicates the great potential of this solution. Following the principle adopted in the ongoing wood optimisation work, we concluded that the beams of the target cross-section should be produced, and it should only be possible to cut them to a certain length. In this approach, we only removed defects at critical points for the beam structure and, in this way, up to 30% of the timber processed could be saved or better utilised.
Online Access
Free
Resource Link
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Strength Properties of CLT Composed of Sugi Laminations : (9) Small Scale CLT Shear Wall

https://research.thinkwood.com/en/permalink/catalogue984
Year of Publication
2013
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Author
Watanabe, Hiroshi
Araki, Yasuhiro
Nakajima, Shiro
Miyattaki, Atsushi
Yasumura, Motoi
Ando, Naoto
Kaiko, Naoto
Organization
Architectural Institute of Japan
Year of Publication
2013
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Topic
Mechanical Properties
Keywords
In-Plane Shear Force
Strength Properties
Sugi
Research Status
Complete
Summary
An investigation was carried out on CLT panels made from Sitka spruce in order to establish the effect of the thickness of CLT panels on the bending stiffness and strength and the rolling shear. Bending and shear tests on 3-layer and 5-layer panels were performed with loading in the out-of-plane and in-plane directions. ‘Global’ stiffness measurements were found to correlate well with theoretical values. Based on the results, there was a general tendency that both the bending strength and rolling shear decreased with panel thickness. Mean values for rolling shear ranged from 1.0 N/mm2 to 2.0 N/mm2.
Online Access
Free
Resource Link
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