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Study on Shear Performance of CLT Joints Using Long Vise Part 1 Summary of Experiments and Test Pieces

https://research.thinkwood.com/en/permalink/catalogue1009
Year of Publication
2014
Topic
Connections
Material
CLT (Cross-Laminated Timber)
Application
Floors
Walls
Author
Nasu, Hideyuki
Township, Onishi
Karibe, Yuki
Organization
Architectural Institute of Japan
Year of Publication
2014
Country of Publication
Japan
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Floors
Walls
Topic
Connections
Keywords
Floor-Wall Connection
Mid-Rise
Shear Test
Fracture Behavior
Long Vise
Joints
Language
Japanese
Research Status
Complete
Summary
Innovative steel - Cross Laminated Timber (CLT) connections are key elements in developing hybrid steeltimber composite floors with desirable strength and serviceability performance. The performance of floors mainly relies on the load-slip behavior of connections for composite action. The long-term behavior of timber is mainly affected by elastic and mechano-sorptive creep, resulting in a different total slip than the initially observed one. In this study, the long-term load-slip behavior of two different types of connections with pre-tensioned high-strength bolts and dog screws are experimentally assessed at two different stress levels. Furthermore, the effect of grain orientation on the results is studied by considering specimens with parallel and perpendicular grain orientations under sustained loads. Load-slip curves show a stable performance of a composite action over time. Furthermore, an analytical model is fitted to the loadslip vs time data which can be used to predict long-term behavior of floors in future.
Online Access
Free
Resource Link
Less detail

Study on Shear Performance of CLT Joints Using Long Vise Part 2 Result of Experiments, Consideration and Conclusion

https://research.thinkwood.com/en/permalink/catalogue1008
Year of Publication
2014
Topic
Connections
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Floors
Walls
Author
Township, Onishi
Nasu, Hideyuki
Karibe, Yuki
Organization
Architectural Institute of Japan
Year of Publication
2014
Country of Publication
Japan
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Floors
Walls
Topic
Connections
Mechanical Properties
Keywords
Floor-Wall Connection
Joints
Mid-Rise
Shear Test
Fracture Behavior
Long Vise
Language
Japanese
Research Status
Complete
Summary
Innovative steel - Cross Laminated Timber (CLT) connections are key elements in developing hybrid steeltimber composite floors with desirable strength and serviceability performance. The performance of floors mainly relies on the load-slip behavior of connections for composite action. The long-term behavior of timber is mainly affected by elastic and mechano-sorptive creep, resulting in a different total slip than the initially observed one. In this study, the long-term load-slip behavior of two different types of connections with pre-tensioned high-strength bolts and dog screws are experimentally assessed at two different stress levels. Furthermore, the effect of grain orientation on the results is studied by considering specimens with parallel and perpendicular grain orientations under sustained loads. Load-slip curves show a stable performance of a composite action over time. Furthermore, an analytical model is fitted to the loadslip vs time data which can be used to predict long-term behavior of floors in future.
Online Access
Free
Resource Link
Less detail