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12 records – page 1 of 2.

An Analytical Estimation on Seismic Performance of 3 Story Construction with "Sugi" CLT Panels Depending on Connection Properties

https://research.thinkwood.com/en/permalink/catalogue487
Year of Publication
2014
Topic
Seismic
Connections
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Miyake, Tatsuya
Matsumoto, Kazuyuki
Tsuchimoto, Takahiro
Isoda, Hiroshi
Kawai, Naohito
Yasumura, Motoi
Year of Publication
2014
Country of Publication
Canada
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Seismic
Connections
Keywords
Dynamic Properties
Static Properties
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
In this paper, the relations between the load-deformation property of the CLT connections and the seismic performance of the 3 story CLT construction are analytically discussed. The static and the dynamic properties of the CLT connections led each from the static and the dynamic tests were obviously different, however the analytical results based on these properties were agree each with the results of the static and the dynamic tests proving the adequateness of estimated properties. The further study on the dynamic effects of CLT connections is necessary.
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Development and Evaluation of CLT Shear Wall Using Drift Pinned Joint

https://research.thinkwood.com/en/permalink/catalogue673
Year of Publication
2014
Topic
Connections
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Author
Nakashima, Shoichi
Kitamori, Akihisa
Komatsu, Kohei
Que, Zeli
Isoda, Hiroshi
Year of Publication
2014
Country of Publication
Canada
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Topic
Connections
Mechanical Properties
Keywords
Cedar
Shear Failure
Drift Pin Joint
Steel Connectors
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
The connectors for the CLT shear wall with drift pin joint were suggested. The wall composed of five layers Japanese cedar CLT, steel connectors and drift pins (diameter d = 16mm). The horizontal shear performances of the walls were evaluated by static experiment and 2D frame analysis. The experimental parameter was number and position of drift pins. Characteristic failure was shear failure on the border of the laminae. There were good agreement on initial stiffness, yield load and second stiffness between experiment and calculation.
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Development of CLT Shear Frame Using Metal Plate Insert Connections

https://research.thinkwood.com/en/permalink/catalogue697
Year of Publication
2014
Topic
Connections
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Author
Kitamori, Akihisa
Nakashima, Shoichi
Isoda, Hiroshi
Year of Publication
2014
Country of Publication
Canada
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Topic
Connections
Mechanical Properties
Keywords
Failure Mode
Joints
Steel Plate
Strength
Steel Connectors
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
The purpose of this study is to develop a high strength leg joint for shear wall made of small size cross laminated timber panel in a simple system. The joint of CLT in which steel plate was inserted in the central slit and fixed by high strength bolt at inside of short steel pipes was proposed. In order to grasp the failure mode and strength of CLT member, material tests on embedment and shear were carried out using small CLT blocks. The test results indicated that there is few reinforce effect by cross bonding of each lamina. It was concluded that the precise estimation of the strength of CLT member is important in order to develop the joint proposed in this paper.
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Dynamic and Static Lateral Load Tests on Full-Sized 3-Storey CLT Construction for Seismic Design

https://research.thinkwood.com/en/permalink/catalogue481
Year of Publication
2014
Topic
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Tsuchimoto, Takahiro
Kawai, Naohito
Yasumura, Motoi
Miyake, Tatsuya
Isoda, Hiroshi
Tsuda, Chihiro
Miura, Sota
Murakami, Satoshi
Nakagawa, Takafumi
Year of Publication
2014
Country of Publication
Canada
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Seismic
Keywords
Shake Table Test
Lateral Load Test
Shear Displacement
Joint Deformation
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
The Japanese domestic forests have never been maintained enough, and it was a great fear that the multiple functions of the forest such as watershed conservation, the land conservation, and so on has been declined. The construction employing the cross laminates timber (CLT) panels was offered as a method of large scale building in domestic and foreign countries. However, the seismic design method of CLT panel construction has never completed. So, in order to consider the seismic design method, the shaking table tests and static lateral load tests were conducted to the modelized CLT panel construction.
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Effect of Array on Tensile Load Carrying Capacity CLT Drift Pinned Joint

https://research.thinkwood.com/en/permalink/catalogue1532
Year of Publication
2016
Topic
Connections
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Author
Nakashima, Shoichi
Kitamori, Akihisa
Araki, Yasuhiro
Isoda, Hiroshi
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Connections
Mechanical Properties
Keywords
Reduction Coefficients
Dowel-Type Connections
Drift Pinned Joint
Tensile Tests
Stiffness
Proportional Limit Load
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 772-779
Summary
A reduction coefficient is applied in usual design of multiple dowels type connections. The numbers of stiffeners in row is one of important factor to decide this coefficient. CLT drift pinned joint showed small orthotropy against in plane tensile load. Tensile tests of multiple drift pins joints were performed to evaluate the effect of array. Numbers of drift pins n in each specimen were same (n=12), but the arrangements were different (2 x 6, 3 x 4, 4 x 3, 6 x 2). Also the grain directions were parameters (0, 90 degrees). The reduction of initial stiffness and proportional limit load showed good agreement between theoretical prediction and experimental results.
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Evaluation of Lamination Effect on In-Plane Bending Strength of Cross Laminated Timber

https://research.thinkwood.com/en/permalink/catalogue1542
Year of Publication
2016
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Author
Aoyama, Tsuyoshi
Kitamori, Akihisa
Mori, Takuro
Isoda, Hiroshi
Araki, Yasuhiro
Nakagawa, Takafumi
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Topic
Mechanical Properties
Keywords
Bending Tests
Bending Strength
Computational Model
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 1105-1112
Summary
Various kind of in-plane bending tests of cross laminated timber (CLT) with different shapes have been previously carried out. The results indicate that the bending strength of CLT loaded in plane reduces as the number of layer increases. To evaluate this lamination effect on in-plane bending strength of CLT, a computational model based on Monte Carlo method was developed. The estimated bending strength showed the same tendency.
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Full Scale Shake Table Tests on Five Story and Three Story CLT Building Structures

https://research.thinkwood.com/en/permalink/catalogue1670
Year of Publication
2016
Topic
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Kawai, Naohito
Miyake, Tatsuya
Yasumura, Motoi
Isoda, Hiroshi
Koshihara, Mikio
Nakajima, Shiro
Araki, Yasuhiro
Nakagawa, Takafumi
Sato, Motoshi
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Seismic
Keywords
Full Scale
Shake Table Tests
Japan
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 3828-3835
Summary
The national research project to investigate proper structural design method for CLT (Cross Laminated Timber) buildings has been advanced by the subsidy of the Ministry of Land, Infrastructure, Transport and Tourism of Japan since 2011. This paper provides the outline of shake table tests executed as a part of the project in February 2015. Two specimens, one (Specimen A) is five story and another (Specimen B) is three story, were tested. As the result, for both specimens damage was rather slight by the strong input wave according to the Building Standard Law of Japan. Finally, Specimen A survived three dimensional input wave of 100% of JMA Kobe (strong ground motion recorded during Kobe Earthquake in 1995), and Specimen B survived 140% of JMA Kobe.
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Lateral Loading Tests on CLT Shear Walls by Assembly of Narrow Panels and by a Large Panel with an Opening

https://research.thinkwood.com/en/permalink/catalogue475
Year of Publication
2014
Topic
Mechanical Properties
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Author
Kawai, Naohito
Tsuchimoto, Takahiro
Tsuda, Chihiro
Murakam, Satoru
Miura, Sota
Isoda, Hiroshi
Miyake, Tatsuya
Year of Publication
2014
Country of Publication
Canada
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Shear Walls
Topic
Mechanical Properties
Keywords
Lateral Load
Opening
Load-Displacement Curves
Shear Performance
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 10-14, 2014, Quebec City, Canada
Summary
In this paper, the results of lateral loading tests on two types of CLT shear wall systems with an opening are summarized, one is the shear wall system with assembling narrow size CLT panels and another is that using one large size panel with an opening. 8 types, 13 specimens in all were tested. Load-displacement curves were obtained and characteristic values of shear performance were derived. As a result, the assembly system revealed higher ductility because of the ductility of connections between panels, while the rapture of large panel system was brittle though the shear capacity was higher than the assembly system.
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Research Outline of Seismic Standard Development for CLT Construction in Japan

https://research.thinkwood.com/en/permalink/catalogue1645
Year of Publication
2016
Topic
Design and Systems
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Araki, Yasuhiro
Nakagawa, Takafumi
Kawai, Naohito
Isoda, Hiroshi
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Seismic
Keywords
Japan
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 3420-3427
Summary
The national research project to investigate proper structural design method for CLT(Cross Laminated Timber) buildings has been advanced by the subside of the Ministry of Land, Infrastructure, Transport and Tourism of Japan since 2011. This paper provides the outline, research item and main result stream of the project. Full-scaled building tests and element tests for evaluating seismic performance are described in this paper mainly. Numerical studies have been also conducting as well.
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Seismic Design Cases of CLT Buildings in Japan after 2014

https://research.thinkwood.com/en/permalink/catalogue1672
Year of Publication
2016
Topic
Design and Systems
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Watanabe, Hiroshi
Miyake, Tatsuya
Matsumoto, Kazuyuki
Tsuchimoto, Takahiro
Isoda, Hiroshi
Kawai, Naohito
Yasumura, Motoi
Year of Publication
2016
Country of Publication
Austria
Format
Conference Paper
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Design and Systems
Seismic
Keywords
Japan
Time History Response Analysis
Language
English
Conference
World Conference on Timber Engineering
Research Status
Complete
Notes
August 22-25, 2016, Vienna, Austria p. 3853-3860
Summary
In this paper, the general process and results of the seismic design on four buildings with Japanese CLT construction after 2014 based on the time history response analysis as the only legal structural design method in Japan at the present moment, are shown. As a result, it is recognized that the buildings has enough seismic performance for the regulation of seismic design in Japan.
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12 records – page 1 of 2.