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Effect of Opening on Seismic Performance of CLT Panel: Part. 1 Shear Test of H-Shape Specimen Panel

https://research.thinkwood.com/en/permalink/catalogue943
Year of Publication
2015
Topic
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Ishiro, Taro
Mohri, Takumi
Yuheiri, Mouri
Nakahata, Takumi
Suzuki, Kei
Harada, Hiroshi
Mori, Takuro
Tanaka, Kei
Kaiko, Naoto
Inoue, Masafumi
Organization
Architectural Institute of Japan
Year of Publication
2015
Country of Publication
Japan
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Seismic
Keywords
Shear Test
Opening
Language
Japanese
Research Status
Complete
Summary
A concrete-filled steel tube (CFT) column system has many advantages compared with ordinary sttel or reinforced concrete system. One of the main advantages is the interaction between steel tube and concrete: occurrence of the local buckling of steel tube is delayed by the restraint of concrete, and the strength of concrete is increased by the confining effect provided from the steel tube. Extensive research work has been done in Japan over the last 15 years, including "New Urban Housing Project" and "US-Japan Cooperative Earthquake Research Program", in addition to the work done by individual universities and industries, which has been presented at the annual meeting of Architectural Institute of Japan (AIJ). This paper introduces the merits, design provisions and recent construction trends of CFT column systems in Japan, and discusses the results of trial designs of CFT theme structures which have been carried out to look for the advantages in the performance and construction cost compared with other constructional system.
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Effect of Opening on Seismic Performance of CLT Panel: Part. 2 Bending Shear Test of L-Shape Specimen Panel

https://research.thinkwood.com/en/permalink/catalogue942
Year of Publication
2015
Topic
Seismic
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Author
Mohri, Takumi
Ishiro, Taro
Yuheiri, Mouri
Nakahata, Takumi
Suzuki, Kei
Harada, Hiroshi
Mori, Takuro
Tanaka, Kei
Kaiko, Naoto
Inoue, Masafumi
Organization
Architectural Institute of Japan
Year of Publication
2015
Country of Publication
Japan
Format
Journal Article
Material
CLT (Cross-Laminated Timber)
Application
Wood Building Systems
Topic
Seismic
Keywords
Bending Test
Shear
Opening
Language
Japanese
Research Status
Complete
Summary
The paper presents some experimental data and phenomenon on bracket anchor connections for Cross-Laminated-Timber. The goal of this research is to provide a better understanding of the seismic performance of bracket connections subjected to seismic actions and how to choose and design bracket connections for Cross-Laminated-Timber structures. Test configuration and experimental setups are illustrated in details; cyclic displacement schedules of the connections in two directions are presented considering that CLT wall has horizontal sliding in the plane and uplift at the end in quasi-state tests. Different failure modes and force transmission mechanisms of different connections under the loading protocol were analysed. And important quantities for seismic design such as strength, and stiffness, equivalent yield load, peak load and ductility of the connections are evaluated and compared among different kinds of connections; an excellent connector is revealed in ductility and load capacity by test data analysis. In addition, some suggestions to choose and design bracket anchor connections are given.
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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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