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Full-Scale Tests and Numerical Analysis of Low-Rise CLT Structures under Lateral Loading

Yasumura, Motoi / Kobayashi, Kenji / Okabe, Minoru / Miyake, Tatsuya / Matsumoto, Kazuyuki

This study examines the mechanical performance of large and small cross-laminated timber (CLT) wall panels with different applications. Two CLT structures were subjected to reversed cyclic lateral loads. One structure consisted of 90-mm-thick, large CLT wall panels ( $6 \times 2.7 m$ ), and the other consisted of 90-mm-thick, small CLT wall panels ( $1 \times 2.7 m$ ). A weight was installed on the roof of two-story structures to simulate the weight of three-story structures, designed by elastic calculations with a base shear coefficient of 1.0. The number of screws for each joint was determined by a linear finite-element method (FEM) analysis. The experimental results showed that the ultimate capacity of these structures is 60–80% higher than the design load, indicating high structural performance. A three-dimensional, nonlinear analysis was conducted via the FEM, which accurately predicted the mechanical performance of the CLT structures. This design procedure, based on linear analysis, resulted in a conservative design, and simulation using the nonlinear FEM provided an effective tool for design optimization.

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Full-Scale Tests and Numerical Analysis of Low-Rise CLT Structures under Lateral Loading

Yasumura, Motoi / Kobayashi, Kenji / Okabe, Minoru / Miyake, Tatsuya / Matsumoto, Kazuyuki

This study examines the mechanical performance of large and small cross-laminated timber (CLT) wall panels with different applications. Two CLT structures were subjected to reversed cyclic lateral loads. One structure consisted of 90-mm-thick, large CLT wall panels ( $6 \times 2.7 m$ ), and the other consisted of 90-mm-thick, small CLT wall panels ( $1 \times 2.7 m$ ). A weight was installed on the roof of two-story structures to simulate the weight of three-story structures, designed by elastic calculations with a base shear coefficient of 1.0. The number of screws for each joint was determined by a linear finite-element method (FEM) analysis. The experimental results showed that the ultimate capacity of these structures is 60–80% higher than the design load, indicating high structural performance. A three-dimensional, nonlinear analysis was conducted via the FEM, which accurately predicted the mechanical performance of the CLT structures. This design procedure, based on linear analysis, resulted in a conservative design, and simulation using the nonlinear FEM provided an effective tool for design optimization.

Full-Scale Tests and Numerical Analysis of Low-Rise CLT Structures under Lateral Loading

Yasumura, Motoi / Kobayashi, Kenji / Okabe, Minoru / Miyake, Tatsuya / Matsumoto, Kazuyuki

This study examines the mechanical performance of large and small cross-laminated timber (CLT) wall panels with different applications. Two CLT structures were subjected to reversed cyclic lateral loads. One structure consisted of 90-mm-thick, large CLT wall panels ( $6 \times 2.7 m$ ), and the other consisted of 90-mm-thick, small CLT wall panels ( $1 \times 2.7 m$ ). A weight was installed on the roof of two-story structures to simulate the weight of three-story structures, designed by elastic calculations with a base shear coefficient of 1.0. The number of screws for each joint was determined by a linear finite-element method (FEM) analysis. The experimental results showed that the ultimate capacity of these structures is 60–80% higher than the design load, indicating high structural performance. A three-dimensional, nonlinear analysis was conducted via the FEM, which accurately predicted the mechanical performance of the CLT structures. This design procedure, based on linear analysis, resulted in a conservative design, and simulation using the nonlinear FEM provided an effective tool for design optimization.

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Title:

Full-Scale Tests and Numerical Analysis of Low-Rise CLT Structures under Lateral Loading

Contributors:

Yasumura, Motoi (author) / Kobayashi, Kenji (author) / Okabe, Minoru (author) / Miyake, Tatsuya (author) / Matsumoto, Kazuyuki (author)

Published in:

Journal of Structural Engineering ; 142

Publication date:

2015-07-02

ISSN:

0733-9445 , 1943-541X

DOI:

https://doi.org/10.1061/(ASCE)ST.1943-541X.0001348

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

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