Full-Scale Tests and Numerical Analysis of Low-Rise CLT Structures under Lateral Loading
Publication: Journal of Structural Engineering
Volume 142, Issue 4
Abstract
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 (), and the other consisted of 90-mm-thick, small CLT wall panels (). 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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Acknowledgments
This work was supported by Forest Agency subsidies for the research project “Structural use of Cross Laminated Timber Made from Regional Wood” and JSPS KAKENHI Grant 26450227.
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© 2015 American Society of Civil Engineers.
History
Received: Jul 1, 2014
Accepted: Apr 28, 2015
Published online: Jul 2, 2015
Discussion open until: Dec 2, 2015
Published in print: Apr 1, 2016
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