Experimental Behavior of L-Shaped and T-Shaped Cross-Laminated Timber to Evaluate Shear Walls with Openings
Publication: Journal of Structural Engineering
Volume 149, Issue 5
Abstract
There is increasing interest in using cross-laminated timber (CLT) in buildings because of its high strength and stiffness. In Japan, structural design guidelines for CLT buildings were established in 2016 and construction of mid-rise buildings is increasing. Wide-panel walls can exceed widths of 10 m and integrate cut-outs for window and door openings. However, under lateral loads, corner cracks at the openings have been the most prevalent failure mechanism. To investigate the initiation and propagation of corner cracks, a series of bendings are undertaken on L- and T-shape specimens extracted from the CLT panels. In addition, three-point bending and shear tests are also carried out on beam sections extracted from the CLT panels. Three types of brittle failure were observed: bending failure of the beam or column, and rolling shear failure.
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Data Availability Statement
Some or all data, models, or code generated or used during the study are available from the first author by request. Experimental data is available from the first author by request.
Acknowledgments
This study was based on the building standards development promotion project promoted by the ministry of land, infrastructure, transport and tourism “S7: Study on Design Method of Wooden Structures Using CLT (2013)” and the housing market development promotion project “Sophistication of Wooden Building Standards Using CLT (2014).” We would also like to thank all people and institutes involved, including Mami Wada who was a former student of RISH and the Hideyuki Nasu’s Laboratory of Nippon Institute of Technology, which cooperated in the experiment.
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Published In
Journal of Structural Engineering
Volume 149 • Issue 5 • May 2023
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This work is made available under the terms of the Creative Commons Attribution 4.0 International license, https://creativecommons.org/licenses/by/4.0/.
History
Received: Mar 5, 2022
Accepted: Oct 28, 2022
Published online: Feb 26, 2023
Published in print: May 1, 2023
Discussion open until: Jul 26, 2023
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