Damped Timber Shear Wall: Shake-Table Tests and Analytical Models
Publication: Journal of Structural Engineering
Volume 147, Issue 6
Abstract
Light-timber frames, using plywood (PW), exhibit a pinched hysteresis response, and their energy absorption capacity is limited. The energy-dissipation capacity can be enhanced using energy-dissipation mechanisms. In this paper, two wood-friction-based connectors, with wood-plywood-wood (WPW) and wood-steel-wood (WSW), are utilized. Reverse-cyclic static load tests have shown that the WPW and WSW wall systems have nondegrading and stable hysteretic curves. In this paper, through shake-table tests, performance of WPW, WSW, PW, and WSW-PW coupled wall systems are investigated. As expected, the shake-table results indeed showed nondegrading hysteretic curve responses of WPW and WSW wall systems. Furthermore, a phenomenological model, where nonlinear behavior of the shear wall is reduced to a single spring element, is proposed for the wall systems. The nondegrading wall system (WPW, WSW) is modeled using the Bouc-Wen hysteretic model and the PW is modeled using the Pinching4 hysteretic model. Overall, there is good agreement between the test and analytical models. Results of the experimental test indeed show the utility of the new wall systems.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request: OpenSees model.
Acknowledgments
The first author acknowledges the financial support through the Natural Sciences an Engineering Research Council of Canada (RGPIN-2019-05584) under the Discovery Grant programs for the analytical work. The second author acknowledges the Science and Technology Research Promotion Program for Agriculture, Forestry, Fisheries, and Food Industry (27015A).
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Published In
Journal of Structural Engineering
Volume 147 • Issue 6 • June 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Aug 7, 2020
Accepted: Jan 27, 2021
Published online: Mar 25, 2021
Published in print: Jun 1, 2021
Discussion open until: Aug 25, 2021
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