Experimental Seismic Response of a Resilient 2-Story Mass-Timber Building with Post-Tensioned Rocking Walls
Publication: Journal of Structural Engineering
Volume 145, Issue 11
Abstract
This paper describes the design, construction, and experimental results of a series of full-scale 2-story mass-timber building shake table tests conducted at the Natural Hazards Engineering Research Infrastructure (NHERI) at the University of California, San Diego large outdoor shake table facility. The building specimen utilized a lateral force-resisting system consisting of two post-tensioned rocking walls made of cross-laminated timber (CLT) panels. The structural system was designed to be resilient with the ability to undergo repetitive testing under strong ground motions without significant damage. The test building had an open floor plan suitable for mixed commercial and residential applications. The CLT floor and roof diaphragm had large cantilevered portions that represented realistic aspect ratios. The building was subjected to a series of 14 earthquake ground motions and pushed to a maximum roof drift of 5%. After completion of the dynamic tests, which included several ground motions at the maximum considered earthquake hazard level, the building was able to recenter with no unintended structural damage, highlighting the resilience of the mass-timber rocking-wall structural system.
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Acknowledgments
This research project is supported by the National Science Foundation through a number of collaborative awards, including CMMI 1636164, CMMI 1634204, CMMI 1635363, CMMI 1635227, CMMI 1635156, and CMMI 1634628. The use of the NHERI experimental facility is supported by the National Science Foundation’s Natural Hazards Engineering Research Infrastructure (NHERI) Program. The authors would like to thank the NHERI at UCSD site management and staff, who helped greatly in the construction and testing program. The authors would also like to acknowledge support for the 2-story shake table testing program from industry partners, including TallWood Design Institute, Katerra, Simpson Strong-Tie, Forest Products Laboratory, Softwood Lumber Board, DR Johnson Lumber, and the City of Springfield, Oregon. The opinions presented herein are solely those of the authors. The authors also would like to acknowledge individual industry collaborators and students who worked on this project, including Jace Furley, Leonardo Rodrigues, Brian Demeza, Gabriele Tamagnone, Daniel Griesenauer, Ethan Judy, Steven Kordziel, Aleesha Busch, Ali Hansan, Joycelyn Ng, Monica Y. Liu, and Ata Mohseni. The authors would also like to thank the NHERI TallWood project Co-PIs (Keri Ryan at University of Nevada Reno, James Ricles and Richard Sause at Lehigh University).
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 145 • Issue 11 • November 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: May 10, 2018
Accepted: Feb 4, 2019
Published online: Aug 23, 2019
Published in print: Nov 1, 2019
Discussion open until: Jan 23, 2020
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