Experimental and Numerical Investigation on Seismic Performance of One-Way Straight Mortise–Tenon Joints Based on a Novel Method to Simulate Damage of Deteriorated Ancient Chinese Timber Buildings
Publication: Journal of Performance of Constructed Facilities
Volume 34, Issue 2
Abstract
Being exposed to weather directly or indirectly for more than 100 years, ancient timber buildings have experienced different levels of mechanical degradation. Especially the mortise-tenon joints, which play a crucial role in resisting various loads for these buildings, have suffered from severe deformations and damages, resulting in a significant reduction in the structural safety for the ancient timber buildings. In this study, a method is proposed to quantitatively describe the destruction of one-way straight mortise–tenon (OWSMT) joints, and the impact of joint damage on the seismic performance of the ancient timber structure was studied. The deterioration of the mortise-tenon joints was simulated by changing the size of the mortise, and controlling the width of the mortise compression zone and the gap between the tenon and the mortise. Low-cyclic loading tests were carried out on 23 groups of OWSMT joint specimens. The structural performance in terms of skeleton curves, stiffness degradation, and equivalent viscous damping of the OWSMT joints were obtained. Through the comparative analysis of the experimental and numerical simulation results, this paper further analyzes the seismic performance of the damaged timber joints.
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Data Availability Statement
Some or all data, models, or code generated or used during the study are available from the corresponding author by request, including the simulated models and the experimental data of the OWSMT joint.
Acknowledgments
This study was supported by the Science and Technology Project of Sichuan Province under Grant No. 2019YFG0048; the Hunan Innovative Provincial Construction Project under Grant No. 2019RS3009; the National Science Foundation of China under Grant Nos. 51778630, 51578478, 51878589, 51708485, and 51708484; the Natural Science Foundation of Jiangsu Province, PR China, under Grant No. BK20161337; the China Postdoctoral Science Foundation under Grant Nos. 2015M581702, and 2016M592695. The first author thanks the 2018 Jiangsu Provincial Government Scholarship Program (No. 228) for the support of his visiting at University of California, Los Angeles. Moreover, special thanks are due to the respected editor and two anonymous reviewers for their suggested improvements and comments. The authors are particularly proud of the encouragement from the respected editors and two anonymous reviewers.
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Published In
Journal of Performance of Constructed Facilities
Volume 34 • Issue 2 • April 2020
Copyright
©2019 American Society of Civil Engineers.
History
Received: Nov 19, 2018
Accepted: Jul 1, 2019
Published online: Dec 23, 2019
Published in print: Apr 1, 2020
Discussion open until: May 23, 2020
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