Abstract
Experimental research on seismic behavior of structural columns is one of the most important and active research areas in structural engineering. Various methods with innovative loading configurations have been developed by researchers over the past several decades, and the research has enhanced our knowledge about the performance of structural columns, resulting in the improvement of design practice. This paper provides a state-of-the-art review of the testing setups for simulating earthquake loading on structural columns, to reveal the trend of sophistication of testing methods. Special attention is given to the large tonnage axial loading methods and the shortcomings of existing methods. Based on past experiences and a review of existing methods, a new multiuse structural testing (MUST) system is developed and described in this paper. Because the MUST equipment has the unique ability to maintain the axial load vertical during lateral loading, and the force inputs to the structural model can be directly measured, it is more suitable for simulating structural responses under horizontal and vertical ground motions.
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Acknowledgments
The author wishes to acknowledge the support of the 985 grant from the Hunan University and the Thousand-Talent National Expert Professorships provided by the Hunan University and the Nanjing Tech University. During the drafting of the paper, Prof. J. C. Mander of Texas A&M University, Prof. H. Shiohara of Tokyo University, and Prof. S. Sheihk of the University of Toronto provided the author with helpful information. The author also wishes to thank Y. B. Sun, S. C. Zhou, and T. J. Cao for their help in preparing the sketches for this paper and their help during the initial tests of the HNU-MUST. Special thanks are due to the engineers at the Popwill Instrument (Bangwei) Corporation, Hangzhou, China, for their efforts in the manufacturing of the first prototype HNU-MUST equipment.
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Published In
Journal of Structural Engineering
Volume 145 • Issue 3 • March 2019
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©2018 American Society of Civil Engineers.
History
Received: Apr 21, 2018
Accepted: Aug 17, 2018
Published online: Dec 31, 2018
Published in print: Mar 1, 2019
Discussion open until: May 31, 2019
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