Adaptive Curved Surface Slider for Improved Seismic Structural Performance
Publication: Practice Periodical on Structural Design and Construction
Volume 26, Issue 3
Abstract
The design of conventional curved surface sliders (CSSs) uses appropriate selections of effective radius and friction coefficient. These two design parameters are commonly optimized for the design basis earthquake (DBE). As a consequence, efficient structural isolation for weak and frequent earthquakes is hardly possible on the one hand and the isolator relative motion due to the maximum considered earthquake (MCE) becomes unacceptable large on the other hand. This trade-off problem is solved by adaptive stiffness and damping behaviors. The concept of the adaptive CSS is described, and its seismic performance is computed by nonlinear time history analysis using a nonlinear and experimentally validated model. The results demonstrate that the adaptive CSS significantly enhances seismic structural performance.
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Data Availability Statement
Some or all data, models, or code generated or used during the study are proprietary or confidential in nature and may only be provided with restrictions. Because the models used for computations of the SIP-Adaptive with superstructure are described in detail here, they are available. The measurement data of the tested SIP-Adaptives 2 and 3 are presented in the paper as well, but the data are proprietary to Maurer SE.
Acknowledgments
The authors gratefully acknowledge the support of Maurer SE, Munich, Germany; Maurer Engineering GmbH, Munich, Germany; and Maurer Switzerland GmbH, Pfaffhausen, Switzerland.
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Published In
Practice Periodical on Structural Design and Construction
Volume 26 • Issue 3 • August 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Nov 3, 2020
Accepted: Mar 8, 2021
Published online: May 13, 2021
Published in print: Aug 1, 2021
Discussion open until: Oct 13, 2021
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