Efficient Preconditioned Soil–Foundation–Structure Interaction Approach to Compute Tall-Building Time Periods
Publication: Practice Periodical on Structural Design and Construction
Volume 24, Issue 3
Abstract
The present paper suggests an efficient preconditioned two-iteration substructure approach—namely, preconditioned soil–structure interaction (PSSI)—to couple the analysis of a superstructure over fixed bases (which is traditionally carried out in design companies) with the analysis of foundation plates over an elastic half-space (EHS) to obtain more accurate equivalent supporting spring stiffnesses. Hence, an accurate building time period and, consequently, lateral loads could be computed. The effectiveness of the proposed approach is illustrated in several numerical examples in terms of number of iterations and scalability followed by comparison with previous work to demonstrate the superiority of the proposed approach.
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Acknowledgments
The first author thanks Dr. Taha H. A. Naga for the intriguing discussions and Anas Abourawash for help in the design of the GUI. Also, the authors thank ACE Consulting Engineers–Moharram Bakhoum for providing the licenses for CSI ETABS. Finally, the authors thank the anonymous reviewers for their valuable comments that made this work written in this form.
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Practice Periodical on Structural Design and Construction
Volume 24 • Issue 3 • August 2019
Copyright
© 2019 American Society of Civil Engineers.
History
Received: Sep 8, 2018
Accepted: Dec 14, 2018
Published online: Apr 3, 2019
Published in print: Aug 1, 2019
Discussion open until: Sep 3, 2019
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