Influence of Ground-Motion Characteristic Period on Reductions in Peak Dynamic Shears Owing to Base-Slab Averaging
Publication: Journal of Structural Engineering
Volume 143, Issue 9
Abstract
The relatively high story shears observed in inelastic dynamic analysis of shear wall buildings are attributed to higher mode effects. At the same time, soil-structure interaction can alter the frequency content of incident ground motions. This study examines the effect of base-slab averaging on peak story shears for an eight-story reinforced concrete shear wall building. Base slab averaging was found to reduce peak story shears. The reduction in peak story shears was found to be a function of the characteristic period of the ground motion; the largest percentage reductions are found for ground motions having the smallest characteristic periods.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 143 • Issue 9 • September 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Oct 29, 2015
Accepted: Feb 21, 2017
Published online: Jun 5, 2017
Published in print: Sep 1, 2017
Discussion open until: Nov 5, 2017
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