Seismic Response of Asymmetric Systems: Energy-Based Approach
Publication: Journal of Structural Engineering
Volume 123, Issue 11
Abstract
An energy-based approach has been used to investigate the seismic behavior of code-designed asymmetric-plan systems. The systems considered in this investigation had large eccentricities in both directions, were designed for bidirectional earthquake loading, and their responses were computed with both components of ground motion acting simultaneously. The presented results demonstrate that the total input energy is about the same whether the system plan is symmetric or asymmetric. Furthermore, flexible-side elements in asymmetric-plan systems may be more vulnerable to earthquakes than the same elements in symmetric-plan systems if they are not designed to accommodate the higher hysteretic-energy demands. This observation correlates well with the damage observed in street corner buildings during several earthquakes. Stiff-side elements, on the other hand, are expected to suffer no more damage in asymmetric-plan systems than in symmetric-plan systems.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 123 • Issue 11 • November 1997
Pages: 1444 - 1453
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Nov 1, 1997
Published in print: Nov 1997
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