Performance Evaluation of Controlled Steel Frames under Multilevel Seismic Loads
Publication: Journal of Structural Engineering
Volume 128, Issue 11
Abstract
The goal of this research is to evaluate different structural control methods in enhancing the overall structural performance under seismic excitations. This study focuses on steel moment resisting frames and several types of possible controllers: (1) friction pendulum base isolation system; (2) linear viscous dampers; and (3) active tendon brace system. Two structures are selected from the SAC Phase II project, the three story system, and the nine story system. Simulations of these systems, both controlled and uncontrolled, are prepared using the three suites of earthquake records, also from the SAC Phase II project, that represent three different return periods. Several controllers are developed for each structure, and their performance is judged based on both roof and interstory drift and normalized dissipated hysteretic energy. Results indicate that structural control systems are effective solutions that can improve structural performance. All three control strategies investigated can significantly reduce the seismic demands on a structure, thereby reducing the expected damage to the structure.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 128 • Issue 11 • November 2002
Pages: 1368 - 1378
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Mar 28, 2001
Accepted: Mar 12, 2002
Published online: Oct 15, 2002
Published in print: Nov 2002
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