A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A new control algorithm to protect nonlinear base‐isolated structures against earthquakes
Currently, nonlinear base isolation systems are widely used in the construction of earthquake resistant structures. However, they are found to be vulnerable in near‐fault regions as a result of long‐period pulses that may exist in near‐source ground motions. Various control strategies including passive, active and semi‐active control systems have been studied in order to handle this issue. In this study, a semi‐active control algorithm based on the different performance levels anticipated from an isolated building during different levels of ground shaking was developed. The proposed performance‐based algorithm is based on a modified version of the well‐known semi‐active skyhook control algorithm. A series of analyses were performed on the base‐isolated benchmark building, suggested by the American Society of Civil Engineers committee, subject to seven pairs of scaled ground‐motion records. The results proved that the new control algorithm is successful in improving structural and nonstructural performance of isolated buildings under near‐fault earthquakes. Copyright © 2012 John Wiley & Sons, Ltd.
A new control algorithm to protect nonlinear base‐isolated structures against earthquakes
Currently, nonlinear base isolation systems are widely used in the construction of earthquake resistant structures. However, they are found to be vulnerable in near‐fault regions as a result of long‐period pulses that may exist in near‐source ground motions. Various control strategies including passive, active and semi‐active control systems have been studied in order to handle this issue. In this study, a semi‐active control algorithm based on the different performance levels anticipated from an isolated building during different levels of ground shaking was developed. The proposed performance‐based algorithm is based on a modified version of the well‐known semi‐active skyhook control algorithm. A series of analyses were performed on the base‐isolated benchmark building, suggested by the American Society of Civil Engineers committee, subject to seven pairs of scaled ground‐motion records. The results proved that the new control algorithm is successful in improving structural and nonstructural performance of isolated buildings under near‐fault earthquakes. Copyright © 2012 John Wiley & Sons, Ltd.
A new control algorithm to protect nonlinear base‐isolated structures against earthquakes
Khoshnoudian, Faramarz (author) / Mehrparvar, Behnam (author)
The Structural Design of Tall and Special Buildings ; 22 ; 1376-1389
2013-12-25
14 pages
Article (Journal)
Electronic Resource
English
Active Control of Base-Isolated Structures under Strong Earthquakes
| British Library Conference Proceedings | 1994
Near-source earthquakes, base-isolated structures and semiactive dampers
| British Library Conference Proceedings | 1996
Nonlinear Control of Structures in Earthquakes.
| Online Contents | 1997