Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
System identification of super high‐rise buildings using limited vibration data during the 2011 Tohoku (Japan) earthquake
A new method of system identification of high‐rise buildings is proposed in which high‐rise buildings are represented by a shear‐bending model. The method is devised to find the story shear and bending stiffnesses of a specific story from the horizontal floor accelerations. The special characteristic of the proposed method is to use a previously derived set of closed‐form expressions for the story shear and bending stiffnesses in terms of the limited floor accelerations and to utilize a reduced shear‐bending model with the same number of elements as the vibration recording points. In the proposed method, a difficulty of prediction of an unstable specific function in a low‐frequency range can be overcome by introducing an ARX model. It is demonstrated that the shear‐bending model can simulate the vibration records with a reasonable accuracy. It is shown further that the vibration records at two super high‐rise buildings during the 2011 Tohoku (Japan) earthquake can be simulated with the proposed method including a technique of adding degrees of freedom between the vibration recording points. Copyright © 2012 John Wiley & Sons, Ltd.
System identification of super high‐rise buildings using limited vibration data during the 2011 Tohoku (Japan) earthquake
A new method of system identification of high‐rise buildings is proposed in which high‐rise buildings are represented by a shear‐bending model. The method is devised to find the story shear and bending stiffnesses of a specific story from the horizontal floor accelerations. The special characteristic of the proposed method is to use a previously derived set of closed‐form expressions for the story shear and bending stiffnesses in terms of the limited floor accelerations and to utilize a reduced shear‐bending model with the same number of elements as the vibration recording points. In the proposed method, a difficulty of prediction of an unstable specific function in a low‐frequency range can be overcome by introducing an ARX model. It is demonstrated that the shear‐bending model can simulate the vibration records with a reasonable accuracy. It is shown further that the vibration records at two super high‐rise buildings during the 2011 Tohoku (Japan) earthquake can be simulated with the proposed method including a technique of adding degrees of freedom between the vibration recording points. Copyright © 2012 John Wiley & Sons, Ltd.
System identification of super high‐rise buildings using limited vibration data during the 2011 Tohoku (Japan) earthquake
Minami, Y. (Autor:in) / Yoshitomi, S. (Autor:in) / Takewaki, I. (Autor:in)
Structural Control and Health Monitoring ; 20 ; 1317-1338
01.11.2013
22 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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