Experiment investigation on semi-active seismic response control of tall building with podium structure

Weilian Qu, Jing Chen, You Lin Xu, C. L. Ng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

The experiments on semi-active seismic response control of tall building with podium structure were carried out in The Hong Kong Polytechnic University in Sep. 2002. The tall building was constructed as a slender 12-storey building model whereas the podium structure was built as a relatively stiff 3-storey building model. An MR damper together with a current controller manufactured by the Lord Corporation, USA, was used to link the 3-storey building to the 12-storey building. The dSPACE real-time simulator system is used in the experiment. The dynamic characteristics of the two buildings without any connection and with a rigid connection were first identified. The two building models without any connection and with a rigid connection were then tested under the scaled El Centro 1940 N-S ground motion. Finally, the two building models connected by the MR damper manipulated by a semi-active logic control algorithm were tested under the specified ground motion. The experimental results show that the MR damper with the semi-active logic control algorithm could significantly mitigate the seismic whipping effect and reduce the seismic responses of both the tall building and the podium structure.
Original languageChinese (Simplified)
Pages (from-to)64-72
Number of pages9
JournalJournal of Earthquake Engineering and Engineering Vibration
Volume24
Issue number3
Publication statusPublished - 1 Jun 2004

Keywords

  • Seismic response
  • Semi-active control
  • Tall building with podium structure

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geophysics

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