Seismic response control of a building complex utilizing passive friction damper: Experimental investigation

Chi Lun Ng, You Lin Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

24 Citations (Scopus)

Abstract

Multi-storey main buildings constructed with a low-rise podium structure possess some architectural merits but the setback features of such a building complex may lead to seismic response enlargement of the main buildings. This paper explores the possibility of using passive friction dampers to connect the podium structure to the main buildings to prevent their seismic response enlargement without violating the architectural features. A series of shaking table tests were carried out on one 3-storey and one 12-storey building models in fully-separated, rigidly connected, and friction damper-linked configurations. Four sets of seismic ground motions were selected as inputs to the shaking table. The control competence of two buildings linked with friction damper was evaluated by comparison of their responses with those from fully-separated and rigidly connected cases. Experimental results showed that unfavourable seismic response amplification did occur in the building complex in the rigidly connected case. By contrast, friction damper showed effectiveness in reducing absolute acceleration and interstorey drift responses of both buildings if friction force level was appropriately applied.
Original languageEnglish
Pages (from-to)657-677
Number of pages21
JournalEarthquake Engineering and Structural Dynamics
Volume35
Issue number6
DOIs
Publication statusPublished - 1 Jan 2006

Keywords

  • Coupling control
  • Multi-storey building
  • Passive friction damper
  • Podium structure
  • Seismic mitigation
  • Shaking table test

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Earth and Planetary Sciences (miscellaneous)

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