Structural Engineering and Mechanics

  • 제22권1호
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  • Pages.85-105
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  • 2006
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Seismic response control of a building complex utilizing passive friction damper: Analytical study

  • Ng, C.L. (Department of Civil and Structural Engineering, The Hong Kong Polytechnic University) ;
  • Xu, Y.L. (Department of Civil and Structural Engineering, The Hong Kong Polytechnic University)
  • 투고 : 2005.04.20
  • 심사 : 2005.09.09
  • 발행 : 2006.01.10
⟨ 이전 논문 다음 논문 ⟩

초록

Control of structural response due to seismic excitation in a manner of coupling adjacent buildings has been actively developed, and most attention focused on those buildings of similar height. However, with the rapid development of some modern cities, multi-story buildings constructed with an auxiliary low-rise podium structure to provide extra functions to the complex become a growing construction scheme. Being inspired by the positively examined coupling control approach for buildings with similar height, this paper aims to provide a comprehensive analytical study on control effectiveness of using friction dampers to link the two buildings with significant height difference to supplement the recent experimental investigation carried out by the writers. The analytical model of a coupled building system is first developed with passive friction dampers being modeled as Coulomb friction. To highlight potential advantage of coupling the main building and podium structure with control devices that provide a lower degree of coupling, the inherent demerit of rigid-coupled configuration is then evaluated. Extensive parametric studies are finally performed. The concerned parameters influencing the design of optimal friction force and control efficiency include variety of earthquake excitation and differences in floor mass, story number as well as number of dampers installed between the two buildings. In general, the feasibility of interaction control approach applied to the complex structure for vibration reduction due to seismic excitation is supported by positive results.

키워드

참고문헌

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피인용 문헌

  1. Numerical Investigation of a Variable Damping Semiactive Device for the Mitigation of the Seismic Response of Adjacent Structures vol.23, pp.4, 2008, https://doi.org/10.1111/j.1467-8667.2007.00537.x
  2. Experimental investigation on hysteretic behavior of rotational friction dampers with new friction materials vol.24, pp.2, 2006, https://doi.org/10.12989/scs.2017.24.2.239
  3. Towards optimal slip force and stiffness distribution in designing friction dampers vol.79, pp.3, 2021, https://doi.org/10.12989/sem.2021.79.3.289