Computers and Concrete

  • 제13권5호
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  • Pages.603-619
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  • 2014
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Implication of rubber-steel bearing nonlinear models on soft storey structures

  • Saiful Islam, A.B.M. (Department of Civil Engineering, Faculty of Engineering, University of Malay) ;
  • Hussain, Raja Rizwan (Department of Civil Engineering, College of Engineering, King Saud University) ;
  • Jumaat, Mohammed Zamin (Department of Civil Engineering, Faculty of Engineering, University of Malay) ;
  • Mahfuz ud Darain, Kh. (Department of Civil Engineering, Faculty of Engineering, University of Malay)
  • 투고 : 2012.05.08
  • 심사 : 2013.12.27
  • 발행 : 2014.05.28
⟨ 이전 논문 다음 논문 ⟩

초록

Soft storey buildings are characterised by having a storey that has a large amount of open space. This soft storey creates a major weak point during an earthquake. As the soft stories are typically associated with retail spaces and parking garages, they are often on the lower levels of tall building structures. Thus, when these stories collapse, the entire building can also collapse, causing serious structural damage that may render the structure completely unusable. The use of special soft storey is predominant in the tall building structures constructed by several local developers, making the issue important for local building structures. In this study, the effect of the incorporation of an isolator on the seismic behaviour of tall building structures is examined. The structures are subjected to earthquakes typical of the local city, and the isolator is incorporated with the appropriate isolator time period and damping ratio. A FEM-based computational relationship is proposed to increase the storey height so as to incorporate the isolator with the same time period and damping ratio for both a lead rubber bearing (LRB) and high-damping rubber bearing (HDRB). The study demonstrates that the values of the FEM-based structural design parameters are greatly reduced when the isolator is used. It is more beneficial to incorporate a LRB than a HDRB.

키워드

참고문헌

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