Earthquakes and Structures

  • 제1권3호
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  • Pages.231-252
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  • 2010
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Pounding-involved response of isolated and non-isolated buildings under earthquake excitation

  • Mahmoud, Sayed (Faculty of Engineering at Mataria, Helwan University) ;
  • Jankowski, Robert (Faculty of Civil and Environmental Engineering, Gdansk University of Technology)
  • 투고 : 2009.10.21
  • 심사 : 2010.06.08
  • 발행 : 2010.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

Previous research on pounding between seismically isolated buildings during earthquakes has been focused on impacts at the bases of structures and the effect of simultaneous interactions at the bases and at the superstructures has not been studied in details. In this paper, the seismic responses of adjacent buildings supported on different or similar base systems considering impacts between bases and superstructures are numerically investigated. The study is carried out in three parts for the two types of adjacent buildings: (i) both structures have fixed bases; (ii) one structure has fixed base and the other is seismically isolated and (iii) both structures have base isolation systems. The results of the study indicate that the pounding-involved responses of the buildings depend mainly on the type of structural base systems and on the structural parameters of both buildings. For the base-isolated building, the variation of the peak accelerations and displacements of the storeys have been found to be relatively low. On the other hand, significant differences have been observed for the fixed base building. The results of the parametric study conducted for different values of the gap size between colliding structures show the reduction in the peak base displacements as the gap distance decreases.

키워드

참고문헌

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