Structural Engineering and Mechanics

  • 제46권4호
  • /
  • Pages.487-504
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  • 2013
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Experimental investigation of a new steel friction device with link element for seismic strengthening of structures

  • Papadopoulos, Panikos K. (Aristotle University of Thessaloniki, Department of Civil Engineering, University Campus) ;
  • Salonikios, Thomas N. (Earthquake Planning and Protection Organization, Research Division) ;
  • Dimitrakis, Stergios A. (Aristotle University of Thessaloniki, Department of Civil Engineering, University Campus) ;
  • Papadopoulos, Alkis P. (Aristotle University of Thessaloniki, Department of Civil Engineering, University Campus)
  • 투고 : 2012.08.03
  • 심사 : 2013.04.25
  • 발행 : 2013.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

In the present work a new friction device, with a set of single or double rotational friction flanges and a link element, is described and tested. The mechanism may be applied for the strengthening of existing r/c or steel buildings as well as in new constructed buildings. The device has selectable variable behavior in different levels of displacement and an interlock mechanism that is provided by the link element. The link element may be designed to lock at preselected level of displacement, offering in this way an extra safety reserve against strong earthquakes. A summary of the existing literature about other similar mechanisms is initially presented in this paper. The proposed mechanism is presented and described in details. Laboratory experiments are presented in detail and the resulted response that proves the efficiency of the mechanism at selectable levels of strength capacity is discussed. Drawings of the mechanism attached to a r/c frame with connection details are also included. Finally a dynamic analysis of two r/c frames, with and without the proposed mechanism attached, is performed and the resulted response is given. The main conclusion is that the proposed mechanism is a cheap and efficient devise for the improvement of the performance of new or existing framed buildings to seismic loads.

키워드

참고문헌

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피인용 문헌

  1. Experimental investigation on hysteretic behavior of rotational friction dampers with new friction materials vol.24, pp.2, 2013, https://doi.org/10.12989/scs.2017.24.2.239