The Open Civil Engineering Journal




ISSN: 1874-1495 ― Volume 13, 2019
RESEARCH ARTICLE

On the European Norms of Design of Buckling Restrained Braced Frames



Ádám Zsarnóczay*, Tamás Balogh, László Gergely Vigh
Budapest University of Technology and Economics, Department of Structural Engineering, Műegyetem rkp. 3. Kmf. 85 H-1111, Budapest, Hungary

Abstract

The application of buckling restrained braced frames is hindered in Europe by the absence of a standardized design procedure in Eurocode 8, the European seismic design standard. The presented research aims to develop a robust design procedure for buckling restrained braced frames. A design procedure is proposed by the authors. Its performance has been evaluated for buckling restrained braced frames with two-bay X-brace type brace configurations using a state-of-the-art methodology based on the recommendations in the FEMA P695 document. A special numerical material model was developed within the scope of this research to represent the behavior of buckling restrained braces more appropriately in a numerical environment. A total of 24 archetype designs were prepared and their nonlinear dynamic response was calculated using real ground motion records in incremental dynamic analyses. Evaluation of archetype collapse probabilities confirms that the proposed design procedure can utilize the advantageous behavior of buckling restrained braces. Resulting reliability indices suggest a need for additional regulations in the Eurocodes that introduce reasonable structural reliability index limits for seismic design.

Keywords: Buckling Restrained Braced Frames, Design procedure, Eurocode 8, FEMA P695, Probabilistic Seismic Performance Assessment, Reliability.


Article Information


Identifiers and Pagination:

Year: 2017
Volume: 11
Issue: Suppl-1, M16
First Page: 513
Last Page: 530
Publisher Id: TOCIEJ-11-513
DOI: 10.2174/1874149501711010513

Article History:

Received Date: 17/11/2015
Revision Received Date: 02/05/2016
Acceptance Date: 23/06/2016
Electronic publication date: 30/06/2017
Collection year: 2017

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© 2017 zsarnoczay et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


* Address correspondence to this author at the Budapest University of Technology and Economics, Department of Structural Engineering, Műegyetem rkp. 3. Kmf. 85 H-1111, Budapest, Hungary; Tel: +36 1 463 1968; Fax: +36 1 463 1784; E-mail: zsarnoczay.adam@epito.bme.hu


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