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Performance assessment of steel structures with semi-rigid joints in seismic areas

Said Hicham Boukhalkhal (Built Environment Research Laboratory, Algiers, Algeria) (Department of Civil Engineering, University of Sciences and Technology Houari Boumediene, Algiers, Algeria)
Abd Nacer Touati Ihaddoudène (Built Environment Research Laboratory, Algiers, Algeria) (Department of Civil Engineering, University of Sciences and Technology Houari Boumediene, Algiers, Algeria)
Luis Filipe Da Costa Neves (Department of Civil Engineering, University of Coimbra, Coimbra, Portugal)
Pedro Colmar Gonçalves da Silva Vellasco (Department of Structural Engineering, State University of Rio de Janeiro, UERJ, Rio de Janeiro, Brazil)
Wafa Madi (Built Environment Research Laboratory, Algiers, Algeria) (Department of Civil Engineering, University of Sciences and Technology Houari Boumediene, Algiers, Algeria)

International Journal of Structural Integrity

ISSN: 1757-9864

Article publication date: 5 July 2019

Issue publication date: 22 January 2020

145

Abstract

Purpose

It is well known that the real behaviour of joints lies between the ideal pinned or rigid joint responses. Additionally the influence of this behaviour on the global structural response has been widely studied in the past centred on the plastic resistance or the critical load. On the other hand, there are relatively few studies focusing on the dynamical response of these structures. This paper aims to discuss these issues.

Design/methodology/approach

Two types of structures with rigid and semi-rigid joints were considered. Their inelastic response was evaluated using the N2 conventional pushover method, and were later compared to the results from a full non-linear dynamic analysis.

Findings

The results indicated that increasing joint flexibility makes the structure less rigid, lengthening its fundamental period and enhancing its horizontal displacement. Furthermore, a parametric study showed that joint flexibility might be of paramount importance to low to medium rise buildings response.

Originality/value

The evaluation of the influence of joint flexibility on the inelastic behaviour of steel structures located in seismic zone is of paramount importance, and is tackled in this paper.

Keywords

Citation

Boukhalkhal, S.H., Ihaddoudène, A.N.T., Da Costa Neves, L.F., Vellasco, P.C.G.d.S. and Madi, W. (2020), "Performance assessment of steel structures with semi-rigid joints in seismic areas", International Journal of Structural Integrity, Vol. 11 No. 1, pp. 13-28. https://doi.org/10.1108/IJSI-02-2019-0007

Publisher

:

Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited

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