Title: Seismic resistant structures with steel braces combined with resilient connections

Authors: Ashkan Hashemi; Hamed Bagheri; Pouyan Zarnani; Pierre Quenneville

Addresses: The University of Auckland, Private bag 92019, Auckland 1142, New Zealand ' The University of Auckland, Private bag 92019, Auckland 1142, New Zealand ' Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand ' The University of Auckland, Private bag 92019, Auckland 1142, New Zealand

Abstract: The resilient slip friction joint (RSFJ) has recently been introduced to the construction industry. This resilient damper provides a self-centring and low damage behaviour in addition to life safety. One application of this technology is the tension-only brace where the diagonal cross braces integrated with the RSFJs are used to resist lateral loads. This system is well suited for new and existing buildings (especially with long spans) when compared with the conventional tension/compression braces. This paper introduces the RSFJ tension-only system and highlights the enhanced seismic performance of this system compared to the conventional tension-only systems. A preliminary design procedure is proposed and applied to a four-storey case study structure. The results confirmed that this system could provide a high level of structural ductility while providing a low-damage behaviour.

Keywords: resilient; connections; tension-only; braces; seismic; steel; structures; low damage; self-centring.

DOI: 10.1504/IJSTRUCTE.2021.116523

International Journal of Structural Engineering, 2021 Vol.11 No.3, pp.294 - 309

Received: 20 Jan 2020
Accepted: 14 Aug 2020
Published online: 27 Jul 2021 *

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