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Hysteretic Behaviour of Composite Reduced Web Section (RWS) Connections for Seismic Applications

Almutairi, F., Tsavdaridis, K. D. ORCID: 0000-0001-8349-3979, Rodriguez, A. , Asteris, P. & Lemonis, M. (2023). Hysteretic Behaviour of Composite Reduced Web Section (RWS) Connections for Seismic Applications. Journal of Earthquake Engineering, 28(2), pp. 349-384. doi: 10.1080/13632469.2023.2204172


Whilst there has been extensive research about reduced web section beams; RWS, their behaviour when excited by ground motion and they are overlaid by slabs is yet not well understood. This study fills this knowledge gap by assessing results of a high-definition finite element representation of non-seismically detailed RWS connections with slabs. The effect of the presence of composite action over the web opening is assessed, focusing on effects induced by size and location of the web openings. Simulations show that these connections can reach a 4% interstorey drift, thus allowing them to be part of special moment frames following AISC 341. Moreover, beam, column and joint tearing were avoided entirely, and at the most, brittle failure of bolts in the end plate was observed, a consequence of lack of capacity design.

Publication Type: Article
Additional Information: © 2023 The Author(s). Published with license by Taylor & Francis Group, LLC. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The terms on which this article has been published allow the posting of the Accepted Manuscript in a repository by the author(s) or with their consent.
Publisher Keywords: Steel seismic design; reduced web section connection; seismic retrofit of steel structures; capacity design
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TH Building construction
Departments: School of Science & Technology > Engineering
SWORD Depositor:
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[thumbnail of 230219 Manuscript_for symplectic.pdf] Text - Accepted Version
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