Hazard-consistent performance comparison of ASCE and Eurocode-compliant steel moment frames
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Published version
Author(s)
Zahra, Faridah
Málaga-Chuquitaype, Christian
Type
Journal Article
Abstract
Seismic design codes are fundamental to the provision of safe infrastructure in earthquake-prone regions. At the moment of writing this paper, the European standard for seismic design (Eurocode 8) is in its final voting phase after undergoing important changes. This paper evaluates the consequences of the changes introduced in the upcoming Eurocode 8 against its current version and its American counterpart using a fair and hazard-consistent comparative framework. To this end, 16 steel moment resisting frames of different geometries are designed in accordance with each code. The resulting 48 frames are subjected to a series of 596 strong ground-motions carefully selected to be consistent with their design hazard, and the outcomes of these extensive analyses are presented as structural demand hazard curves for peak drifts and residual deformations. Our results reveal that, when assessed from a hazard-consistent perspective, European designs remain over-conservative in comparison with the designs adhering to the American standards, which are also perceived to be clearer and simpler, despite the important changes introduced in the new version of Eurocode 8. Our results also stress in quantifiable terms the marked limitations of current prescriptive design codes to guarantee reasonably similar demands are experienced by structures designed to the same level of performance requirement.
Date Issued
2025-03-01
Date Acceptance
2024-12-09
Citation
Engineering Structures, 2025, 326
ISSN
0141-0296
Publisher
Elsevier BV
Journal / Book Title
Engineering Structures
Volume
326
Copyright Statement
© 2024 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
License URL
Identifier
https://doi.org/10.1016/j.engstruct.2024.119492
Publication Status
Published
Article Number
119492
Date Publish Online
2024-12-18