Gillott, C. orcid.org/0000-0001-5706-7909, Davison, B. and Densley Tingley, D. (2025) Reserve capacity and vertical extension potential in steel framed buildings. Proceedings of the Institution of Civil Engineers: Structures and Buildings, 178 (3). pp. 235-247. ISSN 0965-0911
Abstract
Reusing existing buildings is key in transitioning to a circular economy and meeting associated decarbonisation targets. Many adaptive reuse strategies, including vertical extensions, result in increased loads that are required to be resisted by reserve structural capacity and/or strengthening. Previous work identifies structural underutilisation within existing buildings and suggests numerous sources of this. However, understanding of associated contributions to reserve capacity and how this influences a building’s ability to be extended is limited. To address this, 11 scenarios, each modelling a different source of underutilisation, have been developed and applied in the design and reappraisal of 11,252 hypothetical steel framed office buildings. An average reserve capacity of 10% is found in optimal Eurocode designs, rising to around 20% for British Standards and over 30% in the conservative or defensive application of Eurocodes. Office to residential conversions are shown to unlock an average reserve capacity of more than 20%. Across the 11 scenarios, between 9% and 89% of considered cases are shown to be extendable without the need for strengthening. This demonstrates potentially significant extension potential within steel framed buildings, but that this varies with frame configuration, design/appraisal approach, and the extension’s use and structural material.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024 The Author(s). Except as otherwise noted, this author-accepted version of a journal article published in Proceedings of the Institution of Civil Engineers: Structures and Buildings is made available via the University of Sheffield Research Publications and Copyright Policy under the terms of the Creative Commons Attribution 4.0 International License (CC-BY 4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ |
Keywords: | circular economy; buildings; structures & design; steel structures; columns; sustainability; British standards & codes of practice; loads & loading; built environment; codes of practice & standards; structural analysis; design, steel; design methods & aids; recycling & reuse of materials; structural design; service life; structural frameworks; UN SDG 11: sustainable cities and communities, UN SDG 12: responsible consumption and production |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 06 Aug 2024 11:10 |
Last Modified: | 25 Feb 2025 15:42 |
Status: | Published |
Publisher: | ICE Publishing |
Refereed: | Yes |
Identification Number: | 10.1680/jstbu.24.00010 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:215516 |
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