FLO:RE – A new floor system made of reused reinforced concrete and steel elements
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Détails bibliographiques
| Auteur(s): |
Numa Bertola
(Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland)
Célia Küpfer (Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland) Maléna Bastien-Masse (Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland) Corentin Fivet (Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland) |
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| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Symposium: Construction’s Role for a World in Emergency, Manchester, United Kingdom, 10-14 April 2024 | ||||
| Publié dans: | IABSE Symposium Manchester 2024 | ||||
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| Page(s): | 1092-1099 | ||||
| Nombre total de pages (du PDF): | 8 | ||||
| DOI: | 10.2749/manchester.2024.1092 | ||||
| Abstrait: |
Carefully extracting reinforced concrete (RC) elements from soon-to-be demolished structures and reusing them as load-bearing components is an emerging circular low-carbon alternative to building new structures. As floor construction typically accounts for the most upfront carbon footprint of buildings, this paper presents the design, structural verifications and construction process of FLO:RE, a new floor system built with reused saw-cut RC slab elements and steel beams. To value all pre- existing properties, the new system reuses the RC elements in bending, taking advantage of the existing steel reinforcement. The life-cycle assessment (LCA) shows that the upfront carbon footprint of the reused system can be as low as 5 kgCO2,eq/m2, reducing by up to 94 % compared to conventional RC flat slabs. The construction and monitoring of a 30-m2 mock-up demonstrate the new-system construction ease and structural performance. This study proves the technical feasibility of reusing old RC slab elements in new floor systems. |
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