Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/81891
Título: | In-plane cyclic behaviour of RC frames strengthened with composite sandwich panels |
Autor(es): | Sousa, Christoph Fernandes Barros, Joaquim A. O. Correia, João R. |
Palavras-chave: | Rehabilitation RC frames Building facades Sandwich panel Precast concrete Recycled steel fibres Cyclic tests |
Data: | 2022 |
Editora: | Elsevier |
Revista: | Engineering Structures |
Resumo(s): | This paper presents an experimental study about the development of a sustainable and multifunctional composite sandwich panel for the rehabilitation of reinforced concrete (RC) buildings from the 1960s to the mid-1980s. For this purpose, the cyclic behaviour of representative RC frames was assessed by performing in-plane quasi-static cyclic tests on three different specimens: (i) a bare RC frame (individual behaviour of the frame); (ii) an RC frame with masonry infill wall (representative of target buildings); and (iii) an RC frame strengthened with an innovative sandwich panel formed by outer wythes in recycled steel fibre reinforced micro-concrete and polystyrene core layer. The results show that, in comparison with the traditional masonry infill wall solution, the proposed rehabilitation solution significantly improved the cyclic performance of the RC frame, reaching higher levels of load carrying capacity (395% vs. 349% increase) and energy dissipation (700% vs. 524% increase). Moreover, the sandwich panel has maintained its structural integrity with low level of damage in its internal load-bearing layer for high values of lateral drift (up to 2.1%). |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/81891 |
DOI: | 10.1016/j.engstruct.2021.113529 |
ISSN: | 0141-0296 |
Versão da editora: | https://www.sciencedirect.com/science/article/pii/S0141029621016254?via%3Dihub |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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ENGSTRUCT_PublishedPaper_SousaEtAl.pdf | 10,67 MB | Adobe PDF | Ver/Abrir |