Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/76655
Título: | On the use of a mesoscale masonry pattern representation in discrete macro-element approach |
Autor(es): | Vadalà, Federica Cusmano, Valeria Funari, Marco Francesco Caliò, Ivo Lourenço, Paulo B. |
Palavras-chave: | Unreinforced masonry structures Mesoscale approach Non-periodic masonry pattern DMEM |
Data: | Jun-2022 |
Editora: | Elsevier |
Revista: | Journal of Building Engineering |
Citação: | F. Vadalà, V. Cusmano, M. F. Funari, I. Caliò & P. B. Lourenço. 2022. ‘On the use of a mesoscale masonry pattern representation in discrete macro-element approach’, Journal of Building Engineering, 50 (Jun.). |
Resumo(s): | This paper presents numerical investigations using the mesoscale approach coupled with the discrete macro-element approach for masonry structures, i.e., each macro-element represents a single unit stone. At first, parametric analyses are performed on a U-shape masonry prototype made with stone. Nonlinear static analyses are performed to investigate parameters that affect the results when a mesoscale masonry pattern representation is adopted. Results demonstrate how mesoscale representation is a powerful alternative to model unreinforced masonry structures within a discrete macro-element approach (particularly if compared with classic homogeneous FE methodologies). However, one of the main challenges in using the mesoscale approach for the structural assessment of masonry buildings, made with stones having different dimensions, is the unit by unit description. The complexity of the problem, and the amount of information needed, usually preclude the study of these structures deterministically. To this end, a digital tool to generate randomised masonry patterns using a few input parameters is proposed. A box structure is adopted as parent geometry, and ten masonry patterns with different degrees of randomness are investigated by performing nonlinear static and dynamic simulations. The outcomes focus on the influence of masonry patterns and demonstrate how irregularity of units can affect the structural response leading to a reduction in terms of strength and ductility if compared to regular distribution of masonry units. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/76655 |
DOI: | 10.1016/j.jobe.2022.104182 |
ISSN: | 2352-7102 |
Versão da editora: | https://doi.org/10.1016/j.jobe.2022.104182 |
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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Vadala et al. 2022.pdf | 2,93 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons