Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/81767
Título: | Performance of rammed earth subjected to in-plane cyclic displacement |
Autor(es): | Romanazzi, Antonio Oliveira, Daniel V. Silva, Rui André Martins Barontini, Alberto Mendes, N. |
Palavras-chave: | Rammed earth In-plane cyclic loading Energy-based analysis Dynamic identification Stiffness degradation Seismic capacity |
Data: | 2022 |
Editora: | Springer |
Revista: | Materials and Structures |
Citação: | Romanazzi, A., Oliveira, D.V., Silva, R.A. et al. Performance of rammed earth subjected to in-plane cyclic displacement. Mater Struct 55, 54 (2022). https://doi.org/10.1617/s11527-022-01894-z |
Resumo(s): | Rammed earth structures are worldwide spread, both as architectural heritage and new constructions. Yet, rammed earth buildings present, in general, high seismic vulnerability. Despite the several studies conducted on the mechanical characterisation of rammed earth and on the numerical modelling of structural elements built with this material, further in-plane cyclic tests on rammed earth sub-assemblies are required to characterise their hysteretic behaviour. In this framework, an experimental program was conducted where cyclic in-plane tests were performed on a large-scale rammed earth wall. The geometry of the wall was defined to represent a sub-assembly commonly found in rammed earth dwellings from Alentejo (Southern Portugal). The wall was subjected to cyclic shear displacements with increasing amplitude, imposed in both positive and negative directions. To detect the dynamic properties of the wall and to assess the development of the structural damage, dynamic identification tests were conducted along the experimental programme. The results are analysed in terms of crack pattern, dynamic properties, displacement capacity, base shear performance and stiffness degradation. Further discussion is led on the dissipated energy, while a bi-linear and linear equivalent systems are proposed as simplified modelling approach. In conclusion, degradation of structural capacity was observed due to cyclic loads, while adequate energy dissipation and base shear coefficient were obtained. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/81767 |
DOI: | 10.1617/s11527-022-01894-z |
ISSN: | 1359-5997 |
Versão da editora: | https://link.springer.com/article/10.1617/s11527-022-01894-z |
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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Performance of rammed earth subjected to in-plane cyclic displacement.pdf | 2,16 MB | Adobe PDF | Ver/Abrir |