An index-based method for evaluating seismic retrofitting techniques. Application to a reinforced concrete primary school in Huelva.
A project named PERSISTAH (Projetos de Escolas Resilientes aos SISmos no Território do Algarve e de Huelva, in Portuguese) is being developed. It aims to cooperatively assess and improve the seismic vulnerability of primary schools in the Algarve (Portugal) and Huelva (Spain). A large number of scho...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2019-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0215120 |
| _version_ | 1818930576153903104 |
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| author | María-Victoria Requena-García-Cruz Antonio Morales-Esteban Percy Durand-Neyra João M C Estêvão |
| author_facet | María-Victoria Requena-García-Cruz Antonio Morales-Esteban Percy Durand-Neyra João M C Estêvão |
| author_sort | María-Victoria Requena-García-Cruz |
| collection | DOAJ |
| description | A project named PERSISTAH (Projetos de Escolas Resilientes aos SISmos no Território do Algarve e de Huelva, in Portuguese) is being developed. It aims to cooperatively assess and improve the seismic vulnerability of primary schools in the Algarve (Portugal) and Huelva (Spain). A large number of schools have to be analysed. In order to determine which seismic retrofitting technique is optimal, an index-based method is presented in this paper. It considers three parameters: first, the efficiency of the seismic retrofitting technique in relation to the structural improvement obtained; second, the cost of the implementation of the retrofitting technique; and third, the architectural impact. It should be mentioned that a specific measurement for each solution according to its geometry has been performed. Also, coefficients to consider the singularities of each analysis and the importance of the parameters (number of buildings, typology, available funds, etc.) in the study are considered. The most representative primary school of Huelva has been chosen to test the index-based method. The most suitable retrofitting techniques for this type of buildings have been tested. The retrofitting technique which most increased the seismic performance has been the addition of X and V bracings within the building's bays. Furthermore, the analyses have revealed that adding the retrofitting elements in the most vulnerable direction of the building provides a high efficiency. The results have also shown that implementing techniques of lower architectural impact gives acceptable results. The analysis of the mean damage level index has shown that the building would experiment a severe damage. All the retrofitting techniques applied have reduced it, at least, up to moderate damage. Finally, it should be noted that the position of the retrofitting elements is also paramount for providing an optimal retrofitting. |
| first_indexed | 2024-12-20T04:02:53Z |
| format | Article |
| id | doaj.art-d5531fb4f15343cc881fbd98d819c73d |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-20T04:02:53Z |
| publishDate | 2019-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-d5531fb4f15343cc881fbd98d819c73d2022-12-21T19:54:07ZengPublic Library of Science (PLoS)PLoS ONE1932-62032019-01-01144e021512010.1371/journal.pone.0215120An index-based method for evaluating seismic retrofitting techniques. Application to a reinforced concrete primary school in Huelva.María-Victoria Requena-García-CruzAntonio Morales-EstebanPercy Durand-NeyraJoão M C EstêvãoA project named PERSISTAH (Projetos de Escolas Resilientes aos SISmos no Território do Algarve e de Huelva, in Portuguese) is being developed. It aims to cooperatively assess and improve the seismic vulnerability of primary schools in the Algarve (Portugal) and Huelva (Spain). A large number of schools have to be analysed. In order to determine which seismic retrofitting technique is optimal, an index-based method is presented in this paper. It considers three parameters: first, the efficiency of the seismic retrofitting technique in relation to the structural improvement obtained; second, the cost of the implementation of the retrofitting technique; and third, the architectural impact. It should be mentioned that a specific measurement for each solution according to its geometry has been performed. Also, coefficients to consider the singularities of each analysis and the importance of the parameters (number of buildings, typology, available funds, etc.) in the study are considered. The most representative primary school of Huelva has been chosen to test the index-based method. The most suitable retrofitting techniques for this type of buildings have been tested. The retrofitting technique which most increased the seismic performance has been the addition of X and V bracings within the building's bays. Furthermore, the analyses have revealed that adding the retrofitting elements in the most vulnerable direction of the building provides a high efficiency. The results have also shown that implementing techniques of lower architectural impact gives acceptable results. The analysis of the mean damage level index has shown that the building would experiment a severe damage. All the retrofitting techniques applied have reduced it, at least, up to moderate damage. Finally, it should be noted that the position of the retrofitting elements is also paramount for providing an optimal retrofitting.https://doi.org/10.1371/journal.pone.0215120 |
| spellingShingle | María-Victoria Requena-García-Cruz Antonio Morales-Esteban Percy Durand-Neyra João M C Estêvão An index-based method for evaluating seismic retrofitting techniques. Application to a reinforced concrete primary school in Huelva. PLoS ONE |
| title | An index-based method for evaluating seismic retrofitting techniques. Application to a reinforced concrete primary school in Huelva. |
| title_full | An index-based method for evaluating seismic retrofitting techniques. Application to a reinforced concrete primary school in Huelva. |
| title_fullStr | An index-based method for evaluating seismic retrofitting techniques. Application to a reinforced concrete primary school in Huelva. |
| title_full_unstemmed | An index-based method for evaluating seismic retrofitting techniques. Application to a reinforced concrete primary school in Huelva. |
| title_short | An index-based method for evaluating seismic retrofitting techniques. Application to a reinforced concrete primary school in Huelva. |
| title_sort | index based method for evaluating seismic retrofitting techniques application to a reinforced concrete primary school in huelva |
| url | https://doi.org/10.1371/journal.pone.0215120 |
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