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Metodologia integrada para avaliação e mitigação da vulnerabilidade sísmica das construções históricas em alvenaria : a Igreja dos Jerónimos como caso de estudo

Roque, João C. Almendra
Fonte: Universidade do Minho Publicador: Universidade do Minho
Tipo: Tese de Doutorado
Publicado em 19/07/2010 POR
Relevância na Pesquisa
16.07%
Tese de doutoramento em Engenharia Civil / Estruturas; A preservação das construções históricas de elevado valor patrimonial é hoje um tema muito actual nas sociedades modernas tanto mais quanto estas construções desempenham um papel cada vez mais importante na indústrias do turismo e, consequentemente, na economia e na imagem e auto-estima dos países e seus povos. A perigosidade sísmica de Portugal e de muitas outras regiões do globo de que se destacam, pela sua proximidade, os países da bacia Mediterrânica, coloca um elevado número de construções históricas, nomeadamente as construções em alvenaria, particularmente vulneráveis a acções sísmicas, sob potencial risco de colapso. Pese embora a complexidade e a peculiaridade destas construções, em geral caracterizadas por uma falta generalizada de informação de que se destaca a ausência de elementos de projecto e o desconhecimento da constituição interna dos seus elementos estruturais e do seu estado actual, são as lacunas metodológicas ainda existentes no estudo destas construções, geralmente orientado por regras e procedimentos adequados para novas construções, que conduzem frequentemente a intervenções desajustadas ou desproporcionadas à dimensão dos problemas e ao valor patrimonial das construções. Além disso...

Seismic-V : vernacular seismic culture in Portugal

Correia, M.; Carlos, G.; Rocha, S.; Lourenço, Paulo B.; Vasconcelos, Graça; Varum, Humberto
Fonte: Taylor and Francis Publicador: Taylor and Francis
Tipo: Conferência ou Objeto de Conferência
Publicado em //2014 ENG
Relevância na Pesquisa
86.21%
For a long time, reactive seismic retrofitting was focused on monumental heritage and very little on vernacular architecture. In the last years, there has been a growing interest on seismic resistant design and solutions and several research units emerged to produce important research in the scientific field. However, for some time, international focus to address earthquake-damaged buildings was on intrusive techniques and technological materials to retrofit monuments. This paper aims to explore how the research project SEISMIC-V intends to fill the gap regarding this critical research problem. The research will contribute to the awareness and protection of the local seismic culture. The project outcomes will provide data for the strengthening of seismic-resistant architectural components in in-use vernacular heritage.; Fundação para a Ciência e a Tecnologia (FCT)

An overview of seismic strengthening techniques traditionally applied in vernacular architecture

Ortega, Javier; Vasconcelos, Graça; Pereira, Mariana
Fonte: Universidade do Minho Publicador: Universidade do Minho
Tipo: Conferência ou Objeto de Conferência
Publicado em //2014 ENG
Relevância na Pesquisa
76.22%
Specific architectural elements can be identified in vernacular constructions located in regions frequently exposed to earthquakes. Such elements are the result of a seismic culture which has been empirically developed during centuries so that the vulnerability of the buildings is reduced. This research is based on the fact that vernacular architecture may bear important lessons on hazard mitigation. Traditional earthquake resistant technologies can be successfully applied to preserve and retrofit surviving examples without prejudice for its identity. Few papers have focused on strengthening solutions emerging from vernacular architectural heritage. Research is particularly focused on case studies in Portugal where traces of Local Seismic Culture have been identified and documented through direct visual inspection, published information and local narratives. The main goal of this study is the identification and understanding of traditional construction solutions and detailing that, in many cases, have shown to improve the seismic performance of vernacular constructions.; Fundação para a Ciência e a Tecnologia (FCT)

Analysis of Christchurch Catholic Basilica, New Zealand; Anáise da Basílica de Cristchurch, Nova Zelândia

Silva, Luís Carlos Martins da
Fonte: Universidade do Minho Publicador: Universidade do Minho
Tipo: Trabalho de Conclusão de Curso
Publicado em //2013 ENG
Relevância na Pesquisa
25.92%
Dissertação de mestrado integrado em Engenharia Civil (área de especialização em Perfil de Estruturas e Geotecnia); Cultural heritage buildings are structures that enclose a set of particular values which symbolically allow to become part of a given culture identity and continuity. Nowadays, the conservation interventions on these particular structures aim to retain its historic integrity, identity and symbolism by taking into account centuries of ideological evolution, related to aesthetic and technical issues. The interventions in cultural heritage buildings should only be taken after a careful analysis, which includes a diagnosis, safety assessment and the design of possible solutions. Despite the need for some conservation interventions due to lack of maintenance and progressive deterioration, situations of sudden destruction of cultural heritage buildings deserves a special reflection. A numerical model is invariably a valuable tool to assess the structural behavior of these buildings and to influence the final act decision. The present study case is the Christchurch Catholic Basilica, also known as Cathedral of the Blessed Sacrament. It is located in New Zealand and is listed as category I heritage in New Zealand – International or National significance. The four earthquakes events in an approximate period of nine months (September 2010 to June 2011) led to a progressive damage and local collapses. In order to study its structural behavior...

Seismic-V: Vernacular seismic culture in Portugal

Correia, M.; Carlos, G.; Rocha, S.; Lourenço, P. B.; Vasconcelos, G.; Varum, H.
Fonte: CRC Press / Taylor & Francis Group Publicador: CRC Press / Taylor & Francis Group
Tipo: Conferência ou Objeto de Conferência
ENG
Relevância na Pesquisa
56.1%
For a long time, reactive seismic retrofitting was focused on monumental heritage and very little on vernacular architecture. In the last years, there has been a growing interest on seismic resistant design and solutions and several research units emerged to produce important research in the scientific field. However, for some time, international focus to address earthquake-damaged buildings was on intrusive techniques and technological materials to retrofit monuments. This paper aims to explore how the research project SEISMIC-V intends to fill the gap regarding this critical research problem. The research will contribute to the awareness and protection of the local seismic culture. The project outcomes will provide data for the strengthening of seismic-resistant architectural components in in-use vernacular heritage.

Seismic-resistant building practices resulting from local seismic culture

Ortega Heras, Javier; Vasconcelos, Graça; Correia, Mariana
Fonte: Taylor & Francis Group Publicador: Taylor & Francis Group
Tipo: Parte de Livro
Publicado em //2015 ENG
Relevância na Pesquisa
86.26%
Considering that vernacular architecture may bear important lessons on hazard mitigation, this chapter focuses on the European Mediterranean countries and studies traditional seismic-resistant architectural elements and techniques that local populations developed to prevent or repair earthquake damage. This area was selected as a case study because, as a highly seismic region, it has suffered the effect of many earthquakes along the history and, thus, regions within this area are prone to have developed a Local Seismic Culture. After reviewing seismic resistant construction concepts, a wide range of traditional construction solutions that, in many cases, have shown to improve the seismic performance of vernacular constructions of these regions is presented, as a contribution to the general overview of retrofitting building systems provided in this book. The main motivation is that most of these techniques can be successfully applied to preserve and to retrofit surviving examples without prejudice for their identity.

Local seismic cultures: the use of timber frame structures in the south of Portugal

Ortega Heras, Javier; Vasconcelos, Graça; Rodrigues, Hugo; Correia, Mariana
Fonte: Universidade do Minho Publicador: Universidade do Minho
Tipo: Conferência ou Objeto de Conferência
Publicado em //2015 ENG
Relevância na Pesquisa
66.09%
Given the fact that using timber frame structures has proven to improve the seismic behavior of vernacular architecture, as has been reported in past earthquakes in many countries, its preservation as a traditional earthquake resistant practice is important. This paper firstly intends to evaluate whether the use of timber frames as a traditional seismic resistant technique for vernacular architecture in the South of Portugal, traditionally a seismic region, is still active. Secondly, the city of Vila Real de Santo António was selected as a case study because it also followed a Pombaline development contemporary to the reconstruction of Lisbon. The plan included the provision of timber frame partition walls for some of the buildings and, thus, an overview of the type of constructions originally conceived is provided. Finally, the alterations done in the original constructions and the current state of the city center are described and the effect of these changes on the seismic vulnerability of the city is discussed.