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...
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)
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)
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...
Correia, M.; Carlos, G.; Rocha, S.; Lourenço, P. B.; Vasconcelos, G.; Varum, H.
Fonte: CRC Press / Taylor & Francis GroupPublicador: CRC Press / Taylor & Francis Group
Tipo: Conferência ou Objeto de Conferência
Relevância na Pesquisa
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
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.
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.