Após os sismos recentes ocorridos no sul da europa nos últimos anos tem sido realizadas diversas visitas às zonas afetadas. Após cada visita foram analisados os dados recolhidos com o objetivo de interpretar os danos sofridos pelos diferentes tipos de construção, nomeadamente, as estruturas de alvenaria e de betão armado. Foram também observados os procedimentos de emergência desenvolvidos na gestão da catástro...
Após os sismos recentes ocorridos no sul da europa nos últimos anos tem sido realizadas diversas visitas às zonas afetadas. Após cada visita foram analisados os dados recolhidos com o objetivo de interpretar os danos sofridos pelos diferentes tipos de construção, nomeadamente, as estruturas de alvenaria e de betão armado. Foram também observados os procedimentos de emergência desenvolvidos na gestão da catástro...
Nepal is located in one of the most severe earthquake prone areas of the world, lying between collisions of Indian to the Eurasian plate, moving continuously, resulting in frequent devastating earthquakes within this region. Moreover, different authors refer mention that the accumulated slip deficit (central seismic gap) is likely to produce large earthquakes in the future. Also, the analysis of the available i...
Earthquakes represent one of the main cause of serious damage and loss of historic and architectural heritage. Interventions to preserve these building should start with a careful knowledge and assessment of their seismic vulnerability, in order to support any needed retrofitting and strengthening measures. This paper proposes a procedure to register and diagnose of the level of damage on churches after the occ...
In the last decades the evaluation of the seismic risk are of rising concern, considered essential in the activity and definition of strategy planning and urban management. The evaluation of the seismic vulnerability of the existent building stock in the perspective of the seismic risk mitigation should not be placed only in relation to the isolated buildings of relevant historical and cultural importance, but ...
The seismic vulnerability assessment of old traditional masonry building stocks, in a seismic risk mitigation perspective, is truly essential not only for buildings with recognized historical and patrimonial value, but also, in relation to regular buildings. In this sense, this paper approaches the issue of the seismic vulnerability assessment of masonry buildings through the application of a simplified methodo...
This paper presents the application of an existing simplified displacement-based procedure to the characterization of the nonlinear force-displacement relationship for the out-of-plane behaviour of unreinforced traditional masonry walls. According to this procedure, tri-linear models based on three different energy based criteria were constructed and confronted with three experimental tests on existing stone ma...
A inspecção constitui a primeira tarefa na avaliação da condição de um edifício, compreendendo desde logo a identificação e o registo das suas anomalias de carácter estrutural e não estrutural. No caso particular dos edifícios antigos, e devido ao desconhecimento generalizado das técnicas e materiais de construção tradicionais, estas acções de inspecção revelam-se frequentemente inadequadas, comprometendo desta...
The earthquake of the 9th of July 1998 that hit in the central group of the Azores archipelago greatly affected the islands of Faial, Pico and São Jorge, reaching a magnitude of Mw 6.2 with the epicentre located about 15km northeast of the Faial Island. This earthquake allowed the collection of an unprecedented quantity of data concerning the characterisation of the building stock and the damage suffered by con...
The evolution of the urban layout is of great importance in the seismic behaviour of buildings in urban areas. The chronological construction process frequently results in characteristic heterogeneity of masonry wall fabric and connection quality. In addition, buildings do not constitute independent units given that they share the midwalls with adjacent buildings and the façade walls are aligned. Thus, as post-...
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