Browsing by Issue Date, starting with "2019-10-05"
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- França, Oem Country Report, 05Publication . Marques, José Carlos Laranjo; Góis, Pedro; Candeias, Pedro; Ferreira, BárbaraA emigração portuguesa para França tem estado presente na história nacional nos últimos 100 anos, não sendo algo novo para os portugueses. Os anos 60 e 70 foram marcados por uma emigração em massa de portugueses para este país, tendo França sido o principal país de destino da emigração portuguesa durante vários anos. Após a revolução dos cravos, França mantém sempre valores bastante elevados no que respeita o fluxo de entradas de portugueses, especialmente em modalidades migratórias como o reagrupamento familiar e a emigração sazonal. Após a crise económica de 2007/2008 a emigração portuguesa para França volta a intensificar-se, embora com valores inferiores a outros países europeus. Enquanto a emigração portuguesa para este país era maioritariamente composta por baixos níveis de qualificação e de formação e por uma participação em setores de atividade pouco prestigiados, no século XXI, começa a assumir uma maior diversidade de perfis formativos e educacionais.
- BIM-based LCA assessment of seismic strengthening solutions for reinforced concrete precast industrial buildingsPublication . Raposo, Cátia; Rodrigues, Fernanda; Rodrigues, HugoConstruction sector contracts have relevant socioeconomic importance in contrast with its high environmental impact due to the intensive consumption of natural and energy resources throughout the buildings’ service life. Thus, this sector has been object of actions aiming the promotion of low carbon construction and refurbishment given its potential to reduce emissions of greenhouse gases by applying more sustainable materials and techniques. With the development of the building information modeling (BIM) methodology, it is possible to develop the different project specialities in an integrated and collaborative platform since its initial phase, also facilitating the integration of life cycle assessment (LCA). The present work aims to evaluate and compare the environmental impacts of prefabricated concrete elements of new construction and solutions of seismic reinforcement of these elements in an existing building, as well as their costs, through LCA methodology and life cycle cost (LCC). For this purpose, the BIM model of an industrial building with a prefabricated concrete structure was developed and the respective LCA was achieved. It was considered the model of a similar building with 30 years of existence, whose structural calculation not considered the correct strengthening to face seismic actions. The respective seismic reinforcement solution was analyzed, and the corresponding LCA was accomplished. For each case, the LCC was calculated. The analysis of the two buildings highlighted the importance of rehabilitation in the construction sector, since the environmental impacts and the associated costs are reduced when compared to the construction of a new building.