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- Choreographing network-based influences on the homeowners’ decision journey about energy-related renovationsPublication . Abreu, Maria Isabel; Oliveira, Rui; Lopes, JorgeCommunity engagement with the energy efficiency in housing is seen as a very challenging strategy that governments need to prioritize for climate agenda. Recent studies shed light on the underlying influences of some networks of actors in the homeowners’ decision to improve the energy-efficiency of their homes. Understanding the accurate role that both social and professional networks within communities play among homeowners seems to be paramount for energy policies enlargement and effectiveness. In a network level perspective, interpersonal communication, which has so far been undervalued, appears to be an influential mode of trust and information to energy-related activities. An exploratory research has been carried out in order to gain a sense about the whole chain in action between the above mentioned actors as agents of change. Semi-structured in-depth interviews with different Portuguese stakeholders involved in the renovation journey of owner occupied single-family houses were conducted. The findings signpost that interpersonal networks play a trustworthy and beneficial source of information along the entire renovation decision-making journey. In general, these interpersonal connections are conveyed in the social network activating the homeowners’ willingness to renovate, being a reliable channel for peer learning, guiding homeowners in the selection of professionals and acting also as an evaluative judgement tool to assess these same professionals in their technical advice. The results strengthen the view that the sense of neighbourliness, proximity and cooperation between citizens engaged in energy issues could pave the way to empower these utmost interpersonal networks which can have positive effects to encouraging house energy improvements.
- Analysis of lean construction influence in building processes using BIM 4D: case studyPublication . Ferrer, Pedro António Mareca; Ribeiro, Rodrigo S.; Oliveira, RuiA construção é um sector de actividade que remonta da antiguidade e com grande importância para as sociedades. A qualidade das obras da construção envolve diversos processos e etapas que têm de ser geridos de forma acertiva. Durante a execução de uma obra que atende aos pressupostos LEAN construction, existem processos que podem ser melhorados com vista a uma maior eficiência, produtividade e consequente controlo da obra. Seguindo a filosofia do LEAN, a par da utilização de ferramentas BIM 4D é possível detalhar a obra de forma virtual e adicionar o recurso tempo nos processos da obra, possibilitando ver o seu estado de execução praticamente em tempo real, face ao prazo estimado. Este artigo utiliza a tecnologia BIM 4D do software REVIT e Navisworks da Autodesk, alicerçado nos pressupostos do LEAN construction, aplicado a um caso de estudo de uma obra de reabilitação de um edifício em estrutura metálica. A utilização do software Microsoft Project permite o desenvolvimento do planeamento da obra para ser adicionado na dimensão 4D no software BIM utilizados. Os resultados evidenciam uma relação de redução de prazos de diferentes processos de execução e montagem da estrutura metálica, que quando aplicados os conceitos do LEAN construction mostram consideráveis melhorias comparativamente com os processos convencionais que foram constatados em situação real dessa obra.
- Mamgement of the different phases of an irrigation DAM construction project: case studyPublication . Quiñones Martínez, Ruben; Oliveira, RuiThis article develops the procedural basis of documentary management of projects in different phases of development of a project, using an exhaustive bibliographic review, denoting some differences and particularities among countries and even among authors, especially in organization procedures. A case study was conducted comparing the regulatory assumptions and bibliography on the subject, with the real management of a construction project of an irrigation dam. At first, it was undertaken a consultation of the various documents that constitute the dam design project along the different phases of its development. Subsequently, in order to complement the gathered information during the investigation, as well as to respond to other omissions research questions even after the documentary consultation, an interview supported by a questionnaire with the dam designer was conducted. The main results of the research allow the convergence of scattered and unclear information about which documents are mandatory in each phase of the project, being this unclearly specified in the regulations. The case study of a real construction project of a dam irrigation allows to analyze beyond the required documents at each phase of the development project. And also, the case study contributes to understanding the role of the different stakeholders throughout the process, and the criteria that supports their decisions to move forward to the next phases of a project.
- Combate a incêndios por bombeiros do distrito de Bragança: conforto e satisfação no uso do equipamento de proteção individual (EPI)Publication . Veiga, Vanessa Isabel Rodrigues; Oliveira, RuiA evolução do Equipamento Proteção Individual (EPI) permitiu que fosse todo o equipamento, bem como qualquer complemento/acessório, destinado a ser utilizado pelo trabalhador para se proteger contra riscos, na sua segurança e saúde. Estes equipamentos são fundamentais à protecção dos bombeiros aquando do combate a incêndios. De forma a perceber se os bombeiros estão devidamente equipados e se sentem segurança nos seus equipamentos, realiza-se este trabalho de investigação, sendo que o principal objectivo é saber qual o nível de satisfação dos bombeiros em relação aos EPI de incêndios urbanos e florestais. Este estudo foi aplicado em todas as corporações do distrito de Bragança através de um questionário dirigido a bombeiros em atividade. Os resultados permitem perceber os bombeiros do distrito de Bragança sentem-se condicionados pelo peso e pela falta de isolamento térmico de alguns EPI durante o decorrer da sua atividade, tanto em incêndio urbano como florestal.
- Atualizações de revisão de preços comparada com custos reais de mercados dos materiais: estudo de casoPublication . Oliveira, Rui; Lopes, Jorge; Abreu, Maria IsabelO controlo de custos de empreitadas envolve maior rigor, exigindo metodologias e gestão cada vez mais ajustada às respetivas obras. Os consideráveis aumentos de custos de materiais, promovido pela atual conjuntura de mercado global, exigem tomadas de decisão ajustadas à realidade. A revisão de preços aplicável às empreitadas tem em consideração a atualização de preços com base nos índices atualizados de materiais, mão-de-obra e de equipamentos, onde por vezes não compensam a efetiva real subida desses preços. A recente legislação que alterou o regime aplicável da revisão de preços contempla a possibilidade de os interessados apresentarem correção ou alteração do regime de revisão de preços, quando a apresentada esteja desajustada às especificidades da empreitada ou quando a mesma seja omissa no caderno de encargos. O artigo envolve casos de simulação real de uma obra onde foi aplicada revisão de preços, fazendo-se comparações entre a compensação retribuída ao empreiteiro atendendo ao preço de determinados materiais na data considerada base de cálculo, e comparando com a efetiva inflação desses materiais, sob a forma de diferentes cenários com base na recente legislação. Este estudo demonstra, que mantendo as fórmulas que servem de base ao cálculo da revisão de preços, é possível o empreiteiro ter retribuições que podem ser suficientes para compensar as eventuais subidas de preços de mercado, sem aplicar outras modalidades, podendo os problemas de gestão ter outras causas. Em oposição determinados ajustamentos da fórmula tipo de revisão de preços pode revelar retribuições superiores aos custos reais de mercado dos materiais.
- Protective equipment applicable to a centralized cytostatic preparation unitPublication . Gonçalves, Ana; Oliveira, Rui; Fernandes, Paula OdeteOccupational exposure to cytotoxic agents has been recognized as a potential danger to the health of handlers. However, collective and individual protection equipment has been developed for use by professionals. This article aims to identify and describe the protection equipment applicable to a centralized unit of cytostatics preparation, using a qualitative and quantitative descriptive analysis. A questionnaire survey yielded 83 responses, covering 18 centralized cytostatic preparation units. The results show some weaknesses detected in some institutions such as the absence of a shower and eyewash fountain, the lack of knowledge about the procedures manual, and the use of a surgical mask. However, the results point to awareness by the general manipulators regarding the use of some personal protective equipment. This study contributes to the investigation of the use of equipment for the protection of cytostatic manipulators at work in centralized cytostatic preparation units.
- Some refurbishment particularities: an older building case studyPublication . Oliveira, Rui; Lopes, Jorge; Abreu, Maria IsabelPortugal has many old buildings with historical and cultural values in advanced degradation. Many of them have an architectural interest, special values and some other characteristics with interest to preserve, which contribute to keeping the building originality and singularity. These building could be retrofitted for new facilities of uses increasing the levels of comfort similar to new buildings. However, all project management of that kind of buildings is more specific, complex and requires special knowledge in the management of the particularities of their work, even other factors related with misunderstandings, inheritance problems, and many others. This research describes a case study that involves the surveying of constraints and other problems concerning the retrofitting works of an old building located in Montesinho village (Bragança-Portugal). In their retrofitting works were applied some parameters of the “Retrofitting management system for buildings located in consolidated urban areas” to support the project design and the building existential particularities. Besides, the management system considers regulations obliged, sustainable practices and possible constraints particularities for that old building case study's project management. The results show constraints, problems, but also solutions application to solve and reduce them, being a contribution to many other old buildings with similar retrofitting needs.
- Use of building information modeling in building management retrofitting projects: case studiesPublication . Pinto, Rodrigo; Oliveira, Rui; Lopes, JorgeThe retrofitting works of buildings is a different practice of the new construction works, involving the previous characterization of the existing elements and their conservation conditions. All existing data collection, project analysis and project management might be in a dimension where non-digital handling is a difficulty factor for the project. That could contribute losing important data related to technical support and for stakeholder’s decision. The Building Information Modelling (BIM) technologies are known to be an excellent choice handling information for new projects. However, its usage and potential in retrofitting works may remain unknown or not utilized for several reasons. The main goal of this research is to determine, using SWOT analysis tool, for the various phases of building retrofitting projects connected to the potential of BIM. In addition, it is expected to determine whether this technology is a feasible solution for these cases and what constraints are involved. Through data collection in design phase and interviews after the research and BIM analysis, three different retrofitting works case studies were analysed. At the same time of the BIM analysis, SWOT methodology was applied aiming to understand the reasoning, constraints and to identify opportunities. The BIM methodology was applied to three design projects studied in 3D and 4D spheres. The 3D analysis aimed to detect incompatibilities among the various disciplines of the projects and information related to the existing elements. The 4D analysis consisted in associating all the building elements with the construction-scheduling plan in order to analyse the activities sequencing behaviour. The use of BIM prove the existence of several flaws and incompatibilities between the different projects disciplines of each building studied, which being difficult to detect them without this uses. These failures generate problems in the construction phase, whose interviews expect demystify. On the other hand, BIM application at an early stage of the project leads to the resolution of some of these problems that arise posteriorly.
- Planning and management of agriculture warehouse conversion project: a case studyPublication . Oliveira, Rui; Abreu, Maria Isabel; Lopes, JorgeO Planeamento é uma atividade crucial para o sucesso de um projeto. Os imprevistos acontecem mesmo utilizando técnicas de planeamento ajustadas à realidade, exigindo experiência na gestão de obra e de tomadas de decisão acertadas no momento certo. O estudo de caso objeto de descrição neste artigo envolve o planeamento estudado em fase de projeto recorrendo a quantidades de trabalhos, rendimentos de trabalhos, estimativa de equipas e de prazos, bem como o consequente encadeamento de diferentes tarefas, numa obra de adaptação de um edifício de apoio agrícola numa Capela dedicada à Santíssima Trindade. Atendendo às diferentes perspectivas de planeamento recorreu-se a entrevistas de opinião de 5 empreiteiros, conhecendo-se a partir do seu contributo o tempo estimado de execução da obra, e numa outra vertente foi calculado o prazo da obra com base no cálculo de rendimentos. Estas diferentes abordagens de planeamento permitiram com maior rigor aferir o prazo limite imposto para a obra. Apesar de o projeto envolver complexidade técnica sobretudo na coordenação de diferentes especialidades e áreas técnicas específicas, tais como trabalhos de subempreitadas e sua articulação com trabalhos de escultura, constatou-se em obra que as decisões ponderadas em projeto foram acertadas, bem geridas e com riscos controlados. A eliminação de erros do projeto, gestão antecipada de imprevistos, redução de constrangimentos e de divergências nos desvios em obra, permitiram o cumprimento do prazo previsto em projeto de apenas 57 dias, comparando-se os resultados dos diferentes cenários de planeamento estudados com o ocorrido na realidade.
- Management of the different phases of an irrigation DAM construction project: case studyPublication . Quiñones Martínez, Ruben; Oliveira, RuiThis article develops the procedural basis of documentary management of projects in different phases of development of a project, using an exhaustive bibliographic review, denoting some differences and particularities among countries and even among authors, especially in organization procedures. A case study was conducted comparing the regulatory assumptions and bibliography on the subject, with the real management of a construction project of an irrigation dam. At first, it was undertaken a consultation of the various documents that constitute the dam design project along the different phases of its development. Subsequently, in order to complement the gathered information during the investigation, as well as to respond to other omissions research questions even after the documentary consultation, an interview supported by a questionnaire with the dam designer was conducted. The main results of the research allow the convergence of scattered and unclear information about which documents are mandatory in each phase of the project, being this unclearly specified in the regulations. The case study of a real construction project of a dam irrigation allows to analyze beyond the required documents at each phase of the development project. And also, the case study contributes to understanding the role of the different stakeholders throughout the process, and the criteria that supports their decisions to move forward to the next phases of a project.
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