Publications

Buildings are subjected to deformations of their reinforced concrete structure due to vertical loadsthat can lead, in certain cases, to the significant cracking of the unreinforced masonry (URM) infill walls,therefore requiring the development of specific knowledge of these types of deformations in order to minimisethem.Aiming the evaluation of buildings with reinforced concrete structures subjected to vertical deformations, themechanical characteristics of their infill masonry walls, as well as of their interface with the supportingconcrete elements, are here analysed. The basic compression behaviour of brick masonry is assessedparticularly through the previous analysis of a vertical compression test of a masonry specimen. Themechanical behaviour characteristics of the constituents (bricks, and mortar joints) are analysed to account fortheir influence on the compression behaviour of masonry infill, aiming particularly for the prevision of theircracking in case of vertical deformations of the supporting reinforced concrete (RC) elements. Based on thatevaluation, the analysis of masonry walls subjected to vertical deformations of their supports is made throughthe assessment of the relevant characteristic behaviour of masonry wall-beam/slab assembly in case of verticalload. A general modelling approach of the behaviour of URM infills and the interaction with their supports isgenerally accessed. Finally, the preventive control of deformations of masonry wall-beam/slab assembly isdiscussed.

Buildings are subjected to deformations of their reinforced concrete structure due to vertical loads that can lead, in certain cases, to the significant cracking of the unreinforced masonry (URM) infill walls, therefore requiring the development of specific knowledge of these types of deformations in order to minimise them.Aiming the evaluation of buildings with reinforced concrete structures subjected to vertical deformations, themechanical characteristics of their infill masonry walls, as well as of their interface with the supportingconcrete elements, are hereanalysed. The basic compressionbehaviour of brick masonry is assessedparticularly through theprevious analysis of a vertical compression test of a masonry specimen. Themechanical behaviour characteristics of the constituents (bricks, and mortar joints) are analysed to account for their influence on the compression behaviour of masonry infill, aiming particularly for the prevision of theircracking in case of vertical deformations of the supportingreinforced concrete (RC) elements. Based on thatevaluation, the analysis of masonry walls subjected to vertical deformations of theirsupports is made throughthe assessment of the relevant characteristic behaviour of masonry wall-beam/slab assembly in case of vertical load. A general modelling approach of the behaviour of URM infills and the interaction with their supports is generally accessed. F inally, the preventive control of deformations of masonry wall-beam/slab assembly is discussed

As funções financeiras e as funções relacionadas com o desempenho técnico e funcional (não financeiras) estão incorporadas nas atividades de gestão do ciclo de vida de qualquer dos ativos construídos. Essas funções fornecem informação relevante para o estabelecimento de estratégias de operação e de manutenção, bem como para o processo de tomada de decisão relacionado com investimentos a longo prazo em reparações, substituições e reabilitações. O objetivo deste artigo é demonstrar os efeitos da utilização destes dois tipos de funções nas decisões estratégicas de longo prazo da gestão de ativos. Esta demonstração é feita por recurso a uma análise de informação financeira, técnica e funcional de portefólios de edifícios. Para tal, apresenta-se um caso de estudo de dois edifícios escolares públicos construídos, respetivamente nas décadas de 40 e 80 do século passado, nos quais foram realizadas intervenções profundas de reabilitação no ano de 2010. Consideram-se e comparam-se os efeitos das funções utilizadas para apoiar o processo de tomada de decisão nos períodos que antecederam e sucederam essas intervenções. Os resultados dos cálculos de taxas de depreciação funcional equivalente e financeiras, mostram um desalinhamento entre funcões financeiras e não financeiras e realçam a importância de que se promova esse alinhamento, tendo em vista uma otimização da gestão do ciclo de vida destes edifícios.

A segurança das pessoas e o elevado valor dos bens construídos e dos seus conteúdos, bem como a sua criticidade na satisfação das necessidades básicas e bem-estar das comunidades, sempre suscitaram preocupações quanto à sustentabilidade, resiliência e fiabilidade do ambiente construído. A resiliência dos ativos construídos está frequentemente ligada à formulação de políticas e estratégias para o ambiente construído após eventos catastróficos ou traumáticos. É um conceito multidimensional que abrange aspetos físicos, infraestruturais,ambientais, económico-sociais, regulamentares e organizacionais. O presente artigo apresenta os resultados da aplicação de um sistema de classificação de resiliência assente numa abordagem holística, abrangente e sistemática, a diferentes tipos de edifícios, em qualquer fase do seu ciclo de vida. Em particular, analisa a resiliência de edifícios de escolas públicas portuguesas a diferentes riscos do ponto de vista da engenharia, nomeadamente no que diz respeito à segurança estrutural e de manutenção do edifício. Os edifícios escolares analisados, construídos ao longo do século XX, tiveram intervenções alargadas, entre 2009 e2011, no âmbito de um programa nacional de investimento público. Os edifícios foram analisados antes e após intervenções de reabilitação. Relativamente a indicadores económicos e a investimento potencial, nota-se que as intervenções de reabilitação apresentam impacto positivo na classificação da resiliência

The external envelope of buildings with reinforced concrete structures (RCS buildings) is subjected to environmental actions, particularly related to wind-driven rain (WDR), external humidity variations, and rising dampness, which can cause significant variations in moisture content to their unreinforced masonry (URM) infill walls, mainly associated to water penetration across that envelope. The consequent moisture transfer across the envelope can change the mechanical response of the URM infill walls and lead to their cracking, which could aggravate the referred water penetration, with a subsequent increase in the risk of building envelope degradation. In reverse, the effects of mechanical loads on moisture transfer across that envelope can be also relevant, in terms of change in the moisture content of these URM infill walls. The aim here is to analyze this type of mutual effect between moisture transfer and mechanical response in URM infill walls of RCS buildings. Essential elements about the characteristics of moisture transfer across URM infill walls and of the interface resistance with moisture flows are summarily described, and the essential evaluation of the mechanical behavior of URM infill walls when subjected to moisture variations is carried out. Moisture transport characteristics are discussed, focusing on analyses of the behavior of masonry elements when subjected to moisture variations. An initial assessment of the mechanical behavior of URM infill walls when subjected to different moisture variations is made through a compression test of a brick masonry specimen with variable moisture content. Following that analysis, an evaluation is made of the moisture transfer in URM infills, as well as the influence of the interface between layers in that moisture transfer and, subsequently, an assessment is made of hygromechanical couplings. Finally, elements for prevention about the causes of degradation of URM infill related to humidity and mechanical actions in the RCS building envelope are discussed.

Buildings with reinforced concrete structure (RCS buildings), including unreinforced masonry (URM) infill walls, can be negatively affected by anomalies in their envelope, such as cracking and water penetration, which worsen the aesthetic aspect and reduce the safety and level of comfort of those buildings. To access the relevance of these anomalies and their evolution along service life, a corresponding survey and monitoring during service life are essential. Non-destructive test methods (NDT), in particular ultrasonic pulse velocity (UPV) testing, are currently used in that survey and monitoring. In the context of monitoring the degradation of the URM infill walls and access their impact on the durability of the RCS building envelope, UPV testing can be a type of NDT method to be used, considering that it can contribute to the evaluation of the state of conservation of the construction elements, such as masonry and concrete. It is intended here to access the potential use of UPV testing in the monitoring of anomalies related to the degradation of building facades due, particularly, to cracking and to water penetration associated with WDR (wind driven-rain). The preliminary assessment of the use of UPV testing is made through the previous analysis of the results of the application of UPV testing for the detection of sub-surface and surface cracking in compression tests of masonry specimens. Following that analysis, an evaluation is made of the conditioning aspects of the use of UPV testing to access durability problems of the building envelope. Particularly, the main characteristics of cracking with interest for the assessment of the potential use of UPV testing are generally discussed. And, finally, an evaluation is made of the risk of water penetration through the cracks, for potential use of UPV testing in monitoring the presence of humidity in the cracks.

Buildings with reinforced concrete structure (RCS buildings), including unreinforced masonry (URM) infill walls, can be negatively affected by anomalies in their envelope, such as cracking and water penetration, which worsen the aesthetic aspect and reduce the safety and level of comfort of those buildings. Toaccess the relevance of these anomalies and their evolution along service life, a corresponding survey andmonitoring during service life are essential. Non-destructive test methods (NDT), in particular ultrasonic pulsevelocity (UPV) testing, are currently used in that survey and monitoring. In the context of monitoring thedegradation of the URM infill walls and access their impact on the durability of the RCS building envelope,UPV testing can be a type of NDT method to be used, considering that it can contribute to the evaluation of the state of conservation of the construction elements, such as masonry and concrete.It is intended here to access the potential use of UPV testing in the monitoring of anomalies related to thedegradation of building facades due, particularly, to cracking and to water penetration associated with WDR(wind driven-rain). The preliminary assessment of the use of UPV testing is made through the previous analysis of the results of the application of UPV testing for the detection of sub-surface and surface cracking in compression tests of masonry specimens. Following that analysis, an evaluation is made of the conditioning aspects of the use of UPV testing to access durability problems of the building envelope. Particularly, the main characteristics of cracking with interest for the assessment of the potential use of UPV testing are generally discussed. And, finally, an evaluation is made of the risk of water penetration through the cracks, for potential use of UPV testing in monitoring the presence of humidity in the cracks.

Urban resilience is an increasingly important topic because of the need to protect and optimize the value derived from the urban built environment with its constructed assets. But there is still no harmonized definition or a consensual set of descriptors for this multi-dimensional concept. This paper aims to address this knowledge gap by outlining an Urban Resilience Evaluation System (URES) with a breakdown structure of 16 indicators and 75 parameters grouped into five interrelated dimensions: environmental, economic, organizational, social, and technical. The resilience scoring of the constructed assets relies on a novel Multi-Criteria Decision Analysis (MCDA) approach adapted from the Analytic Hierarchy Process (AHP) method. This novel approach involves Automated Rational and Consistent Decision Making (ARCDM) to pre-conceptualize and simulate behavior scenarios of a virtual panel of experts with different perspectives. These behavior scenarios are organized into a pairwise multilayer decision-making matrix that overrides the need for surveys. The authors use a portfolio of buildings with seven different use types (residential, research facilities, schools, hospitals, industrial facilities, shopping centers, and hotels) to test the applicability of the proposed URES breakdown structure for buildings with different levels of importance. This allows the comparison and validation of various ranges of results expressing different perspectives.The proposed methodology can be readily used by various stakeholders of the Architecture, Engineering,Construction, and Operation (AECO) sectors involved in the lifecycle management decisions and activities ofconstructed assets. It impacts feasibility studies, design, construction, operation and maintenance, rehabilitation, and disposal of constructed assets that comprise the built environment for cities and societies.

A reabilitação de edifícios tem crescido nos últimos anos, sendo uma das áreas com maior investimento do setor público e privado. O desafio na reabilitação de edifícios permite reduzir o uso de recursos, tentando reduzir o impacto ambiental e tornando o setor de construção mais eficiente. O principal objetivo da pesquisa desenvolvida é compreender como o uso de ferramentas digitais permite uma abordagem mais eficiente na reabilitação energética de um edifício. Desta forma, e considerando diferentes soluções de reabilitação, é possível realizar uma análise de alternativas, comparando-as com a solução base e assim sendo capaz de compreender quais são os ganhos energéticos, bem como a solução ótima. Os resultados serão apresentados possibilitando a comparação com medidas reais e os parâmetros de referência dos padrões para desempenho térmico. A possibilidade de editar as propriedades térmicas dos materiais de construção considerados, permite a realização de várias simulações com diversas combinações de possíveis melhorias. Os resultados obtidos podem ser parte integrante de uma análise de custo-benefício para apoiar a tomada de decisão

N/A

The Architecture, Engineering, Construction and Operation (AECO) sector is one of the most demanding in terms of the use of natural resources. It is estimated that this sector has a 10% stake in the Portuguese economy and a consumption of natural resources and energy of around 50%. One of the causes for this disproportion is a production model based on a linear economy, where there is great waste of raw material and little rationalization for recycling and reuse. A major challenge is then imposed on all those involved in this area: to develop production models that involve the sharing, reuse, repair, renovation and recycling ofexisting materials and products, thus extending their life cycle.In addition to this new global challenge, aligned with the United Nations (UN) Sustainable Development Goals, the generation of more information in the construction field makes Construction Information Classification Systems (CICS) even more relevant in the organization, treatment, and recovery of these. But studying in more detail the structure of CICS, they need adaptations and changes that make them more efficiently classify information based on sustainable concepts and the circular economy that assist in decision-making and make the sector more sensitive in choosing more economical and environmentally efficient materials,components, and processes.The Sustainability Enhanced Construction Classification System (SECClasS) Project presents a solution that unifies these challenges, proposing to develop and implement a CICS optimized for sustainability, based on the principles of Circular Economy,aiming to reduce construction waste and demolition, using digital tools that help and promote the careful selection and management of elements with less environmental impact.This article describes the assumptions for the development of a Portuguese CICS, that adapts systems already established at an international level, such as: i) UniClass (United Kingdom); ii) OmniClass (North America); iii) CCS (Denmark); iv) CoClass (Sweden);and v) CCI (Estonia, Czech Republic, Norway, Denmark, Sweden, and Finland). International standards ISO 12006 and ISO 81346, as well as the Action Plan for the Circular Economy defined by the European Union in 2020 are also analyzed. The proposed assumptions aim to obtain a CICS that streamline decision-making processes in AECO sector, reducing negative environment impacts and promoting sustainability.

A frequência de ocorrência de eventos naturais extremos tem vindo a aumentar nos últimos anos, bem como os impactes em termos de vidas humanas e de prejuízos em ativos construídos que suportam o funcionamento da sociedade e o desenvolvimento económico e social sustentável. Perspetiva-se que a ocorrência de eventos naturais extremos, bem como os seus impactes, continuarão a aumentar devido às mudanças climáticas e ao aumento da exposição e vulnerabilidade provocada pela urbanização de crescimento intenso. Esta situação tem implicações da maior importância e relevância em termos de consideração da resiliência das estruturas no longo prazo.Neste contexto, o Regulamento dos Produtos da Construção (RPC) prevê que os ativos construídos devam, no seu todo e nas partes constituintes, estar aptos, em qualquer momento e perante qualquer solicitação, para o uso a que se destinam devendo satisfazer, em condições normais de manutenção, sete requisitos básicos durante um período de vida útil economicamente razoável, designadamente: i) resistência mecânica e estabilidade; ii) segurança contra incêndio; iii) higiene, saúde e ambiente; iv) segurança e acessibilidade na utilização; v) proteção contra o ruído; vi) economia de energia e isolamento térmico; vii) utilização sustentável dos recursos naturais. Evidencia-se assim a grande importância de, tendo em conta a grande diversidade de ativos construídos em momentos diferentes e com diferentes níveis de exigência, diferenciar a real capacidade dos mesmos em função destas exigências.O presente artigo visa assim apresentar uma metodologia que permite diferenciar os níveis de resposta de estruturas de betão armado em termos do primeiro requisito do RPC (resistência mecânica e estabilidade) aquando da ocorrência de eventos naturais extremos, designadamente ações climáticas e ações sísmicas.

A resiliência de edifícios e obras de engenharia civil tem atraído a atenção de diversos intervenientes, incluindo profissionais de engenharia de várias áreas, cientistas, organismos de normalização, investidores e instituições financeiras, agências reguladoras, entre outros. Este interesse decorre da visão mais ampla de que a resiliência é uma questão fundamental para alcançar os Objetivos de Desenvolvimento Sustentável (ODS), nomeadamente no que diz respeito às questões humanitárias e à necessidade de fornecer à Humanidade, incluindo a grupos mais vulneráveis, um ambiente mais adaptado a riscos de desastre futuros. Os esforços recentes ao nível da normalização (ISO 22845) conduziram a um panorama estruturado da informação relevante sobre resiliência de edifícios e obras de engenharia civil, nomeadamente no que diz respeito ao próprio conceito e aos riscos e contramedidas. Com relação aos conceitos, a ISO 22845 classifica resiliência em diferentes contextos e apresenta definições de resiliência que estão em desenvolvimento.O presente artigo baseia-se nesses esforços e discute o impacto que os requisitos da ISO 22485 podem ter no aprimoramento da compreensão conceptual da resiliência no setor da Arquitetura, Engenharia, Construção e Operação (AECO) e no aprimoramento de estratégias para a gestão de riscos naturais extremos (climáticos e ações sísmicas). Tem por objetivo analisar os efeitos no custo do ciclo de vida da incorporação de contramedidas relacionadas com redução de riscos naturais extremos, com vista a aumentar a resiliência em edifícios e obras de betão armado. Pretende-se também apresentar uma proposta de modelo que organiza um sistema de classificação de resiliência de edifícios.

Currently, due to the increasing complexity of new buildings and the urgency to promote their economic sustainability, the Architecture, Engineering, Construction and Operation (AECO) sector faces the challenge of managing all the necessary information to fulfil its basic requirements. For this information management (e.g. control, organization, structuring, storage), the importance of using standardized construction information classification systems (CICS) is emphasized. In parallel, the use of Building Information Modelling (BIM) methodology is increasingly essential. In addition, there is a global challenge to rationalize the use of natural resources in line with the United Nations (UN) Sustainable Development Goals. As the AECO sector is one of the most demanding in terms of the use of these resources, there is an urgent need to develop production models that involve the sharing, reuse, repair, renovation and recycling of existing materials and products, thus extending their life cycle. The Sustainability Enhanced Construction Classification System (SECClasS) Project presents a solution that unifies these challenges. It proposes to develop and implement a CICS optimized for sustainability, based on the principles of Circular Economy, aiming to reduce construction and demolition waste (CDW), through the use of digital tools that help and promote the careful selection and management of products with less environmental impact. This paper describes the assumptions for the development of a Portuguese CICS (in accordance with SECClasS Project), that adapts classification systems already established at an international level, such as: (i) UniClass2015 (United Kingdom); (ii) OmniClass (North America); (iii) CCS (Denmark); (iv) CoClass (Sweden); and (v) CCI (Estonia, Czech Republic, Norway, Denmark, Sweden and Finland). International standards, such as ISO 12006 and ISO 81346, as well as the Action Plan for the Circular Economy defined by the European Union in 2020 are also analysed. This research work aims to obtain a CICS that streamline decision-making processes in AECO sector, reducing negative environment impacts and promoting sustainability.

Currently, due to the increasing complexity of new buildings and the urgency to promote their economicsustainability, the Architecture, Engineering, Construction and Operation (AECO) sector faces the challenge of managing all the necessary information to fulfil its basic requirements. For this information management (e.g. control, organization, structuring, storage), the importance of using standardized construction information classification systems (CICS) is emphasized. In parallel, the use of Building Information Modelling (BIM) methodology is increasingly essential. In addition, there is a global challenge to rationalize the use of natural resources in line with the United Nations (UN) Sustainable Development Goals. As the AECO sector is one of the most demanding in terms of the use of these resources, there is an urgent need to develop production models that involve the sharing, reuse, repair,renovation and recycling of existing materials and products, thus extending their life cycle. The Sustainability Enhanced Construction Classification System (SECClasS) Project presents a solution that unifies these challenges. It proposes to develop and implement a CICS optimized for sustainability,based on the principles of Circular Economy, aiming to reduce construction and demolition waste (CDW), through the use of digital tools that help and promote the careful selection and management of products with less environmental impact. This paper describes the assumptions for the development of a Portuguese CICS (in accordance with SECClasS Project), that adapts classification systems already established at an international level, such as: (i) UniClass2015 (United Kingdom); (ii) OmniClass (North America); (iii) CCS (Denmark); (iv) CoClass (Sweden); and (v) CCI (Estonia, Czech Republic, Norway, Denmark, Sweden and Finland). International standards, such as ISO 12006 and ISO 81346, as well as the Action Plan for the Circular Economy defined by the European Union in 2020 are also analysed. This research work aims to obtain a CICS that streamline decision-making processes in AECO sector, reducing negative environment impacts and promoting sustainability.

Buildings with structural concrete elements associated to infill or resistant masonry walls, constructed, in their great majority, since the beginning of last century, have lately profited a considerable improvement of their durability characteristics, particularly to resist common climate actions. The climate change, and particularly the global warming, are expected to have impact on the durability and service life of these buildings, with premature degradation of materials and construction elements. In this paper, the evolution of construction characteristics of buildings with structural concrete elements associated to infill or resistant masonry walls is briefly analysed, particularly regarding heritage buildings, focusing on the constructive provisions that have been introduced, aiming the increase of its durability characteristics. Concerning the premature degradation of the materials and construction elements due to the impact of climate change, the main factors to be taken into account are presented/estimated. General criteria for selection of materials and components in maintenance and rehabilitation of these heritage buildings, particularly concerning the effects of climate change, are here analysed. Finally, in the context of monitoring the degradation effects of climate change on these heritage buildings, the potential application of non-destructive techniques is generally discussed, namely the use, along the service life, of ultrasound testing, infrared thermography and photogrammetry, for accessing the decrease of the durability conditions of the referred buildings, due to climate change.

Collaborative work requires mutual understanding and trust and a deeper level of standardized processes than what has become current practice in the Architecture, Engineering, Construction and Operation (AECO) sector, so that information is useful and made available in timely and consistent. The information requirements are a guarantee that the information passed between the different actors throughout the life cycle is coherent, representing the intended efficient way.This paper intends to be a step to overcome challenges, identified in AECO sector, related to the future maintenance management including the concepts of information transmission and digital transformation. A link between information management systems, such as BIM (considering the requirements of ISO 19650), and Construction information systems, such as ProNIC, is explored.

In buildings with reinforced concrete structure, it is observed that, in many cases, the cracking in facade masonry walls and internal walls is essentially related to deformations due to temperature variations (thermal deformations). In fact, thermal deformations can induce significant stresses in these building elements and cause appreciable cracking, the repair of which may incur high costs. Where the effect of temperature variations is presumed to be predominant, the detection of the respective cracking situations shall involve the identification, with high reliability, of the characteristic signs that clearly can be associated to the typical pattern of cracking due to thermal deformations. The purpose of this paper is to analyse, in heritage buildings, thermal deformations in masonry walls and their confining reinforce concrete elements. It also addresses the process of identification of this kind of cracking associated with the effect of temperature variations. In particular, the potential for using NDT techniques, namely ultrasound testing, infrared thermography and photogrammetry, in this process of identification, is here evaluated.

New challenges to the performance of buildings heritage have emerged from the environmental effects of climate changes. Climatic factors affect the performance of buildings. The recent changes in the climate have been more marked than previously documented. This tendency is expected to continue in the near future, despite the measures that have been taken to mitigate global warming. Thus, the predicted and significant impact of this climate change on buildings will enforce their necessary adaptation based on special measures to mitigate the adverse effects of climate change. This paper discusses structural and functional rehabilitation of heritage buildings with reinforced concrete structure, given the predictable effects of climate changes. The environmental impacts of climate change require a detailed analysis about the effective suitability of current performance requirements, particularly when the uncertain character of these environmental impacts is a major issue. The need for adjustment of performance requirements will be analysed from the perspective of structural and functional rehabilitation of buildings. This will address aspects such as mechanical strength and stability (especially in relation to the retrofitting of existing structures), fire safety, hygiene and health, thermal/acoustic insulation, lighting and sustainability.

Gradualmente, algumas das empresas do setor da Arquitetura, Engenharia, Construção e Operação (AECO) têm vindo a implementar o BIM (Building Information Modelling), adaptando a sua forma de trabalhar e tentando sistematizar procedimentos. O BIM assenta num conceito de conetividade de objetos paramétricos com diversas dimensões, evolutivos no tempo e manipulados de forma colaborativa pelos diversos agentes nas diferentes fases do ciclo de vida de um empreendimento. Desta forma é lícito afirmar que, a panóplia de variáveis e a complexidade das ligações, não permite descurar a forma como se faz a implementação de uma solução BIM. Assim, torna-se evidente que a implementação do BIM deve ser planeada, sendo que, para responder às necessidades do planeamento de um determinado projeto em BIM, têm vindo a ser desenvolvidos Planos de Execução BIM (BIM Execution Plan - BEP). Os BEP devem estar alinhados com cada fase do projeto e definem: i) os objetivos estratégicos, táticos e operacionais; ii) os modos de colaboração entre os diferentes intervenientes; iii) a partilha de informação; iv) as funções e responsabilidades dos intervenientes; v) o software a ser utilizado; vi) o Level of Development (LOD); vii) o Level of Information Needed; viii) os procedimentos de controlo de qualidade; ix) a composição de objetos e convenções de nomenclatura, para um determinado empreendimento e/ou fase de empreendimento de construção.A presente publicação aborda a maturidade BIM e as suas políticas de difusão, e tem como objetivo apresentar uma proposta específica de um BEP aplicado a gabinetes de projeto de estruturas. De facto, a formação dos projetistas para estas metodologias, assim como a realização de um BEP, é essencial para apoiar todos os colaboradores da empresa, e/ou externos, envolvidos num determinado projeto. A realização de um BEP permite sistematizar os processos envolvidos no projeto, aumentando o nível de maturidade BIM da organização.

N/A

The role of public transport in sustainable urban development is recognized and promoted to mitigate climate change and improve mobility. The railway infrastructure has specific constraints that lead to the need of maximizing of the availability of infrastructure, with high levels of safety and quality, associated with an optimized cost. Following EU decisions, it is urgent to carry studies to support investment projects in different areas. The use of methodologies based on cost-benefit analysis (CBA) contribute positively to support decisions. The expansion of light-rail transit (LRT) systems in recent decades is due, among numerous factors, the fact that they are non-polluting systems, benefiting the urban environment, as they are safe and reliable and, through channel segregation, guarantee fast urban routes, avoiding congestion. The LRT can be a fundamental tool in a movement to revalue the centers and may represent an important element for the urban regeneration. The analysis presented in the paper highlights the need to take advantage of the high transport capacity ensured by the railway service essentially in commuting to Lisbon in view of the existing quadruplication of the railway line between Póvoa and Lisbon, based in a cost-benefit analysis (CBA). The solution presented aims to promote the most sustainable mobility patterns

The recognition of the high costs of the vulnerabilities of cities and communities due to various types of disaster risks have helped build the business case for investments improving the quality and resilience of buildings and civil engineering works. This important issue has attracted the attention of several stakeholders, including engineering professionals from different fields, scientists, standardization bodies, investors and financial institutions, regulatory agencies, user groups of several, as well as administrative services at national and regional level. This research work discusses the application of a resilience rating system to show the impacts of capital investment in building refurbishment and renewal. It highlights aspects in building renovation programs that efficiently and quickly increase their resilience in face of extreme events. The work presented builds on previous discussions on ways to measure the resilience of built assets, namely based on a rating system composed by different dimensions, several indicators, and parameters. It covers not only the building's intrinsic qualities, but also its interdependence with the community, surroundings, and users in the post-disaster context.

The resilience of buildings and civil engineering infrastructures has increasingly attracted the attention of different stakeholders, including engineering professionals from different areas, scientists, standardization bodies, investors and financial institutions, regulatory agencies, different user groups, as well as national and regional administrative services. This interest has motivated the development of methods for classifying the resilience of built assets, to identify aspects that can be improved and establish investment priorities, to increase their resilience when facing extreme events or other types of risks. The paper presents contributions to improve a system for classifying the resilience of built assets organized in dimensions, indicators and parameters that cover not only the intrinsic characteristics of buildings, but also their exposure to natural and man-made hazards, with the community and with the users. The paper specifically focuses on the resilience of public treasury buildings elementary schools in the municipality of Lisbon, some of which have been object, throughout their life cycle, of different interventions carried out within the scope of different public investment programs.

The practical implementation of the performance-based building philosophy still depends on the resolution of inconsistencies of different natures, despite being a concept that has been under discussion for several decades. It highlights the difficulties in objectively measuring expectations on the

Transport infrastructures such as roads, railways and runways are under increased traffic loading and their rehabilitation has to be performed in an efficient way, structurally and financially. In this process, monitoring of structural and functional capacity of transport infrastructures using non-destructive tests is performed in a systematic way. It is important to take the advantages of these measurements in order to plan a future rehabilitation. In this paper, four case studies of Building Information Modelling applied to transport infrastructures are presented. In case of road and airport pavements, the integration of structural capacity in the modelling was studied. Regarding the railways, a construction of a transition zone was addressed, as well as its behaviour during the first three years after entering in service. For both roads and railways, rehabilitation of existing infrastructures was modelled using BIM. In this way, it is possible to obtain a model that has information regarding the structural condition resulting from the continuous inspections. The BIM, being a relatively recent and innovative methodology, it is an important tool, with great potential when applied to transport infrastructures study. The main troubleshooting and consideration reached so far are presented herein, identifying the advantages of this approach.

The Architecture, Engineering, Construction, and Operations (AECO) sector has innovated in the design and construction methods using new technologies, with emphasis on the Building Information Modeling (BIM) methodology. However, it is still necessary to explore how this methodology can be applied to rehabilitation, in general, and to functional rehabilitation. BIM has as its main advantage, the possibility of an accurate representation of the geometry of the elements, integrating the information in several dimensions. The use of digital models is very important, since it allows optimizing the visualization and detail of these elements and their constructive processes, being a collaborative methodology. The present work intends to frame the BIM theme in the building

The rehabilitation of buildings has been growing in the last few years, being one of the areas with greater investment by the public and private sectors. The challenge on the rehabilitation of buildings allows reducing the use of resources, trying to reduce the environmental impact and making the construction sector more efficient. The energy rehabilitation of buildings is an important aspect of building rehabilitation, assuming particular importance among this type of interventions, trying to integrate economical and rational measures. The adoption of BIM methodology is associated with project planning, cost or energy analysis of the construction and project deliveries of the building and constructed structures; as a result, nowadays there is a greater demand to adapt these tools in the early stages of existing building lifecycle. The emergence of BIM software that can combine the modeling with the energy assessments allows the designer to make more conscious, accurate and informed decisions about the projects under development. The main objective of the research study developed is to understand how the use of digital tools allows a more efficient approach in the energetic rehabilitation of a building. In this way, and considering different rehabilitation solutions, it is possible to perform an analysis of alternatives, comparing them with the base solution and thus being able to understand which are the energetic gains, as well as the optimal solution. The results will be presented making possible their comparison with real measurements and the standards reference parameters for thermal performance. The possibility of editing the thermal properties of the building materials considered allows the realization of various simulations with several combinations of possible improvements. The results obtained can be an integrant part of a cost

The use of Building Information Modelling (BIM) is growing in the Architecture, Engineering, Construction and Operation (AECO) sector. BIM is an innovative methodology that enables a new approach to construction information management, based on the design of a virtual information model, and which presupposes a new paradigm in the way information exchange processes are treated among the various stakeholders throughout the asset

Over the last few decades, the architecture, engineering, construction and operation (AECO) sector did not follow the technological evolution observed in other sectors. Although there have been technological innovations, which include BIM and the Protocol for Standardization of Technical Construction Information (ProNIC

Building Information Modeling (BIM) stands out as a vector of innovation encouraging a revolution in modern Civil Engineering. This methodology congregates process, politics, and technology enabling a collaborative construction in virtual space. BIM implementation in buildings and infrastructures has been advantageous when compared to traditional process, allowing error and rework reductions as well as improving costs and time previsions. One of BIM

Nesta Nota Técnica aborda-se o tema das flechas admissíveis de elementos de betão armado de suporte de paredes de alvenaria. Analisam-se os aspetos característicos do comportamento das paredes de alvenaria e dos seus elementos de apoio, bem como algumas questões relacionadas com a fendilhação de paredes de alvenaria devida essencialmente a situações de deformabilidade excessiva dos seus elementos. São feitas considerações sobre a limitação das flechas de suporte e analisadas algumas das recomendações constantes da regulamentação nacional e internacional.

No presente estudo faz-se uma abordagem sobre o tema do movimento das fundações de edifícios, dando especial destaque aos edifícios que utilizam alvenarias no preenchimento de malhas estruturais de paredes e na execução de divisórias interiores. Referem-se as conclusões de estudos realizados por diversos autores envolvendo aspetos relacionados com a segurança e avaliação dos assentamentos admissíveis das construções. No final, descrevem-se modelos de análise do comportamento dos edifícios e a sua aplicação na determinação dos assentamentos admissíveis em edifícios com diferentes soluções construtivas.

No presente estudo faz-se uma abordagem geral sobre a problemática dos pavimentos térreos em edifícios industriais, procurando-se desenvolver aspetos essenciais sobre o solo de fundação e sua interação com o pavimento, dimensionamento e processos construtivos. O estudo pretende restringir-se fundamentalmente a pavimentos constituídos por lajes de betão fracamente armadas e localizadas no interior de edifícios industriais, embora se possa generalizar a outras situações.

O que se procura realizar no presente estudo/livro é uma reflexão prática e sistematizada sobre um extenso quadro de qualificação residencial, que harmonize sistematicamente e na medida do que se considera ser possível, a perspetiva da satisfação dos habitantes com os aspetos associados à qualificação da própria conceção arquitetónica, considerando nesta os respetivos aspetos de desenho urbano. Visam-se, assim, neste livro ideias e caminhos de investigação sobre a relação profunda que existe entre a qualidade da Habitação

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A