Mestrado em Geotecnia, Estruturas e Construção Civil (EECA)
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Navegando Mestrado em Geotecnia, Estruturas e Construção Civil (EECA) por Por Orientador "Amaral, Tatiana Gondim do"
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Item LCAT: ferramenta de avaliação da implementação da construção enxuta(Universidade Federal de Goiás, 2017-06-21) Camargo Filho, Carlos Augusto Bouhid de; Amaral, Tatiana Gondim do; http://lattes.cnpq.br/7298757233386815; Amaral, Tatiana Gondim do; Silva, Frederico Martins Alves da; Barros Neto, José de PaulaThe use of tools to analyze the implementation and use of practices and principles of lean construction is extremely necessary for them to be successful and bring the expected results. Therefore, the tool which is going to be used must be adequate and capable of measuring in the best possible way the real state of the construction company against lean philosophy. This research's objective is to develop a tool to evaluate the degree of implementation of the lean construction in building companies. The LCAT (Lean Construction Assessment Tool) has been developed based on other tools previously proposed with the aim of supply the deficiencies presented by them, mainly the absence of statistical treatment and in the fidelity of the results. Using multivariate data analysis techniques, such as hierarchical group analysis, form revisions were performed, which, according to the comparative tests executed, increased their level of replication and applicability. The evaluation form was analyzed by experts, who classified the items as their importance, complexity and time of implementation. The Fuzzy Inference System was utilized in order to reduce the subjectivity and interpretation bias of the evaluator, which generated closer results between two different applicators to the same object of study. As a secondary result, the participating companies of the applications were evaluated towards the implementation of the lean construction. It was noticed that the companies, for the most part, still do not apply lean construction concepts and tools, evidences were found only of the application practices that interfaced with other areas of management, such as quality and planning.Item Desenvolvimento técnico e avaliação de custo e benefício do sistema construtivo de painéis sanduíche, com núcleo de garrafas PET, moldados no local(Universidade Federal de Goiás, 2016-01-28) Fernandes, Georgeo Dias; Araújo, Daniel de Lima; http://lattes.cnpq.br/8801080897723883; Amaral, Tatiana Gondim do; http://lattes.cnpq.br/7298757233386815; Amaral, Tatiana Gondim do; Cascudo, Oswaldo; Barros, Mercia Maria S. Bottura deTraditional construction methods are questioned, because of low productivity, waste, rework, low standardization, among other things. Because of these problems and taking into account environmental aspects, new building systems that make use of reusable or recyclable materials from other industries are analyzed to verify its efficiency in technical and economic level. In this context, the aim of the dissertation is to describe the technical development and assess costs and benefits of the constructive system sandwich panels, molded on site, which reuses bottles of polyethylene terephthalate (PET) to make up the core of the walls and slabs. Concerning the technical development was described experiments and tests carried out for the conformation of the construction system, with the configuration of its characteristics and peculiarities, discussed the results of the tests performed, including the early to define the structural safety of the walls and slabs together with the presentation of the theoretical model calculation and performance evaluation for the validation. In the economic aspect, there was a comparison between the traditional construction system and the studied system. The cost direct was examined and observed the benefits with the help of value attributes expected to prefabricated options construction, drawn by Cook (2013), namely: direct costs (material and labor), time (schedule), design flexibility, work time management, quality, delivery and conference in work, subcontractors activities in work, work safety, exercise stress testing, health, environmental impact, LEED certification, rubble and dispensing, public relations, marketing, maintenance (life cycle). With the help of estimators engineers, through interviews, the steps we investigated, activities, productivity and resources needed to execute a project in the traditional building system, building system in masonry traditional system and building system analyzed. Was elaborated cost composition of spreadsheets and productivity for hypothetical situations of conventional and innovative construction system of sealing walls with slabs of residential buildings and walls and structural slabs works until two floors. The mapping process was designed, in which to extract the consideration of potential benefits or otherwise of the building system. Technical descriptions highlight the possibility of constructive feasibility of sandwich panels, with core of PET bottles, molded on site. And the evaluation of costs and benefits demonstrates its value, not so much due to the direct cost, but in terms of building system management benefits.Item Indicadores de sustentabilidade ambiental na etapa de execução de edificações multipavimentos(Universidade Federal de Goiás, 2013-09-20) Silva, Camilla Pompêo de Camargo e; Hora, Karla Emmanuela Ribeiro; Amaral, Tatiana Gondim do; http://lattes.cnpq.br/7298757233386815; Amaral, Tatiana Gondim do; Hora, Karla Emmanuela Ribeiro; Cardoso, Francisco Ferreira; Carasek, HelenaConcern for the future of the planet is present in everyday society, since issues are common in current newspapers and are part of discussions on social media and academics, leading to a restructuring in various spheres of society. Since the destruction of the environment continues to be a threat to contemporary life, different actors such as governments, consumers, investors and associations see prompting, encouraging and pushing the construction sector to incorporate sustainable practices into their activities . The tendency to regard the environment is already present not only by laws and regulations to be followed, but the scarcity of resources, which requires better control and rational use of materials. Therefore, there is the study of the reduction of the negative impacts of the construction phase of projects, to the extent that the construction industry, as well as a large consumer of natural resources, is a source of many negative impacts to the environment. In this sense, this research aims to propose and assess the use of indicators of environmental sustainability in residential buildings in the execution phase of the work, aiming to guide and measure the incorporation of sustainable practices for the construction industry in Goiás. The research, with exploratory and approaches both qualitative and quantitative, was developed through theoretical studies, involving national and international literature review, as well as action research in a construction company that has five certifications Goiás, these being ISO 9001 : 2008 System Quality Management, ISO 16001 : 2004 Management System Social Responsibility, ISO 14001 : 2004 Environmental Management System, OHSAS 18001 : 2007 System Management of Health and Safety at Work and the Brazilian Program for Quality and Productivity Habitat - PBQP - H. As main results we present the design, implementation and use of the system of environmental sustainability indicators aimed at the application stage ventures through a notebook of indicators and application examples.