Navegando por Assunto "Engenharia civil"

Agora exibindo 1 - 7 de 7

Acesso aberto (Open Access)
Análise da manutenção de pavimentos urbanos: uma proposta de implantação de um sistema de gerência de pavimentos
(Universidade Federal do Pará, 2017-09-19) BARRA, Renata Brabo Mascarenhas; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058; MACEDO, Alcebíades Negrão; http://lattes.cnpq.br/8313864897400179
The absence of urban planning and management is the factor that most contributes to driving municipalities to a precarious stage of their infrastructure. The management of the maintenance of the urban pavements is important for a good management of the public services offered by a municipal body, being a great challenge to its managers. The development of an internal management system better incorporates the needs of the agency responsible for interventions in the road network, besides, it aims to generate economy and improve the quality of the services provided. The urban road network is one of the main components of the municipal infrastructure system, and yet the concern of public managers with the systematization of procedures for the management of this road system is small. In view of the above, this research has the objective of proposing the implementation of an Urban Pavement Management System to a public Road Works Department. As a research strategy, the case study was adopted, since a field research was carried out by means of the application of a structured questionnaire, analyzing in depth the research focus. In addition to the bibliographic review stage, the study comprised the execution of three phases, the first one referring to the presentation of the idea (motivation) and the initial diagnosis of the focus of the research, the second phase corresponded to the software development stage the elaboration Of the Urban Pavement Management System - SGPU and the third phase corresponded to the implementation and use of the developed system. The main results are: the creation of a computational tool capable of generating an inventory of the municipal road network, generating support reports for decision making considering the type of existing pavement, type of last maintenance done on the road, Services per neighborhood of the analyzed region, the condition of the subgrade and its drainage system, the type of roadway covering and its Pavement Condition Index. These reports provide senior management with the foundation needed to plan the short, medium and long term actions correctly, increasing efficiency and assertiveness in meeting the demands. Finally, it was concluded that the developed system met the general objective of the research, generating in a satisfactory way the inventory of the routes of the analyzed region, aggregating information for management decision-making in the organ, in addition, this research becomes important for the environment For its innovative character in the analyzed region, consolidating itself as one of the references regarding the management of maintenance of urban pavements in public agencies.
Acesso aberto (Open Access)
Análise do desenvolvimento de competências gerenciais na construção civil através do modelo da Aprendizagem Baseada em Problemas adaptado ao contexto organizacional
(2014-03) MARTINS, Vitor William Batista; NEVES, Renato Martins das; MACÊDO, Alcebíades Negrão
Continuous changes in the civil engineering scenario, and consequently in construction production management require engineers with a different profile, resulting in the need of new competences, related to innovation, customer focus, planning and control, quality management systems, sustainability and a humanistic vision. The main goal of this article is to identify the competences developed in a construction company through the implementation of problem-based learning adapted to the organizational context. The strategy applied in this study was action research, in which researchers work with practitioners to improve the way they understand and solve problems. The results obtained involve the development of competences related to the organizational context, individual, collective and organizational learning process, pointing out problems and possible managerial solutions in the company. By developing managerial competences, a sustainable and humanistic vision, with client focus was stimulated, besides improvements in the quality management system. Some problems were identified in the organizational management system, making evident the need to create an environment that facilitates information exchange among the different sectors of the company.
Acesso aberto (Open Access)
Aprendizagem Baseada em Problemas (ABP): identificação das dificuldades docentes para a utilização do método no curso de Engenharia Civil.
(Universidade Federal do Pará, 2019-08-28) SILVA, Sidnei Silva e; MACEDO, Alcebíades Negrão; http://lattes.cnpq.br/8313864897400179; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
The technical training of engineering teachers brings with it difficulty in mediating in an educational process way of building knowledge, which negatively influences student training. To minimize such effects, we used the Problem Based Learning (PBL) as an alternative. Therefore, this paper aims to present the difficulties identified in the teacher's perception for the use of the method in the civil engineering course through the construction of an implementation proposal in two disciplines in a public university of Marabá. The research is characterized as action research and was developed in eleven cycles proposed in the disciplines. These problems were built based on the contents offered for these subjects and a technical visit to a teaching institution that uses PBL as a curricular basis. Besides, we used observations of similar studies developed on the use of the PBL method. The results demonstrate the feasibility of using the technique, shown by the good acceptance of both the teacher and the students involved in the research. Besides that, we observed which the students have gotten excellent performance at the end of each discipline. However, some difficulties were found: the cultural elements, the curriculum, and the lack of some teaching skills as factors that can hinder the use of the PBL either by the student or by the teacher himself. From these results we concluded that the studies demonstrate the feasibility of using the method, however, essential elements present in the educational process would need to be enhanced so that the PBL could be fully used within the institution, such as teacher training, or curriculum-related issues could contribute to the development of the topic addressed in this study.
Acesso aberto (Open Access)
A aprendizagem baseada em problemas (ABP): uma aplicação na disciplina “Gestão empresarial” do curso de Engenharia Civil
(Universidade Federal do Pará, 2011-10-25) MACAMBIRA, Paulo Marcelo Fecury; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
The methodology of Problem-based Learning or PBL, unlike conventional methods of teaching is an approach which uses problems to close the gap between theory and practice in the learning process. In addition to encouraging the construction of knowledge, proposes to contribute to the development of some non-technical professional attributes considered important for the practice of engineering in a society in constant and rapid changes. This work, an action research, experienced and sought to analyze the efficiency of the method during its application in the Business Management course, taught to the students at the penultimate and last semester of undergraduate courses in Civil Engineering. Data for analysis were collected through participant teacher / tutor´s observations and through evaluation reports, in which students were asked about PBL, its advantages and disadvantages and their potential to achieve those goals. In the three case studies, although applied to different classes, show through the students´ reports and through a continuous assessment that the learning occurred as well as the knowledge and the development of some skills and attitudes targeted in the discipline, such as: research capacity, entrepreneurship development, methodological innovation and searching for knowledge. In general, students reacted positively to the BPL. This suggests that its applicability is possible in the contexts studied. The methodology also proved to be a useful tool for professional development for teacher regarding to his practice.
Acesso aberto (Open Access)
Caracterização dos agregados da região do baixo Amazonas: elaboração de traços para a produção de blocos de concreto estrutural
(Universidade Federal do Pará, 2015-07-03) NEVES, Paulo Henrique Lobo; MACEDO, Alcebíades Negrão; http://lattes.cnpq.br/8313864897400179
With the growing demand for aggregates for the construction industry in the city of Santarém and surrounding cities, and with the emergence of construction processes still little known in the region, such as the use of concrete blocks, the need to develop an experimental research for verification arises insusceptible of the characteristics of aggregates to be used in order to study the feasibility of applying them to the production of concrete blocks with structural function, class B – 4,0MPa ≤ fbk <8.00 MPa. A complete characterization, identification of exploration areas with their distances to block production sites in the city Santarém was approached. With the results were developed traits with the dry mixture of aggregates depending on their characteristics seeking to optimize and better compactness thereof, to more economic traits and which give the final product a better finish and resistance. The experiment was developed from a standard feature used in the city's factories and which served as a benchmark for the other elaborate experimental features, complying with the steps below. In the first stage was carried out to identify the aggregate producing sources in the city of Santarém and surrounding areas. Following a second stage, held expeditions collecting and packaging the samples. For the latest steps were carried out the characterization tests being: Kids grain size and coarse aggregates, mass determination and specifies apparent, fine materials and abrasion Los Angeles. Later traces were designed with optimized framework in the ideal particle size range, with the production of concrete blocks with structural function of families 14x29 and 14x39. In the last step tests were performed to verify the dimensional analysis, absorption index and resistance to compression individual blocks. Prior knowledge of the aggregates and framed adequate mixing in the ideal particle size range provided the reduction in the consumption of cement and favored the final product quality improving all its performance parameters.
Acesso aberto (Open Access)
Desempenho acústico das edificações segundo a NBR 15575 (ABNT, 2013): desempenho das vedações e validação dos requisitos normativos com base na opinião dos usuários
(Universidade Federal do Pará, 2016-03-18) SANTANA, Wylliam Bessa; PICANÇO, Marcelo de Souza; http://lattes.cnpq.br/4535052395600357
With the growth of large urban centers in Brazil, the population density and the need for housing led to high demand for semi-detached homes and apartment houses with numerous apartments, however, with the passage of time they became the result of user complaints in consequence of the low performance of the buildings. The normalization of the performance of the buildings was necessary. Several international standards address the issue, but only in 2013 was published the Brazilian standard of buildings performance NBR 15575 (ABNT, 2013), stipulating among other things, requirements for acoustic performance of internal and external walls, and slabs about the noise impact and air. However, there are some questions, such as: does the current construction typology meet these performance acoustic criteria? Are these criteria suitable? Among to answer these questions, field tests and questionnaires were performed with residents. Among the seals whose acoustic performance is required, the results show the inner walls are more distant to meet these criteria, and the external meet with difficulty, even as perceived by users. About the regulatory requirements for acoustic performance, are significant the annoyed levels generated by impact loads on slabs, highlighting the low accuracy, and even more worrying that the latter is the fact in not require acoustic performance criteria regarding the impact noise between walls, highlighted by the vast majority of respondents as the main source of noise.
Acesso aberto (Open Access)
Pesquisas acadêmicas sobre gestão da qualidade na construção civil brasileira: uma revisão sistemática
(Universidade Federal do Pará, 2013-08-27) NAGATA, Celso Shigueru; LIMA, Adalberto da Cruz; http://lattes.cnpq.br/7803369097132222
The general objective of this work was to map the academic research undertaken in postgraduate programs recommended or recognized by CAPES on the theme "quality management" in the context of civil works construction companies in Brazil, in the period from January 2003 to June 2012. This work was motivated by the necessity to know the latest developments on quality management in the Brazilian construction industry. The methodology called systematic review was used for the selection of papers, resulting in a set of thirteen (13) works and, after collection, content analysis was performed. The picture obtained as a result of the analysis revealed that the research about the topic were developed almost exclusively in programs of Southeastern Brazil (being only one study from the South), only using qualitative approaches such as case studies and action research and generating new knowledge as the main practical contributions in the form of guidelines or recommendations and models for specific situations. Further contributions include understanding the effects that changes in the internal and external environments cause to the construction companies The mapping also showed that the amount of research conducted evolves almost in a stable way with an average of 1.3 works per year. Finally, several research gaps and opportunities for further research on the topic analyzed were listed.