Repositório Institucional da Universidade Federal do Amapá - RIUNIFAP

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O RIUNIFAP é uma iniciativa para preservação e disseminação da Produção Intelectual da UNIFAP, compartilhando o Conhecimento produzido na Universidade com a Comunidade.

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Últimas publicações

Análise dos benefícios da inserção de um religador na subestação do sistema de distribuição de energia elétrica da avenida FAB, localizada no centro de Macapá
(UNIFAP - Universidade Federal do Amapá, 2019-05-29) COSTA, Ailton Macedo; ANDRADE, Davi Gonçalves
This work analyzes the feasibility of installing a power substator that feeds the FAB Avenue Distribution located in the central district of the city of Macapá. The study aims to show the economic and practical advantages. The recloser can also serve a range of operating advantages when compared to circuit breakers. This study has encouraged social resolutions such as an improvement in energy quality due to a decrease in false stays caused by transient shortages. With this, the recloser will enable all temporary problems, causing the energy to be restored quickly. The ability to solve a transient situation, there is a need to move through a problem to reduce efficiency, which increases the time of absence of energy available to residential, commercial, industrial consumers
Uma abordagem conceitual e prática na política de prevenção e combate à incêndio no Estado do Amapá com uma aplicação demonstrativa em uma unidade ambulatorial no Campus Marco Zero – UNIFAP
(UNIFAP - Universidade Federal do Amapá, 2019) ALMEIDA, Frank César de Andrade; RAMBO, Luis Henrique; SANCHES, Sandro Barrozo; http://lattes.cnpq.br/6595351726056686; http://lattes.cnpq.br/0890417787664472; https://orcid.org/0009-0000-4692-3220
The development of human civilization is linked to the process of industrialization, which has also brought large urban concentrations and consequently high risks of fire occurrence, which according to vulnerability of the environment, resulting in enormous proportions of damages, both material and human. It arises the concern with actions that avoid or combat disasters caused by fire. The objective of this paper is to present concepts and analyze legal regulations relevant to measures and actions that seek fire protection policies. In order to do so, this paper brings concepts about fire dynamics regarding their definitions, elements, propagation, and methods of extinction and control. It highlights some historical events, at international, national and local levels that were decisive for the increase in the concern for fires and the search for solutions capable of avoiding both human losses and enormous material losses. It makes a theoretical and conceptual approach to the current local legislation and a practical applicability of its prescriptions in regard to the framework of the minimum measures of Fire and Panic Protection Systems.
Uso de estabilizante químico de solo: estudo de caso em residencial em Macapá
(UNIFAP - Universidade Federal do Amapá, 2019) PINHEIRO, Jennifer dos Santos; NUNES, Regis Brito; http://lattes.cnpq.br/5252360529673878; https://orcid.org/0000-0003-3894-7139
The objective of this work was to analyze the physical and mechanical behavior of the soil, located in Residencial Irmãos Platon, in Macapá, by adding the chemical additive Oxnix for functional use as a base of pavement. Performed through tests in compliance with the current Standard, and following the guidelines of the manufacturer of the product. The soil classification and the necessary dosage, was studied, joining the necessary characteristics and techniques for the soil in natura and for the additived. After several tests, such as granulometry, proctor, expansion, penetration and CBR (California Bearing Ratio), the soil was classified as a clay silt with less than 5% clay, which did not result in a good stabilization with the chemical additive, which requires a minimum of 30% of it for stabilization to be adequate, so the ISC graph pointed a larger curve (with more resistance) to the natural soil and a lower result of the soil added, concluding that the chemical stabilization with the Oxnix product had no effect on the studied soil.
Análise comparativa entre métodos de cálculos de fundações do tipo sapata de projetos já executados na cidade de Macapá/AP
(UNIFAP - Universidade Federal do Amapá, 2019) SILVA, Caio Lobato; RAMBO, Luis Henrique; http://lattes.cnpq.br/0890417787664472; https://orcid.org/0009-0000-4692-3220
The present Course Conclusion Paper entitled “COMPARATIVE ANALYSIS BETWEEN SHAPE CALCULATION METHODS OF PROJECTS ALREADY PERFORMED IN THE CITY OF MACAPÁ / AP”, thematized the structural area of Civil Engineering, more specifically on the foundation of the shoe type. It had as its general objective: to verify the quality of the projects of shallow foundations of shoe type executed in the city of Macapá / AP. And as specific objectives: To present the differences between methods of calculation of foundations in shoes; Develop a comparison with the projects already executed in the city of Macapá; Provide information on foundation projects to contribute to engineers working in this area; Stimulate the search for knowledge, aiming at the advancement in civil construction and especially minimize the errors in the foundation design phase; Show the importance of a competent professional to develop foundation projects. Check the disparity between the results to obtain the most advantageous and efficient proposal. Methodologically, it was a case study in which information was collected on four projects of shallow shoe foundations executed in the city of Macapá / Ap. aiming to demonstrate the difference in the final result of the dimensioning of a shoe by the load capacity, besides making an estimate of the cost and generating tables and graphs comparing the obtained results. To make the comparison, the most loaded shoes of each project were chosen. The comparison was made between the semiempirical and statistical calculation methods and the dimensions established in the original project. Among the results, the study revealed that some projects executed in the city are larger than necessary which generates more waste and costly projects.
Patologias em contenções: estudo de caso na orla do Perpétuo Socorro na cidade de Macapá - AP
(UNIFAP - Universidade Federal do Amapá, 2019-12-03) ALMEIDA, Daianne; RAMBO, Luis Henrique; OLIVEIRA, Adenilson Costa; http://lattes.cnpq.br/2745252559386566; https://orcid.org/0009-0001-9692-0279; http://lattes.cnpq.br/0890417787664472; https://orcid.org/0009-0000-4692-3220
A retaining structure is subject to several aggressive factors: human deterioration, environment actions where it is retained, materials actions and their interaction. The knowledge of these factors is mandatory for the elaboration of implementation studies, projects, monitoring and maintenance of such structures. When conception and execution are performed with quality, and nevertheless the structure presents pathological problems, the failures may be caused by improper use of the structure or inefficiency of the maintenance program. It is the field of Pathology of Structures, identifying pathological causes, indicating the adoption of emergency measures - when there are risks to people, the environment and the structure itself - to diagnose which techniques will be employed to eliminate or minimize anomalies and recommend the possibility of rehabilitation, reinforcement or demolition of the structure. This paper studies the retaining wall built on the waterfront of the Perpétuo Socorro neighborhood in the city of Macapá, which has had anomalies since 2012, and in 2019, is in a state of collapse. Given the complexity of the existing pathologies in the wall, a preliminary inspection was performed to investigate the nonconformities and pathological factors, which corroborated the partial ruin of the retaining structure. A checklist was used based on the literature of dams inspection and reinforced concrete structures, measuring the degree of risk and intensity of anomalies using the GUT method. The results of the prioritization demonstrate that the risk control measures are urgent and necessary. The maximum score (GUT = 1000) indicates that the priorities of the actions are: access restriction of people to the risk area and stabilization of the displacements to avoid the expansion of dangerous areas.