http://repositorio.ufc.br/handle/riufc/24016 2026-04-06T00:03:37Z http://repositorio.ufc.br/handle/riufc/84862 Título: Aplicação da metodologia BIM para projeto e orçamentação de obra de reforma em escola pública de ensino Autor(es): Bezerra, Marcus Vinícius Pereira Abstract: In the Brazilian context, the inefficient management of public renovation works compromises educational infrastructure. These projects, marked by successive change orders and work stoppages, hinder the provision of adequate school facilities. Building Information Modeling (BIM) represents an innovative approach in the construction sector. This methodology provides greater project accuracy and reduces the occurrence of contractual amendments and budget overruns. In this context, this study aims to develop BIM modeling and cost estimation for the renovation projects of a public school within the public education system. Based on the existing architectural CAD drawings and an on-site survey, BIM models were developed for the architectural, electrical, hydraulic, sanitary, and structural disciplines. From the BIM models, quantity takeoffs were extracted and used for cost estimation using the Seobra® software. The results reaffirm the potential of the BIM methodology for quantity extraction and cost estimation, supporting the delivery of efficient and functional projects. This application highlights the effectiveness of BIM tools, resulting in coordinated and efficient project delivery, as well as accuracy in generating the total construction cost estimate. Tipo: TCC 2026-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/84730 Título: Desempenho mecânico de uma mistura composta por solo e cinza têxtil para fins de uso na pavimentação Autor(es): Oliveira, Rodolfo Moredisson Silva de Abstract: Industrial solid waste, especially that generated by the textile industry, represents a serious environmental problem due to its high volume and inadequate final disposal, which often occurs through landfilling. This accumulation negatively impacts the environment and wastes a material that could be reused in engineering applications. In this context, it becomes necessary to seek alternatives for the reuse of such waste, combining sustainability with technical efficiency. At the same time, the increasing demand for materials used in pavement construction, together with the scarcity of high-quality natural resources near construction sites, has encouraged the search for technical and environmentally sustainable solutions. Within this framework, this research aimed to analyze the technical feasibility of using a soil–textile ash mixture as an alternative material for pavement layers by evaluating its physical, chemical, and mechanical properties when incorporated into sandy soil. The ash used originated from combustion in ceramic kilns at Cerâmica do Liro in Russas, Ceará, Brazil, while the soil was collected from a rural road in the same municipality. The methodology included the application of the Modified Andreasen particle packing model in order to optimize the granulometric curve of the mixture, in addition to laboratory tests for characterization and performance evaluation. Different waste incorporation contents were also tested, and the method was used to determine the optimum content. Hygroscopic moisture, Atterberg limits, particle size distribution by sieving and sedimentation, specific gravity of grains, compaction, and California Bearing Ratio (CBR) tests were performed. The proposed optimized mixture consisted of 70% sandy soil and 30% textile ash, a proportion defined based on the theoretical particle packing curve. The results indicated that both the soil and the ash exhibited non-plastic behavior, low hygroscopic moisture content, and were classified as silty sand (SM) according to the Unified Soil Classification System (USCS). The specific gravity of the grains of the mixture was 2,720 kg/m3, a value considered satisfactory for geotechnical applications. In the compaction tests, the soil–ash mixture presented a maximum dry unit weight of 19.14 kN/m3 and an optimum moisture content of 8.60%, demonstrating good compactability with low moisture content. The CBR values of the samples ranged from 46% to 83%, all exceeding the minimum requirement established by DNIT standards (≥ 20%) for subbase layers. The expansion by immersion ranged from 0.0% to 0.2%, indicating volumetric stability. Therefore, it is concluded that the soil–ash mixture, particularly at the proportion of 30% ash, represents a technically and environmentally suitable alternative, promoting the reuse of industrial waste, contributing to the circular economy, and reducing environmental impacts associated with the improper disposal of textile ash. Tipo: TCC 2026-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/84694 Título: Análise do comportamento mêcanico de um solo estabilizado com cimento e reforçado com fibra de coco para fins de pavimentação Autor(es): Lima, Jocássia Maria de Oliveira de Abstract: Soils available in local borrow pits do not always present geotechnical characteristics compatible with the structural requirements of pavement layers, making it necessary to adopt stabilization and reinforcement techniques. Cement stabilization is widely used in this context; however, it may result in materials with brittle behavior and high susceptibility to cracking. As an alternative, the incorporation of natural fibers plays the role of structural reinforcement in these mixtures, while also promoting the reuse of residues. In this context, this study evaluated the mechanical behavior of soil mixtures stabilized with cement contents of 5%, 7%, and 9%, combined with the incorporation of coconut fiber at contents of 0.25%, 0.75%, and 1%, with a fixed length of 25 mm. For comparative purposes, natural soil, soil–cement, and soil–fiber mixtures were also analyzed. The experimental program comprised geotechnical characterization of the soil, compaction tests, and mechanical evaluation through Unconfined Compressive Strength (UCS), Indirect Tensile Strength (ITS), California Bearing Ratio (CBR), and Resilient Modulus (RM) tests. Based on the experimental data, mechanistic–empirical pavement design was performed using the MeDiNa software. The results showed that soil– cement mixtures without reinforcement did not reach the minimum UCS value of 2.1 MPa required by standards for application as base layers, whereas the incorporation of coconut fiber promoted strength gains sufficient to meet this requirement, in addition to modifying the failure mode, resulting in a more ductile structural behavior. Among the compositions evaluated, the mixture containing 5% cement and 1% fiber presented the best balance between mechanical performance and material consumption. The mechanistic–empirical design results indicated that soil–cement–fiber mixtures meet the performance criteria for different traffic levels, including higher traffic scenarios, provided that structural layer thicknesses compatible with design requirements are adopted. The potential of this composite material for application in pavement base layers was evidenced, while soil–fiber mixtures proved suitable for subbase layers, highlighting the technical feasibility of the solutions, reduced binder consumption, and environmentally appropriate destination of the residue Tipo: TCC 2026-01-01T00:00:00Z http://repositorio.ufc.br/handle/riufc/84670 Título: Estudo numérico de viga mista à flexão modelado com conectores de cisalhamento treliçado sólido e linear Autor(es): Dias, Nicolas Stênio Freire Abstract: In recent decades, civil construction has advanced significantly, driven by the development of new technologies in the modern world. In this context, concern for sustainable practices has become increasingly prominent, as studies indicate the need to reduce the consumption of natural resources, whose scarcity has become ever more evident. Accordingly, the adoption of more efficient structural construction systems stands out, among which steel–concrete composite structures deserve special attention. This type of structure is formed by the combination of reinforced concrete and structural steel, which reduces the use of natural resources, generates less atmospheric pollution, requires lower material consumption, and produces fewer urban solid wastes, enabling lighter, faster, and more sustainable construction. In this context, the concept of shear connectors also emerges, which are mechanical devices whose function is to join structural elements so that they work together compositely. Numerical studies of steel–concrete composite beams are essential to more accurately understand their structural behavior. Thus, the choice of the geometry of structural elements directly influences the computational cost, since more complex models require a greater number of finite elements, degrees of freedom, and processing time. Therefore, this study aims to validate two numerical models of a proposed VCT-01 composite beam, experimentally investigated by Lima (2021), as well as to compare the computational cost and the influence on the results when the numerical model is validated using a truss-type shear connector modeled as a 3D element and as a linear element. The obtained results were validated according to the experimental test conducted by Lima (2021) and demonstrated that the model with a linear connector showed a significant reduction in computational cost and processing time, while maintaining good numerical accuracy when compared to the load (kN) versus displacement (mm) curve. This indicates that the linear element model achieved a processing time reduction of 96.15%, although it presented an error of 8.36% in the ultimate load, whereas the model with a 3D connector showed an error of 2.98% Tipo: TCC 2026-01-01T00:00:00Z