https://repositorio.ufpb.br/jspui/handle/123456789/11131 2026-03-12T04:37:32Z https://repositorio.ufpb.br/jspui/handle/123456789/37802 Título: Análise da influência da densidade amostral na interpolação batimétrica por Krigagem: estudo de caso no Açude Pacatuba Autor(es): Amorim, Thomás Vinícius Silva de Orientador: Melo, Davi de Carvalho Diniz Abstract: Efficient water resource management is a constant challenge, particularly in regions with high rainfall variability, where water availability heavily depends on surface reservoir storage. Effective management requires precise knowledge of a reservoir's actual capacity and submerged topography. Bathymetric surveys provide this essential data, yet their execution is time-consuming, infrastructure-intensive, and costly, raising a critical question: what is the necessary sample density to achieve reliable volumetric calculations while avoiding both under-sampling and excessive effort? This study analyzes the influence of sample density on the accuracy of reservoir volume estimates. Data were acquired using a single-beam echo sounder and interpolated via ordinary kriging in a Python environment to identify the optimal balance between operational cost and estimation accuracy. The Pacatuba Reservoir (Sapé-PB, Brazil) was used as a case study, with 12,034 depth points collected on October 30-31, 2024. Depth data were interpolated using different variogram models (spherical, exponential, Gaussian, and linear) and spatial resolutions (20 m and 10 m), with each configuration's performance evaluated through cross-validation. The exponential variogram proved most suitable, demonstrating the lowest error and best fit (RMSE = 0.069 m; MAE = 0.037 m; R² ≈ 0.999). A 10 m resolution was established as standard, as further reductions did not yield significant changes in estimated volume. To assess the impact of sample density, 100 independent interpolations were performed for each percentage of data points used (2.5% to 80%), enabling the calculation of means, standard deviations, and coefficients of variation. Results indicated that densities ≤ 5% produce inconsistent volumes with high dispersion. From 12.5% of the points, reliable estimates were achieved (RMSE = 0.31 m; CV = 3.8%). Using 25% of the points, variability became negligible (RMSE = 0.01 m; CV = 0.3%), and volumes matched the reference value. Thus, the range of 12.5% to 25% represents the optimal trade-off between sampling cost and volumetric precision, confirming the robustness of the methodology. Editor: Universidade Federal da Paraíba Tipo: TCC 2025-09-29T00:00:00Z https://repositorio.ufpb.br/jspui/handle/123456789/37801 Título: Estudo de caso: utilização do sistema de painéis monolíticos em EPS como alternativa ao sistema tradicional de construção em concreto armado e alvenaria. Autor(es): Oliveira, Thiago Queiroz Vilar Orientador: Severo, Cibelle Guimarães Silva Abstract: This article presents a case study on the use of monolithic expanded polystyrene (EPS) panels as an alternative to traditional reinforced concrete and masonry construction systems. The main objective was to qualitatively analyze the system, identifying the stages of the construction process most susceptible to failures that could compromise the structural and functional performance of the building, as well as to evaluate its advantages and disadvantages in terms of performance and sustainability.The methodology adopted consisted of directly monitoring the construction of a high-end single-family residence. Photographic records, field diaries, and systematic observations of the construction stages were collected, allowing for the technical characterization of the system, the analysis of the execution conditions, and the comparison with the usual practices of the conventional system.The results pointed to significant limitations in the foundation, installation, mortar, and prestressed slab stages, which were highly complex. On the other hand, the assembly of EPS panels presented relevant advantages, such as speed, lightness, waste reduction, and low resource consumption, in addition to the rapid adaptation of the workforce. The installation phases demonstrated ease of execution. Finally, prestressed slabs represented schedule gains, in addition to other aspects that will be mentioned throughout the study.It is concluded that the monolithic EPS system has competitive potential as a sustainable and efficient alternative, but its practical application depends directly on adequate planning, skilled labor, and the use of appropriate equipment. The absence of these factors compromised the quality and productivity observed in the study. For future research, we recommend analyzing pathologies in buildings completed with the system, conducting financial feasibility studies in high-end construction projects, and investigating thermoacoustic performance in order to broaden the understanding of its applicability in the context of Brazilian civil construction. Editor: Universidade Federal da Paraíba Tipo: TCC 2025-10-02T00:00:00Z https://repositorio.ufpb.br/jspui/handle/123456789/37800 Título: Potencial do resíduo de corte de mármore e granito como matéria-prima alternativa para argamassas de revestimento Autor(es): Macêdo, Ryan Teixeira Orientador: Gomes Neto, José Augusto Abstract: Currently, large amounts of solid waste are discarded into the environment, causing significant impacts. One of these wastes is marble and granite cutting waste (MGW). Therefore, this study evaluated the technical and economic feasibility of using marble and granite cutting waste as a partial substitute for aggregate and binder in rendering mortars. The research was motivated by the need to reduce the consumption of non renewable resources, such as sand and cement, and to provide an appropriate destination for the waste generated by the ornamental stone industry. For this purpose, experimental mixes were produced with partial replacements of sanda t 10%, 20% and 30%, and of cement at 10% by fine waste, and tested in both fresh and hardened states. The results showed that mortars with MGW maintained workability within the normative range, although with a higher water demand. In the hardened state, Mix T 30F presented the best overall performance, surpassing the reference mortar in compressive strength, flexural tensile strength, and bond strength. The economic analysis indicated a 7.85% reduction in cost per cubic meter, demonstrating technical, environmental, and financial benefits. It is concluded that MGW is a sustainable and viable alternative for rendering mortars, contributing to the preservation of natural resources and the reduction of environmental impacts. Editor: Universidade Federal da Paraíba Tipo: TCC 2025-09-30T00:00:00Z https://repositorio.ufpb.br/jspui/handle/123456789/37799 Título: O BIM aplicado ao retrofit de edificações históricas: Um estudo de caso na cidade de João Pessoa Autor(es): Ferreira, Raquel Martins Orientador: Fernandes, Luara Lopes de Araújo Abstract: The construction sector faces several challenges in updating its processes toward technological modernization and sustainnability, with Building Information Modelling (BIM) being one of the main tools to support interdisciplinar integration. However, its application in retrofitting historic buildings still presents gaps, especially regarding information management, process standardization, and team communication. In this context, this research analyzes the use of BIM methodology in the retrofit of a historic building in João Pessoa, aiming to understand its advantages and limitations, as well as to propose improvements for project development and coordination. The research strategy adopted was a case study, structured in three main stages: literature review, data collection, and results analysis. The findings revealed that BIM application was partial and fragmented, although advances were achieved in three-dimensional visualization. On the other hand, weaknesses were observed, such as the absence of execution plans and collaboration tools. It is concluded that the effectiveness of BIM in retrofit projects requires consolidated information management protocols, structured and parameterized 3D models, and continuous team training, contributing to overcoming cultural, organizational, and technological barriers in the sector. Finally, the study aligns with the Sustainable Development Goals (SDGs 8, 11, and 12) by promoting practices that foster greater productivity, sustainable urban revitalization, and responsible use of resources. Editor: Universidade Federal da Paraíba Tipo: TCC 2025-10-03T00:00:00Z