Engenharia Civil (UACSA)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2910
Siglas das Coleções:
APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
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Resultados da Pesquisa
Item Desenvolvimento de uma ferramenta computacional para a análise de membranas em concreto armado(2023-09-22) Medeiros, Khrys Kathyllen da Silva de; Silva, Jordlly Reydson de Barros; http://lattes.cnpq.br/4382584044561547; http://lattes.cnpq.br/5605761011467421In this work, the behavior of reinforced concrete membranes is studied using the Modified Compression Field Theory (MCFT) and Rotating-Angle Softened Truss Model (RA-STM), both based on the solution of non-linear equation systems formulated based on equilibrium equations, strains compatibility, and material constitutive models. Initially, the models were implemented in Python programming language, and the Mohr Compatibility Truss Model (MCTM) was used as the initial estimate for the solution. Subsequently, the computational code was tested through some examples, and the results obtained were compared with numerical solutions from the literature and experimental tests, thus verifying the effectiveness of the method. With this, it was concluded that both analysis models presented good results, but the MCFT technique was closer to reality since it considers the concrete tension stiffening, unlike RA-STM. The developed implementation is a simple, effective, and computationally low-cost approach for assisting in the analysis of reinforced concrete panels subjected to membrane forces. Additionally, a graphical user interface was developed, making it accessible to professionals and students in the field of Civil Engineering, regardless of their familiarity with the programming language used. Therefore, the tool becomes an affordable alternative in terms of design, as it easily allows testing various combinations of material properties to determine the most viable option without compromising productivity.Item Influência da resistência característica (fck) na taxa de armadura em lajes nervuradas de concreto armado sob diferentes configurações de apoio para os concretos do grupo I e II de resistência, segundo a NBR 6118 (ABNT, 2014)(2019-07-12) Amorim Júnior, Laelson de Andrade; Melo, Weslley Imperiano Gomes de; http://lattes.cnpq.br/4789771132461158; http://lattes.cnpq.br/7943300714310248Ribbed slabs are being widely used in civil construction because they allow for large spans with low reinforcement rate, low concrete consumption and lower own weight, compared to massive type slabs, thus allowing execution of slender structures and consequently more economical. In addition to being easy to perform, it can be performed on site or through precast material and in various types of buildings, from homes to large hospitals and malls. Thus, the present work aims to verify influence of (fck) on the reinforcement rate in reinforced concrete ribbed slabs under different support configurations for strength groups I and II concretes, according to NBR 6118 (ABNT, 2014 ), through case study and elaboration of sizing routines based on the current literature. It can be observed that, for proposed case study, the increase of the (fck) had no great influence on reduction of the reinforcement rate, with only a 8.4% decrease in steel section, generating a cost reduction of 34% in its consumption, while the concrete had a significant increase of 190% in her cost. However, such an analysis was made only for ordinary residential buildings with small spans and small loads, so for spans and loading of special works such as bridges, nothing can be afirm.