Analysis of architecture projects allied to structure using numerical tools for effort determination and nodal displacement
GODOI, R. M.1; VANALLI, L.1; SILVIA, S. S.2
1 Universidade Estadual de Maringá - UEM; 2 Faculdade União das Américas - Uniamerica
doi:10.20906/CPS/CILAMCE2017-0732
Resumo
Nowadays the use of numeric models for analysis of problems in structural engineering is indispensable. As the computer and the modern analysis methods were created, overcome such obstacle in engineering was possible, thus, allowing us to make use of all the advantage of a structure with more links, such as material saving, bigger security coefficient, biggest stiffness of elements and structures aesthetically more alluring. The major part of the specialized engineers in structural projects use commercial softwares based in the Finite Element method, these that are still commercialized several times in packages, which demand a big investment from the designers. In such context, this article presents a numeric study destined to analyze hyperstatic structures which are commonly found in the majority of the building projects in civil engineering. From the free available softwares, there isn't a single one that can be used with ease and that approaches situations of structures spatially arranged. Hence, knowing the methods of analysis, it is possible to produce more simple numeric tools than the ones from the commercial softwares, focusing in helping the most complex problems of engineering, with the usage of more elaborated methods of analysis and allied to efficiency and architectonic configuration of the buildings. In this paper, the Direct stiffness method (DSM) will be approached with a bigger emphasis, since that this method it's the fittest to be implemented computationally. In this method, the matrices that represent the element stiffness are calculated in a series of efforts, such as the nodal displacement in the horizontal axis due to a horizontal effort. With the usage of a spreadsheet and a suitable model, the efforts and displacements present in the hyperstatic structures normally employed in the buildings structures (beams, portico and plain or spatial grids) are calculated and the results are shown very concordant with the analytical results. The study developed here, is also very interesting to be emp
Palavras-chave: Hyperstatic; Structures; Direct Stiffnes Method; Engineering