Ligação viga-pilar em fase de montagem para estruturas de concreto pré-moldado: análise via modelagem computacional
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2016-07-05
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Universidade Federal de Goiás
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The connection is one of the most important phases in the precast structures project, being responsible for connecting the elements and enabling the efforts transference, directly interfering on the global stability of the structure. The real connection behavior can be studied by using physical experiments or by computer modelling. Both must be confronted with analytical models in order to obtain models that can be employed in the project connections. The computer modelling is a practical and economical way to investigate the structures behavior due to the programs sophistication based on the Finite Element and of Contour Method, and thanks to the increasing processing of computers performance. This study aims to analyze, by computer modelling, using the program DIANA® 9.6., the behavior of a beam-column connection composed by a steel corbel, formed by welded steel sheets “U” shaped, inserted in the column, and a steel hanger, inserted in the beam, formed by welded steel sheets in the shape of rectangular and hollow profile section. This connection has been studied experimentally by Prado (2014). The computer results of the validated three-dimensional model are compared with experimental ones and with the calculating models. In the final part, new proposals with modifications in the union form between the elements are presented in order to improve the mechanical performance. It was observed that the ultimate strength in proposals I and II, were respectively, 5,19% and 17,17% greater than the one in in the computer model M-VIIc.
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BUENO, E. Ligação viga-pilar em fase de montagem para estruturas de concreto pré-moldado: análise via modelagem computacional. 2016. 175 f. Dissertação (Mestrado em Geotecnia, Estruturas e Construção Civil) - Universidade Federal de Goiás, Goiânia, 2016.