Automação do cálculo de vigas mistas semi-contínuas incluindo ligações mistas

• Ano de defesa: 2003
• Autor(a) principal: Vanessa Heckert Sevilla Pires
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: Método dos componentes; Ligação mista; Capacidade de rotação; Viga mista; Resistência última; Engenharia de estruturas; Construção mista
• Link de acesso: http://hdl.handle.net/1843/GQUZ-5SHGRL

Composite systems of semi-continous beams interconnected by composite connections are analized. With an adequate connection between the steel section and the slab, it is possible to make them work together, even in the support region. The use of steel bars within this region provides resistance to flexural moment, which also warrantsthe ductility of the whole system. For a correct design of the composite connection, a detailed study of its components is necessary, which requires complex calculations. Basicaly, resistance, stiffness and rotation capacity of all the components have to be studied. Because of that, a software was developed in Delphi language, with the objective of designing a line of beams. Rigid-plastic analisys is used for ultimate limit states and elastic analisys for the serviceability limit state. The elastic analisys is performed introducing rotational springs between the beams, with the stiffness of the composite connection. A detaileddesign of a composite floor with composite connections is presented, and the results are compared with those obtained from the developed software.