Análise limite de lajes via programação linear através do método dos elementos finitos

• Ano de defesa: 1987
• Autor(a) principal: Mello, Luis Fernando Nunes
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Rio de Janeiro; Brasil; Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia; Programa de Pós-Graduação em Engenharia Civil; UFRJ
• Palavras-chave em Português: Engenharia Civil; CNPQ::ENGENHARIAS::ENGENHARIA CIVIL
• Link de acesso: http://hdl.handle.net/11422/3725

Based upon the Yield-Line Theory (Johansen, 1932) a non-oonventional finite element is formulated for the analysis of slabs whose oonstitutive law is defined through a moment-rotation curve at the section transversal to the yield-line. Thus only with the displacement perpendicular to the slab medium surface at each one of the four nodal points, the element shows to be excellent to represent and find the configuration and the factor of collapse beginning from a criterious and rational discretization. It can be used in the limit analysis by linear programming or in the elastic-plastic analysis, considering forces increasing proportionally (Static Collapse) or independently from each other (Shakedown Analysis).