Resistência à torção de vigas de concreto armado leve, sob a ação de cargas combinadas

• Ano de defesa: 1973
• Autor(a) principal: Guerra, João Dourado
• 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: Vigas; Resistência; Torção; Concreto armado; Materiais; CNPQ::ENGENHARIAS::ENGENHARIA CIVIL::ESTRUTURAS::ESTRUTURAS DE CONCRETO
• Link de acesso: http://hdl.handle.net/11422/15784

The purpose of this work was to determine experimentaly the failure mechanism and to verify the ultimate torsional strength of massive beams of ligthweiht reinforced concrete, of rectangular sections, containing both longitudinal and transversal reinforcements, when subjected to the combined action of torsion, bending and shear. In such a way, it was used the method of analysis developed by Lessig and others for the case of normal reinforced concrete. Nine beams were tested, having as principal variable the parameter, ratio of torsional moment to the bending moment. The tests results showed that the criterions adopted in the method of analysis utilized are also rightly applicable in the case of ligthweiht concrete.