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Abstract(s)
O presente trabalho pretende dar um contributo no estudo do comportamento de paredes em tabique, nomeadamente na quantificação e qualificação da sua resistência ao fogo. Este estudo baseia-se, fundamentalmente, na análise experimental e numérica de modelos de parede à escala real, em madeira de pinho nacional com preenchimento e acabamento à base de uma argamassa terrosa bastarda de terra e cal. Para a elaboração do modelo experimental à escala real procedeu-se à análise e avaliação em laboratório da argamassa a utilizar. A estrutura em madeira foi construída com base nas construções em tabique existentes na Associação de Municípios do Alto Tâmega. O modelo experimental possui a geometria apropriada e foi ensaiado num forno de ensaio de resistência ao fogo, preparado para trabalhar com a curva de incêndio normalizada ISO 834. As temperaturas foram registadas utilizando dois sistemas de aquisição de dados (medição pontual e medição de campo). Foi também desenvolvido um modelo numérico, validado experimentalmente, utilizando uma análise não linear material em regime transiente e com recurso a um programa de elementos finitos.
The aim of this work is to contribute to the study of the tabique walls, namely in what concerns quantification and qualification of its fire resistance. This study is based on experimental and numerical analysis of partition walls at real scale, made of national pine wood with filling and finishing based on a bastard earthy mortar of earth. For making experimental model at real scale, in laboratory, the mortar in use was evaluated. The wooden structure was built on the basis of tabique constructions existing in the Association of Counties of Alto Tâmega. The experimental models have the appropriate geometry and they were tested in a furnace for fire resistance assessment, prepared to work with the standard fire curve ISO 834. The temperatures were measured using two data systems (local and field measuring). Also a numerical model was developed, experimentally validated, using nonlinear material in transient analysis, based on finite element program.
The aim of this work is to contribute to the study of the tabique walls, namely in what concerns quantification and qualification of its fire resistance. This study is based on experimental and numerical analysis of partition walls at real scale, made of national pine wood with filling and finishing based on a bastard earthy mortar of earth. For making experimental model at real scale, in laboratory, the mortar in use was evaluated. The wooden structure was built on the basis of tabique constructions existing in the Association of Counties of Alto Tâmega. The experimental models have the appropriate geometry and they were tested in a furnace for fire resistance assessment, prepared to work with the standard fire curve ISO 834. The temperatures were measured using two data systems (local and field measuring). Also a numerical model was developed, experimentally validated, using nonlinear material in transient analysis, based on finite element program.
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Keywords
Tabique Construção sustentável Resistência ao fogo Análise experimental Modelação numérica