Beams of the concreto reinforced with strips of the Dendrocalamus Giganteus bamboo / Vigas de concreto armadas com taliscas de bambu Dendrocalamus Giganteus

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

The use of bamboo as a structural element has been studied for some years, presenting excellent results relating to its physical and mechanical characteristics. Therefore, some researches began in last decade?s studies to apply bamboo as reinforcement in concrete elements. In this sense, this work has intended to present solutions to most common problem in the application of bamboo in structural concrete elements: an efficient calculus procedure, obtaining the limit states. Thus, it was chosen de Dendrocalamus giganteus specie because it?s easy to find this specimen in Brazil and because of its dimensions. The bamboo caulis were cut in strips with 2 x1 cm cross section. Then it was realized physical and mechanical characterization tests, in accordance to literature proceedings ant methods proposed in this work. From this tests results and according to FERREIRA (2002), it was conducted the theorical calculus respecting NBR 6118 (2003). It was considered second state, determining as an ultimate limit state the ultimate deformation of the bamboo equal to 2,0?. For the service limit state it was determined the maximum vertical displacement. It was constructed six beams with longitudinal reinforcement of bamboo strips without adherence treatment and without stirrups. Three of this beams had its strips bent. The results indicate the possibilities in the use of bamboo strips as reinforcement of concrete beams, following second state. The use of bent strips provided a better distribution of the cracks and consequently a better anchorage of the reinforcement

ASSUNTO(S)

construção de concreto armado beam materiais de construção concrete bamboo construção de bambu vigas de concreto bambu

ACESSO AO ARTIGO

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