ANALYSIS OF NODAL STRESSES IN BLEVOT AND FREMY TESTS/ANALISE DAS TENSOES NODAIS NOS ENSAIOS DE BLEVOT E FREMY

For design of pile caps, strut and tie models are often adopted and have ample experimental support. Current norms present resistance limits different from the formulations proposed by the studies of Blevot and Fremy (1967), presenting conservative values. Thus, in order to analyze the behavior of t...

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Bibliographic Details
Published in:Holos (Natal, RN) RN), 2023-12, Vol.2023 (7), p.1
Main Authors: Delalibera, R.G, Silva, J.C.G, Giongo, J.S, Silva, A.A.S
Format: Article
Language:Portuguese
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Summary:For design of pile caps, strut and tie models are often adopted and have ample experimental support. Current norms present resistance limits different from the formulations proposed by the studies of Blevot and Fremy (1967), presenting conservative values. Thus, in order to analyze the behavior of the stresses in the nodal regions, an analytical analysis of the pile caps tested by Blevot and Fremy (1967) was carried out using the limits presented by the French researchers and those recommended by the main standard codes, in addition to other limits proposed by other researchers. With the results found, divergences in the results were observed. KEYWORDS: Nodal stress, pile caps, strut-and-tie models. Para o calculo e dimensionamento de blocos sobre estacas, os modelos analiticos adotados com maior frequencia sao baseados em modelos tridimensionais de bielas e tirantes, estes que possuem um grande amparo experimental. As normatizacoes atuais apresentam limites de resistencia diferentes das formulacoes propostas pelos estudos de Blevot e Fremy (1967), apresentando valores conservadores. Dessa forma, com o intuito de analisar o comportamento das tensoes nas regioes nodais, realizou-se uma verificacao analitica dos blocos sobre estacas ensaiados por Blevot e Fremy (1967) utilizando-se os limites apresentados pelos pesquisadores franceses, os recomendados pelas principais normatizacoes vigentes e os limites propostos por outros pesquisadores. Com os resultados encontrados foi observado divergencias nos resultados. PALAVRAS-CHAVE: Blocos sobre estacas, Modelos de bielas e tirantes, Tensoes nodais.
ISSN:1518-1634