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Proposal of a new system to classify possible damages in piles partially reinforced considering the results of low strain integrity tests


Medium: journal article
Language(s): English
Published in: Revista IBRACON de Estruturas e Materiais, , n. 6, v. 12
Page(s): 1408-1427
DOI: 10.1590/s1983-41952019000600011

Low strain integrity tests in piles are relatively cheap, of quick execution and nondestructive. Despite all these advantages, several variables are involved and the influence of external factors can complicate the interpretation of the results. Between them, the influence of the pile reinforcement can be high lighted. In piles partially reinforced, the difference in density and elastic modulus of the concrete in different parts of the pile and the influence of the process of introducing the reinforcement bars can induce some reflections in the test that can be confused with damage in the pile and, therefore, should be taken into account to analyze the tests results. In this research, the influence of the reinforcement embedded in the piles is analyzed using numerical (FEM) simulations and comparing them with tests made in the field. A new classification of possible damages is proposed based on the analysis of the reflections observed at the end of the reinforcement cage embedded in a pile partially reinforced.


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