Resumo

CARRILLO, JULIÁN; GONZALEZ, GIOVANNI  e  JIMENEZ, MAURICIO. INCIDENCE OF THE EXTRACTION DIAMETER OF CONCRETE CORES IN THE DRIFTS ANALYSIS OF FRAME STRUCTURES. Dyna rev.fac.nac.minas [online]. 2007, vol.74, n.152, pp.207-216. ISSN 0012-7353.

The results of an analytical and computational investigation are described in this article, where the variation of the framed buildings drift determined, considering the nucleus compressive strength of concrete obtained in the laboratory f'c_(L), and the real resistance f'c_(R) which is calculated based on the diameter of concrete nuclei extraction. Once the percentages of the drift variations with the corrected and not corrected resistance are determined, the percentages of variation variables as the resistance and the diameter of extraction are related to establish the type of existing behavior. Finally, equations are obtained to relate the parameters in study, which allow the structural engineer to determine the percentage in that the drift of a construction is diminished, if this one is modeled with the real resistance of concrete compression f'c_(R) and not with the concrete compression obtained of the nucleus f'c_(L).

Palavras-chave : extraction of concrete cores; concrete resistance; derives; elasticity modulus.

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