Multivariate analysis of the displacements of a concrete dam with respect to the action of environmental conditions

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Published: May 31, 2016
DOI: https://doi.org/10.14807/ijmp.v7i2.413
Keywords:
structural monitoring concrete dam multivariate analysis.

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Sheila Regina Oro
Federal University of Technological - Paraná
Anselmo Chaves Neto
Federal University of Paraná
Tereza Rachel Mafioleti
Federal University of Technological - Paraná
Suellen Ribeiro Pardo Garcia
Federal University of Technological - Paraná
Cláudio Neumann Júnior
Itaipu
صندلی اداری

Abstract

A review of the concrete dam’s structural performance is a complex issue comprised of many dimensions. This article proposes a method to assist in monitoring the displacements of structures and foundations of dams, considering the action of environmental conditions. Multivariate techniques are used to analyze the data pendulums, extensometer bases and multiple rods extensometer, along with environmental variables of the concrete surface temperature, ambient temperature and the reservoir water level. Specifically applies to Canonical Correlation Analysis to evaluate the influence of environmental variables in the displacement of structures and foundations. Factor Analysis identifies the factors inherent to the variability of the data. This technique makes it possible to order the variables considering the action of factors. This applies also to Cluster Analysis on the data of dates of measurements, according to the similarities present in the observations. Then, Discriminant Analysis evaluates the formed groups for uniformity. The results demonstrate that the method can distinguish the dam responses and identify the effects of variations in environmental conditions over the displacements of structures and foundations.

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Article Details

Issue
Vol. 7 No. 2 (2016): Independent Journal of Management & Production
Section
Articles

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