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ORIGINAL PAPER
Study of the influence of temperature and water level of the reservoir about the displacement of a concrete dam
1
Department of Physics, Statistics and Mathematics, Federal Technological University of Paraná, Francisco Beltrão, Paraná, BRAZIL
2
Department of Statistics, Federal University of Paraná, Curitiba, Paraná, BRAZIL
3
Coordination of the Degree in Mathematics, Federal Technological University of Paraná, Toledo, Paraná, BRAZIL
4
Division of Civil Engineering and Architecture, Itaipu, Foz do Iguaçu, Paraná, BRAZIL
Online publication date: 2016-03-07
Publication date: 2016-02-01
International Journal of Applied Mechanics and Engineering 2016;21(1):107-120
KEYWORDS
ABSTRACT
Multivariate techniques are used in this study to analyze the monitoring data displacements of a concrete dam, measured by means of pendulums, extensometer bases and multiple rod extensometers, taking into account the action of environmental conditions, bounded by the surface temperature of the concrete at ambient temperature and the tank water level. The canonical correlation analysis is used to evaluate the influence of environmental variables in the displacement of structures and dam foundations. The factor analysis is used to identify data sources of variability and order the sensors according to the action of factors. The dates of the measurements are grouped according to similarities in the present observations, by applying the cluster analysis. Then the discriminant analysis is used to assess the groups as to their homogeneity. The results demonstrate that the techniques used for distinguishing the dam responses and identify the effects of changes in environmental conditions on the displacements of the structures and dam foundations.
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