Methods for modeling the structural health of a civil structure based on electronic distance measurements
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United States of America Patent
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Jun 26, 2012
Grant Date -
Apr 21, 2011
app pub date -
Dec 20, 2010
filing date -
Dec 4, 2008
priority date (Note) -
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Abstract
Methods are disclosed wherein the structural health of a civil structure, such as, but not limited to, a bridge or the like is measured by electronic distance measurement (EDM) from a plurality of stable locations to a plurality of cardinal points on the structure in a methodical manner. By measuring the coordinates of the cardinal points, the dynamic and long-term static behavior of the structure provide an indication of the health of the structure. Analysis includes: comparison to a Finite Element Model (FEM); comparison to historical data; and modeling based on linearity, hysteresis, symmetry, creep, damping coefficient, and harmonic analysis.
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