Reconstruction Problem of Reinforced Concrete Beams under Harmonic Excitations
A damage detection method based on harmonic structural vibrations has been applied to reconstruct realistic damage patterns of reinforced concrete beams. It was shown that the application of a hybrid method (genetic algorithm and Levenberg-Marquardt minimization technique) makes it possible to effectively reconstruct the flexural stiffness drops as small as 10-20% with the maximum error of 4%. The error increases to about 7 to 9% with the presence of 1% measurement noise.
L. Garibaldi, C. Surace, K. Holford and W.M. Ostachowicz
S. Kokot and Z. Zembaty, "Reconstruction Problem of Reinforced Concrete Beams under Harmonic Excitations ", Key Engineering Materials, Vol. 347, pp. 691-696, 2007