Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/91338
Title: Structural damage identification of municipal bridges using Strain Frequency Response Function
Authors: Jiang, Z.
Zhang, Z. 
Chen, B.
Keywords: Strain frequency response function
Structural damage identification
Issue Date: 2012
Source: Jiang, Z.,Zhang, Z.,Chen, B. (2012). Structural damage identification of municipal bridges using Strain Frequency Response Function. Proceedings of the 12th International Symposium on Structural Engineering, ISSE 2012 : 1535-1538. ScholarBank@NUS Repository.
Abstract: A method for the localization and assessment of damage is presented in this study. The method is based on the use of Strain Frequency Response Function (SFRF) data sensitivities to changes in Young's modulus. With these sensitivities, differences in the dynamical behavior of the structure in its undamaged and damaged conditions can be translated into damage information. Numerically generated data, from a simple-supported plane, are used for better demonstration. Results illustrate that the SFRF curvature ratio change is sensitive to damage than three of the most referenced methods on literature, modal shape, modal strain and FRF curvature. The presented method is simple and robust in locating single or multiple damages as well as identifying damage severity for its less of sensitivity to the measurement errors, however, it is influenced by the frequency range to some extent.
Source Title: Proceedings of the 12th International Symposium on Structural Engineering, ISSE 2012
URI: http://scholarbank.nus.edu.sg/handle/10635/91338
ISBN: 9787030357878
Appears in Collections:Staff Publications

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