ششمین کنگره ملی مهندسی عمران , 2011-04-26

Title : ( Flexibility based method for the extent of damage in degrading bridge structures after in-service loading )

Authors: neda baghiee , Mohammad Reza Esfahani , -Kazem -Moslem ,

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This paper presents a method to identify damage in bridge structures based on the flexibility matrices in the modal strain space. In the study by the Ritz vectors extracted from flexibility matrix, the damage is identified. The localization approach is applied to low levels of damage on the prestressed concrete girder of simply supported bridge, with a focus on using a small number of sensors and only the fundamental mode of vibration. The validity of the method is also demonstrated using experimental modal data of a plate girder from I-40 Bridge over the Rio Grande. The predictions were found to closely match the actual response of the bridges. The proposed method can detect the damage in bridge structures using a limited number of sensors and vibration modes.

Keywords

, Bridge, Damage, Flexibility, Modal strain, Ritz
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@inproceedings{paperid:1024796,
author = {Baghiee, Neda and Esfahani, Mohammad Reza and -Moslem, -Kazem},
title = {Flexibility based method for the extent of damage in degrading bridge structures after in-service loading},
booktitle = {ششمین کنگره ملی مهندسی عمران},
year = {2011},
location = {سمنان, IRAN},
keywords = {Bridge; Damage; Flexibility; Modal strain; Ritz Vectors.},
}

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%0 Conference Proceedings
%T Flexibility based method for the extent of damage in degrading bridge structures after in-service loading
%A Baghiee, Neda
%A Esfahani, Mohammad Reza
%A -Moslem, -Kazem
%J ششمین کنگره ملی مهندسی عمران
%D 2011

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