Vibration and impedance monitoring for prestress-loss prediction in PSC girder bridges SCIE SCOPUS KCI OTHER

Cited 55 time in WEB OF SCIENCE Cited 56 time in Scopus
Title
Vibration and impedance monitoring for prestress-loss prediction in PSC girder bridges
Author(s)
Kim, Jeong-Tae; Park, Jae-Hyung; Hong, Dong-Soo; Cho, Hyun-Man; Na, Won-Bae; Yi, Jin-Hak
KIOST Author(s)
Yi, Jin-Hak(이진학)
Publication Year
2009-01
Abstract
A vibration-impedance-based monitoring method is proposed to predict the loss of prestress forces in prestressed concrete (PSC) girder bridges. Firstly, a global damage alarming algorithm using the change in frequency responses is formulated to detect the occurence of damage in PSC girders. Secondly, a local damage detection algorithm using the change in electro-mechanical impedance features is selected to identify the prestress-loss in tendon and anchoring members. Thirdly, a prestress-loss prediction algorithm using the change in natural frequencies is selected to estimate the extent of prestress-loss in PSC girders. Finally, the feasibility of the proposed method is experimentally evaluated on a scaled PSC girder model for which acceleration responses and electro-mechanical impedances were measured for several damage scenarios of prestress-loss.
ISSN
1738-1584
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4346
DOI
10.12989/sss.2009.5.1.081
Bibliographic Citation
SMART STRUCTURES AND SYSTEMS, v.5, no.1, pp.81 - 94, 2009
Publisher
TECHNO-PRESS
Subject
MODAL IDENTIFICATION; CONCRETE STRUCTURES; MATERIAL SYSTEMS; DAMAGE DETECTION; FREQUENCY; BEAM; SENSORS; FORCE
Keywords
structural health monitoring; prestress-loss; vibration-based damage detection; PSC girder; vibration; electro-mechanical impedance; modal parameters
Type
Article
Language
English
Document Type
Article
Publisher
TECHNO-PRESS
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