Experimental evaluation of uncertainty effect on real-time damage monitoring in prestressed concrete girders

Title
Experimental evaluation of uncertainty effect on real-time damage monitoring in prestressed concrete girders
Author(s)
김정태; 박재형; 박우선; 이진학
KIOST Author(s)
Park, Woo Sun(박우선)Yi, Jin Hak(이진학)
Publication Year
2007-11-16
Abstract
In this study, a new damage monitoring method using a set of parallel ANNs and acceleration signals is developed for alarming locations of damage in PSC girders. The problem addressed in this paper is defined as the stochastic process. In addition, a parallel ANN-algorithm using output-only acceleration responses is newly designed for damage detection in real time. The cross-covariance of acceleration-signals is selected as the feature representing the structural condition. Neural networks are trained for uncertain loading patterns and damage scenarios of the target structure for which its actual loadings are unknown. The uncertainty effect on real-time monitoring using the proposed method is evaluated from model tests on PSC beams for which accelerations were acquired before and after several damage cases.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/30153
Bibliographic Citation
The Third International Conference on Structural Health Monitoring and Intelligent Infrastructures, pp.74, 2007
Publisher
ISHMII (International Society for Structural Health Monitoring of Intelligent Infrastructure)
Type
Conference
Language
English
Publisher
ISHMII (International Society for Structural Health Monitoring of Intelligent Infrastructure)
Related Researcher
Research Interests

Ocean Energy-Tidal Current Energy Converter System,Infrastructure Management-Structural Health Monitoring,Offshore Wind,해양에너지-조류발전시스템,시설물 유지관리-구조건전성 평가,해상풍력

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