Vibration-based damage monitoring of harbor caisson structure with damaged foundation-structure interface SCIE SCOPUS KCI OTHER

Cited 19 time in WEB OF SCIENCE Cited 19 time in Scopus
Title
Vibration-based damage monitoring of harbor caisson structure with damaged foundation-structure interface
Author(s)
Lee, So-Young; Khac-Duy Nguyen; Thanh-Canh Huynh; Kim, Jeong-Tae; Yi, Jin-Hak; Han, Sang-Hun
KIOST Author(s)
Yi, Jin-Hak(이진학)
Publication Year
2012-12
Abstract
In this paper, vibration-based methods to monitor damage in foundation-structure interface of harbor caisson structure are presented. The following approaches are implemented to achieve the objective. Firstly, vibration-based damage monitoring methods utilizing a variety of vibration features are selected for harbor caisson structure. Autoregressive (AR) model for time-series analysis and power spectral density (PSD) for frequency-domain analysis are selected to detect the change in the caisson structure. Also, the changes in modal parameters such as natural frequency and mode shape are examined for damage monitoring in the structure. Secondly, the feasibility of damage monitoring methods is experimentally examined on an un-submerged lab-scaled mono-caisson. Finally, numerical analysis of un-submerged mono-caisson, submerged mono-caisson and un-submerged interlocked multiple-caissons are carried out to examine the effect of boundary-dependent parameters on the damage monitoring of harbor caisson structures.
ISSN
1738-1584
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3412
DOI
10.12989/sss.2012.10.6.517
Bibliographic Citation
SMART STRUCTURES AND SYSTEMS, v.10, no.6, pp.517 - 546, 2012
Publisher
TECHNO-PRESS
Subject
GENETIC ALGORITHMS; NEURAL-NETWORKS
Keywords
harbor caisson; foundation-structure interface; damage monitoring; autoregressive model; power spectral density; modal parameters
Type
Article
Language
English
Document Type
Article
Publisher
TECHNO-PRESS
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