Application of Structural Health Monitoring System for Reliable Seismic Performance Evaluation of Infrastructures SCIE SCOPUS

Cited 9 time in WEB OF SCIENCE Cited 11 time in Scopus
Title
Application of Structural Health Monitoring System for Reliable Seismic Performance Evaluation of Infrastructures
Author(s)
Yi, Jin-Hak; Kim, Dookie; Go, Sunghyuk; Kim, Jeong-Tae; Park, Jae-Hyung; Feng, Maria Q.; Kang, Keum-Seok
KIOST Author(s)
Yi, Jin Hak(이진학)
Publication Year
2012-06
Abstract
In this study, the useful application of an instrumented structural health monitoring (SHM) system is proposed for the reliable seismic performance evaluation based on measured response data. A seismic fragility is chosen as a key index for probabilistic seismic performance assessment on an infrastructure. The seismic performance evaluation procedure consists of the following five main steps; (1) measuring ambient vibration of a bridge under general traveling vehicles; (2) identifying modal parameters including natural frequencies and mode shapes from the measured acceleration data by output-only modal identification method; (3) updating linear structural parameters in a preliminary finite element (FE) model using the identified modal parameters; (4) analyzing nonlinear response time histories of the structure using nonlinear seismic analysis program; and finally (5) evaluating the probabilistic seismic performance in terms of seismic fragility. In the present study, the seismic fragility curves are represented by a log-normal distribution function. An instrumented highway bridge is utilized to demonstrate the proposed evaluation procedure and it is found that the seismic fragility of a highway bridge can be reliably evaluated by combining the modal information obtained from the instrumented SHM system and FE model updating by using the information.
ISSN
1369-4332
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3556
DOI
10.1260/1369-4332.15.6.955
Bibliographic Citation
ADVANCES IN STRUCTURAL ENGINEERING, v.15, no.6, pp.955 - 967, 2012
Publisher
SAGE PUBLICATIONS INC
Subject
IDENTIFICATION
Keywords
seismic performance evaluation; structural health monitoring system; output-only modal parameter identification; real-coded genetic algorithm; seismic fragility index
Type
Article
Language
English
Document Type
Article
Publisher
SAGE PUBLICATIONS INC
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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