A computational and experimental evaluation of damage index method for bridge diagnostics

Author

Wang, Ming L. ; Xu, Fan L. ; Lloyd, George M.

Author_Institution

Dept. of Civil & Mater. Eng., Illinois Univ., Chicago, IL, USA

Volume

1

Issue

6

fYear

2000

fDate

36770

Firstpage

6

Abstract

A calibrated finite element model of a large concrete bridge is used to parametrically evaluate - as a function of damage location and severity - the potential of the popular damage index method to serve as a useful bridge diagnostic tool for monitoring, system identification, and control. The results of the study allow a clearer picture to emerge regarding the appropriateness of several of the assumptions used in the technique. These assumptions include the normalization of every response to the entire field of changes, and the so-called random variable assumption. The results shown to be important when the damage index is applied to interpret experimental data

Keywords

condition monitoring; fault diagnosis; finite element analysis; identification; structural engineering; concrete bridge; condition monitoring; damage index; fault diagnosis; finite element model; random variable assumption; system identification; Bridges; Building materials; Capacitive sensors; Concrete; Condition monitoring; Finite element methods; Random variables; Shape; System identification; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2000. Proceedings of the 2000

Conference_Location

Chicago, IL

ISSN

0743-1619

Print_ISBN

0-7803-5519-9

Type

conf

DOI

10.1109/ACC.2000.878762

Filename

878762