Title :
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
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;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.878762
