Research on Identification Theories of Bridge Damage

This paper makes a research on dynamic fingerprints methods and model updating methods of identification theories of bridge damage. And it has a full study on and makes a comparison among the four basic theories of dynamic fingerprints and their applications in engineering, signifying the advantages and disadvantages. The general procedures of damage identification of model updating method are proposed. And finally it points out that the problems needing further studies and the directions of development in damage identification theories.