NEHRP Clearinghouse
- Title
- System Identification, Damage Assessment, and Reliability Evaluation of Structures.
- File
- PB288889.pdf
- Author(s)
- Ting, E. C.; Chen, S. J. H.; Yao, J. T. P.
- Source
- National Science Foundation, Washington, DC. Applied Science and Research Applications., February 1978, 69 p.
- Identifying Number(s)
- CE-STR-78-1
- Abstract
- Available literature on the methods of structural identification, damage assessment, and reliability evaluation are reviewed and summarized. The possibility of combining those techniques into a rational procedure for practical implementation is discussed. The available literature has been presented in tabular form. System identification is a process for constructing a mathematical description or model of a physical system when both the input to the system and the corresponding output are known. For most of the current applications, the input is usually a forcing function and the output is the displacement or other motions of the structure subjected to the forces. The mathematical model obtained from the identification process should produce a response that in some sense matches closely the system's output, when it is subjected to the same input. Several recommended procedures for inspection and safety assessment are reviewed and summarized. It is believed that further development and improvement are possible and desirable. The possible incorporation of system identification techniques into damage assessment is also discussed.
- Keywords
- Structures; Damage assessment; Earthquake resistant structures; Dynamic response; Earthquake engineering; System identification; Linear systems; Nonlinear systems; Earthquakes; Dynamic structural analysis