Research Article
An Experimental Study of Structural Identification of Bridges Using the Kinetic Energy Optimization Technique and the Direct Matrix Updating Method
Table 8
Comparison of 7 DOF analysis results and full DOF cases.
| | | Analysis (7 DOF) versus analysis (39 DOF) | Analysis (7 DOF) versus experimental (39 DOF) | | | Analysis
(7 DOF) | Analysis
(39 DOF) | Error (%) | Analysis
(7 DOF) | Experimental
(39 DOF) | Error (%) |
| | 1st mode | 9.4244 Hz | 9.1719 Hz | 2.7529 | 9.4244 Hz | 9.0890 Hz | 3.6900 | | 2nd mode | 12.0453 Hz | 11.2544 Hz | 7.9160 | 12.0453 Hz | 11.2557 Hz | 7.0151 | | 3rd mode | 18.8065 Hz | 16.8643 Hz | 11.5166 | 18.8065 Hz | 17.1442 Hz | 9.6959 |
|
|
