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| Damage identification of random beam structures based on static measurement data |
| Received:November 28, 2011 Revised:April 02, 2012 |
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| DOI：10.7511/jslx201302002 |
| KeyWord:random beam structures damage identification static model errors measurement noises |
| Author | Institution |
| 黄斌 |
武汉理工大学 土木工程与建筑学院,武汉 |
| 纵瑞芳 |
武汉理工大学 土木工程与建筑学院,武汉 |
| 杨涛 |
武汉理工大学 土木工程与建筑学院,武汉 |
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| Abstract: |
| Under the condition of static load,model errors and measurement errors involved in practical structures are clearly defined in the view of probability in current paper.With consideration of the impaction of uncertain model errors and measurement errors on damage identification,the random control equations with damage index of beam structures under static load are established.Combining static condensation method and perturbation technique,the solutions of the random equations are determined.Based on the determined damage index,the probability of structural damage can be achieved according to the damage definition provided in the paper.In the end,the several numerical examples of random beam structures are investigated to illustrate the effectiveness of the suggested method. |