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| Multi-mode coupled flutter numerical simulation for TMD control of long-span bridges |
| Received:December 13, 2010 Revised:May 20, 2011 |
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| DOI：10.7511/jslx20123004 |
| KeyWord:TMD passive control flutter critical wind speed suspension bridge |
| Author | Institution |
| 张鸣祥 |
合肥工业大学 土木与水利工程学院, 合肥 |
| 王建国 |
合肥工业大学 土木与水利工程学院, 合肥 |
| 汪权 |
合肥工业大学 土木与水利工程学院, 合肥 |
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| Abstract: |
| This study addresses the methodology and parameter study of TMD control for long-span bridges.The differential equations governing the motion of the structure with TMDs are established in the mode space,in which the effects of aerodynamic self-excited force are taken into account.The revised automatic analysis for multimode-coupled flutter,which is the single parameter searching method without iterations,is adapted for the flutter control analysis of structure-TMDs system based on the complex modal theory.Taking a three-tower suspension bridge being built crossing the Yangtze River for a numerical example,the flutter analysis of the original bridge and flutter control analysis of bridge-TMDs system are performed.The TMD parameters are discussed for influence of critical wind speed. |
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