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| Influence of some factors on the aerostatic and aerodynamic analysis of long-span suspension bridges |
| Revised:May 19, 2005 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20073056 |
| KeyWord:long-span suspension bridge,aerostatics,aerodynamics,nonlinear wind-structure interaction,wind speed spatial non-uniformity,the cable's wind load |
| ZHANG Xin-jun |
| School of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, China |
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| Abstract: |
| With increasing span length of suspension bridges,the cable's diameter and also the wind load acting on it,the nonlinear wind-structure interaction and the wind speed spatial non-uniformity increase consequently,which may have an unnegligible influence on the aerostatic and aerodynamic analysis of long-span suspension bridges.Taking Runyang Bridge over the Yangtze River as an example,effects of the nonlinear wind-structure interaction,wind speed spatial nonuniformity,and the cable's wind load on the aerostatic and aerodynamic analysis of the bridge are investigated analytically.The results show that the aerostatic behavior of long-span suspension bridges is significantly influenced by these factors,but for the aerodynamic stability,it is greatly influenced by the nonlinear wind-structure interaction,and the other two factors almost have no influence on it. |
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