Wind Tunnel Experimental Research on Flutter Stability of Liujiaxia Bridge
Liujiaxia Bridge is a truss stiffening girder suspension bridge which span is 536m, and it is the narrowest suspension bridge with the same scale, so the problems of flutter stability are prominent. Results of wind tunnel test show that its critical velocity cannot meet the requirements without any aerodynamic measures. Based on above considerations, seven kinds of aerodynamic measures are proposed, respectively wind tunnel tests are conducted. The results show that the program, in which the upper central stable board is 1.12m high and the under central stable board is 1.28m high, can meet the requirements. The results of this study provide some references to solving the problem of wind-resistant stability of narrow deck suspension bridge.
Nuwen Xu, Li Tian and Feng Dai
C. S. Shu, "Wind Tunnel Experimental Research on Flutter Stability of Liujiaxia Bridge", Applied Mechanics and Materials, Vols. 361-363, pp. 1105-1109, 2013