Practical countermeasures for the aerodynamic performance of long-span cable-stayed bridges with open decks
Rui Zhou, Yongxin Yang, Yaojun Ge, Priyan Mendis, Damith Mohotti
Wind and Structures | TECHNO-PRESS | Published : 2015
Open decks are a widely used deck configuration in long-span cable-stayed bridges; however, incorporating aerodynamic countermeasures are advisable to achieve better aerodynamic performance than a bluff body deck alone. A sectional model of an open deck cable-stayed bridge with a main span of 400 m was selected to conduct a series of wind tunnel tests. The influences of five practical aerodynamic countermeasures on flutter and vortex-induced vibration (VIV) performance were investigated and are presented in this paper. The results show that an aerodynamic shape selection procedure can be used to evaluate the flutter stability of decks with respect to different terrain types and structural pa..View full abstract
Awarded by Natural Science Foundation Committee of China
Awarded by Ministry of Science and Technology of China
Awarded by Ministry of Transport of China
The authors gratefully acknowledge the joint financial support by the Natural Science Foundation Committee of China (Grant no. 51078276 and 91215302), the Ministry of Science and Technology of China (Grant no. SLDRCE10-B-05), and the Ministry of Transport of China (Grant no. KLWRBMT-04).