ANALYSIS AND COMPARISON ON THE WIND STABILITY OF CABLE-SUPPORTED BRIDGES
The cable-supported bridge is a kind of structural system suitable for long and particularly super long-span bridges. Besides the traditional cable-stayed and suspension bridge, as a new cooperative system of cable-supported bridges, the cable-stayed-suspension hybrid bridge is frequently proposed in many sea-crossing bridges. Due to their great flexibility, cable-supported bridges are very susceptible to the wind action. By taking the suspension bridge, cable-stayed bridge and cable-stayed-suspension hybrid bridge with main span of 1400 m as examples, the dynamic characteristics, aerostatic and aerodynamic stability are investigated by 3D nonlinear aerostatic and aerodynamic analysis. The results show that as compared to the other two kind of cable-supported bridges, the cable-stayed-suspension hybrid bridge has greater structural stiffness and better wind stability, and becomes very suitable for long and particularly super long-span bridges.
Cable-stayed-suspension hybrid bridge Suspension bridge Cable-stayed bridge Wind stability
Xin-Jun Zhang Chao-Bing Zhang
College of Civil Engineering and Architecture, Zhejiang University of Technology,Hangzhou 310014, P.R. China
国际会议
第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)
长沙
英文
1599-1604
2008-10-19（万方平台首次上网日期，不代表论文的发表时间）