ABSTRACT
ABSTRACT Buckling has always been one of the key problems in cable-stayed bridge design. For long span steel cable-stayed bridges, the main girder and the tower both have thin-wall sections, so the overall and local buckling stability of the structure will be more prominent. Based on a 500m steel cable-stayed bridge, buckling analysis of the structure is conducted in this paper. The buckling coefficient and instability mode for different load combinations are obtained. The process of instability failure is also obtained through elastoplastic analysis as supplement. At last, the relationship between buckling and structural ultimate capacity is discussed.
