Geometric parameters design and elastic shear buckling strength research of the type 2400 corrugated steel webs

The prestressed concrete composite girder bridge with corrugated steel webs is a new type of bridge structure which has been widely applied in domestic in recent years. In order to meet the practical engineering requirement on the large height with corrugated steel webs, the type 2400 corrugated steel webs was preliminary designed on the geometry parameters based on the original types of corrugated steel webs. The development of the elastic shear buckling strength theory for corrugated steel webs and the corresponding calculation method were concluded. A reliable finite element model for the elastic shear buckling analysis of corrugated steel webs was established. According to the numerical results obtained by finite element analysis of the elastic shear buckling of the type 2400 corrugated steel webs, the theoretical formulas for local elastic shear buckling strength and global elastic shear buckling strength were corrected, and empirical calculation formulas for interactive elastic shear buckling strength was obtained through fitting.