Considering the influence of bending,axial and shear deformation of the superimposed slab shear wall (SSSW) section to the element dynamic property,fiber model was adopted to simulate the nonlinear hysteretic property for the interaction of bending deformation and axial deformation,and shear spring model was used to simulate the shear deformation.

The seismic damage model for four superimposed slab shear walls with edge restriction measures of two different forms and two general shear walls is analyzed.

The rebuilding scheme fully considers the harmony of the whole bridge with the surrounding environment, meets the planned traffic function requirements and the relative technical standards, puts forward the design of the steel composite beam structure for the main bridge and the technical measures taken for the sunk shaft foundation treat.

Experimental research on the shearing resistance strength of oblique section of composite beam;

Experimental study on bending behavior of composite beams with invertible T-shaped prestressed precast beam;

Calculation of normal section crack resistance of prestressed concrete composite beams with U-shaped precast beam;