Computer-Aided Analysis of Lateral Load Distribution Based on the Method of Slab (Girder) with Transverse Rigid Joints

The computational programs were designed by Fortran 90 based on the principles of force method in structural mechanics, and by means of the optimized lateral auto-loading approach according to the 2004 criterion (JTG D60-2004) for the models of slab (girder) with transverse rigid joints, which are applied frequently to be a kind of practical manual algorithms in bridge design. A numerical example was given to show the conciseness of the method and the reliability of the programs.It was proven that this method would be important for structural design of bridges, and would make it possible to calculate the lateral distribution coefficients of bridge loading automatically.