Grillage for bridge deck slab
A grillage analysis for a deck slab supported on pinned or rotational springs using a stiffness matrix based on 3 degrees of freedom at each joint – vertical deflection and 2 rotations. Loading is by joint forces or moments in 2 directions. Primarily facilitates analysis of vehicle wheel loads for beam and slab bridges or the roof slab of a box culvert. Adjacent span conditions can be simulated by appropriate rotational spring stiffnesses.
- General arrangement allowing definition of geometry
- input data for beam and support properties
- loading input and results summary for key shear, moment and displacement results
- matrix parameters and full set of results.