Purpose: Used to specify the resolution of the girder system analysis model in Girder System Projects. (Not applicable to Line Girder Projects.)
--> Given in girder system input
When applied to a plate and eccentric beam finite element model, a nearly equilateral triangular finite element mesh is fitted to the boundaries of the girder system (see PLATE AND ECCENTRIC BEAM FINITE ELEMENT MODEL ). (Also see LOW RESOLUTION MESH , MEDIUM RESOLUTION MESH )
When applied to a grid model, nodes in addition to those given as brace locations are placed at twentieth points which are not closer than span/40 from a brace or support location. If used for grid model, each span of each girder must be at least 50 feet or 15 meters.