Moving Load Generator

Moving loads may be generated on any Microstran model, typically to generate service loads for bridge structures. Options are available to apply loads automatically to continuous beams or grillages in the Microstran model.

A number of different load types are available, including fixed distributed and concentrated loads, area loads, truck loadings (for standard trucks and user-defined trucks), lane loads, longitudinal loads, and lateral line loads. Multiple load cases can be specified (load types may be grouped to form a load case), and loads can be generated automatically to represent the movement of a specified load pattern across the structure.

An optional graphical interface is available to simplify the input of data for moving loads on a grillage. Lanes and user-defined trucks may be edited interactively in a graphics window. The dialog box below, for example, is used to define lanes.

After loads are generated they may be checked graphically by "driving" vehicles along the lanes.