Introduction of Gantry Girder
Overhead traveling cranes are used in industrial buildings to lift and transport heavy jobs, machines, and so on, from one place to another.
The crane may be a manually (hand) operated overhead traveling crane (M.O.T.) or an electrically operated overhead traveling crane (E.O.T.).
A typical arrangement of a crane system is shown below. Usually, the crane consists of a bridge made up of two truss girders.