CRANE HAVING AT LEAST ONE CRANE GIRDER, IN PARTICULAR A BRIDGE CRANE OR A PORTAL CRANE

摘要

The invention relates to a crane (1 a, 1 b), in particular an overhead crane or gantry crane, comprising at least one crane girder (2), which extends horizontally and is designed as a trussed girder having an upper run (3) and a lower run (4). A crane trolley (9) having a lifting device can be moved on the crane girder. The invention further relates to a method for assembling a crane girder (2), comprising an assembly step for producing the trussed structure of the crane girder (2). The crane girder (2) comprises an adapter (12) on at least one of the two opposite ends, which adapter can be fastened to the upper run (3) and the lower run (4) in such a way that the adapter (12) can be oriented relative to the upper run (3) and the lower run (4) and then the adapter (12) can be welded onto the upper run (3) and the lower run (4) in a desired position.