Crane, in particularly overhead crane or gantry crane, comprising at least two crane girders

A crane comprising:

• at least two crane girders that extend horizontally in a longitudinal direction, wherein the girders are designed as trussed girders and each includes an upper run configured to support a movable crane trolley having a lifting gear;
• wherein the upper runs are each composed of a first upper run portion and a second upper run portion;
• a running rail positioned atop and spanning between the two upper run portions of each upper run, wherein the two upper run portions are connected together by the running rail;
• wherein the upper run portions are formed as angular profile girders and each include a vertical web adjoining a horizontal flange;
• and
• wherein the vertical webs extend in parallel with each other, are spaced apart from each other by a gap, and the gap is bridged by the running rail.

A crane comprising:

• at least two crane girders that extend horizontally in a longitudinal direction, wherein the girders are designed as trussed girders and each includes an upper run configured to support a movable crane trolley having a lifting gear;
• wherein the upper runs are each composed of a first upper run portion and a second upper run portion;
• a running rail positioned atop and spanning between the two upper run portions of each upper run, wherein the two upper run portions are connected together by the running rail;
• wherein the upper run portions are formed as angular profile girders and each include a vertical web adjoining a horizontal flange;
• and
• wherein the crane girders designed as trussed girders comprise struts and posts that each have upper apertures, into which the vertical webs protrude.