Truss section connection region

The invention relates to a truss section (13, 15), which has a connection region (31) formed at the end faces of at least one of its two ends. The connection region (31) can be connected to the connection region (31) of another truss section (13, 15). The truss section (13, 15) contains, in each case, two upper belt sections (21A, 21B) and two lower belt sections (23A, 23B) which extend parallel to one another in the longitudinal direction of the truss section (13, 15) and are connected to one another by means of connecting struts (25) in such a way that they delimit a rectangular space (71). The upper belt sections (21A, 21B) and the lower belt sections (23A, 23B) have a tubular cross section, wherein in the connection region (31) the upper belt sections (21A, 21B) and the lower belt sections (23A, 23B) are configured so as to transition from the tubular cross section into an I-shaped cross section.