| 摘要 |
The invention relates to a framework construction having low weight, high rigidity and strength and of the kind comprising beams (11) in the form of tubes, which are interconnected by means of joints (21) to form a three-dimensional frame structure. The beams (11) in their basic shape consist of two tubes (13) connected to one another by means of a web (14), forming an I-beam (12). The beams (11), depending on load conditions and demands for rigidity, are assembled from several I-beams, forming L, U and/or box-profiles or combinations thereof. In order to form the frame structure, at least the tubes (13) of the beams are connected to each other through tube joints (21) at the ends of the beams and/or along the length of the beam in regions (22) designed therefore. The tube joints (21) are non-rotationally mounted to at least the tubes. |
