ABSTRACT

In two diagrams (Figures 6 and 7), the achieved yield load of the test specimen (strength depending on design) has been related to the theoretical yield load of the hollow section (PO.Z/ (A' fy,k) ). In two further diagrams (Figures 8 and 9), the ratio load-bearing capacity/theoretical ultimate load at rupture of the hollow section (PMX / (A' fu,k» has been recorded. In the diagrams 1 and 3 (Figures 6 and 8) a generating curve of an envelope has been defined above which are all test values. In the diagrams 2 and 4 (Figures 7 and 9) a statistical evaluation of results is presented.