Experimental tests of stability and load carrying capacity of compressed thin-walled multi-cell columns of triangular cross-section

In the work the results of experimental tests of stability and ultimate load of compressed thin-walled columns of triangular cross-sections are presented. The tests have been conducted in order to prove that by substituting a single-cell cross-section by multi-cell one (at constant value of area) it is possible to exploit the material strength properties more efficiently. The experiments allow for verification of calculation methods proposed earlier and for the analysis of the inevitable imperfections’ influence on the behaviour and load carrying capacity of the tested models.