The paper deals with experimental investigation of slender thin-walled box columns and subsequent numerical simulation of tests. Eight full-scale tests were carried out with different global slenderness of welded and cold-formed columns subjected to centric and eccentric compression. All columns failed in combined global and local buckling mode. For the purpose of profound numerical simulations of tests, material properties were also tested, and the initial column geometry and residual stresses were carefully measured. The results of FEA simulations show good agreement with the test results.
The paper deals with the numerical simulation of 8 tests on slender thin-walled box columns, subjected to centric and eccentric compression. In numerical models different initial imperfections were carefully applied as measured from tests and material was modelled based on material properties obtained from tensile tests. The results of FEA simulations show good agreement with the test results. On verified numerical model the influence of each particular initial imperfection was studied and equivalent geometric imperfections were tested for the considered column configurations.
COBISS.SI-ID: 4801121
This paper deals with 8 full-scale tests on slender thin-walled box columns, susceptible to instability of both types: to global Euler buckling as well as to local buckling of steel plates. Centric and eccentric loading conditions were applied. Columns were fabricated from welded and cold-formed profiles in order to observe the effect of different fabrication procedures. Material properties were also tested and different initial column imperfections were carefully measured: global and local geometric imperfections, initial column inclination and the level and distribution of residual stresses.
COBISS.SI-ID: 4803681
Paper presents the results of tests and numerical simulations on slender thin-walled box columns, susceptible to combined buckling modes. Eight full-scale tests were performed on welded and cold-formed box profiles, loaded in centric and eccentric compression. In addition, material properties were tested and residual stresses as well as initial column geometry was carefully measured. The measured data was implemented in FE model. The results of numerical simulations show good agreement with the test results.
COBISS.SI-ID: 4772961
The paper presents results of the research on the stability aspects of king-piles of combined steel sheet piles. Some existing systems of steel sheet piles could not satisfy all stability requirements according to new Eurocode 3 design rules. In the study an advanced design procedure was developed taking into account the embedment of king-piles into surrounding soil being considered in the form of rotational and translational spring supports. Considering this effect together with elastic supports from adjacent steel sheeting, the required stability level may be successfully reached.
COBISS.SI-ID: 4801633