Çelik basınç çubuklarında bazı güçlendirme türlerinin basınç dayanımı kapasitelerine katkısının deneysel araştırılması.

Steel members under the effect of axial compression are designed in such a way that there is no buckling. However, these elements should be strengthened in cases where the purpose of use of the structure changes or the building performance does not provide the desired strengths. In this study, four different strengthening were applied to increase the weak moment of inertia of the members by reference to the braces with a certain slender cross-section. Three of them are steel plate addition and the fourth is CFRP wrapping. One of the steel strengthening is welded and the other two are bolt supported strengthening. Strengthened test specimens were subjected to quasi-static cyclical axial loading with a prepared setup. As a consequence of the test, axial force-axial deformation curves were obtained. With the obtained data, bearing capacities, displacement capacities, buckling loads, energy dissipation capacities and ductility parameters are presented comparatively. As a result of the experiments, it was seen that the sample strengthened by welding the additional plate along the body caused the greatest increase in buckling strength compared to the reference sample, but it caused earlier failure in tensile. It was concluded that the contribution of the other samples to the compressive strength remained at low levels, but better performance could be achieved with improvements. [ABSTRACT FROM AUTHOR]