Yield stresses in compressed and bended columns and beams

Abstract

Yield stresses develop in steel structures when high loading is applied. If a column or other element of the structure is compressed, not only bended, then yield stresses can appear on one side of the cross-section, or on both sides. These states of stresses differ from one another and from elastic state also. Variation of the yield stresses in double-tee columns is presented in this paper. Thickness of the column webs is assumed infinitesimal and limit stress states are determined when bending moment is increasing. When the area of cross-section is sufficiently large the absence of double-sided yield region for any bending mo-ment is proved. These investigations are applicable in the case of extreme structure loading.