Limit state design of slender steel webs associated with the shear buckling

Abstract

The interaction of some cases ultimate limit state with the serviceability limit states is established. Thereby the single and multiple local buckling of the web are considered as serviceability limit state for checking shear resistance according to Euro code 3 «Design of steel structures». The method for checking shear resistance with the aforementioned serviceability limit state is developed and the sphere of application of these checking is proved. A general procedure for determining the necessity of the serviceability limit states associated with the loss of local stability is described. The necessity of the serviceability limit states in determining the shear resistance of steel elements is analyzed. It is shown that the limit state of serviceability, the corresponding local buckling of the web due to shear stresses can be reached before the ultimate limit state. The conclusions of the necessity of the further researching into the improvement of the engineering design method of shear resistance.