THE BUCKLING BEHAVIOR OF DOUBLE T STEEL SECTIONS ACCORDING THE INFLUENCE OF WELDING TECHNOLOGY

Abstract

In the Civil Engineering domain, an important role is paid by the weight reduction of steel structures, mostly because of the high cost of material. In order to be able to do that, the steel structures are designed in the elastic - plastic domain which makes the local and global instabilities have an overwhelming importance. Currently highly topical, but especially for the future structures, the welding technology with its great flexibility is one of the most attractive options for making the geometry of metallic elements. In this paper the authors want to find a closer connection between the welding technology and the requirements concerning the buckling behavior of the pillars, requirements imposed by the various standards of design. In this paper we obtained a method of verification of the influence that the welding technology has on the instability of metallic elements and the critical loads are much more simple to estimate.