Failure modes and designing procedures of the tubular truss beams welded joints according with EN 1993-1-8

Abstract

The paper presents the particularities of the truss elements welded joints failure modes and design for RHS or CHS diagonals and IPE or HEA chords. The design of these joints is regulated by Eurocode EN 1993-1-8 standard. Regarding the designing and manufacturing of the steel structures, the implementation of the European standards in Romania led to a design with complex checking possibilities, taking into account different failure modes. Also, the implementation of EN 1090-2 standard for quality control, produced a better manufacturing control of the steel structure joints. The most economical solution to join tubular cross-section truss elements is with direct welding – no additional steel plate. The joining type can vary from T or Y to K or N type with overlapping or with the gap between the welded elements.