Topic:
Design of Welded Connection of I-Section
Notes:
A welded connection of an HEA cross-section under biaxial bending with axial force will be designed. The design of welds for the given internal forces according to the simplified method (DIN EN 1993-1-8, Clause 4.5.3.3) by means of SHAPE-THIN will be performed.
Description:
Two methods are available for the design of a weld according to EN 1993-1-8 [1]. The engineer can use the direction-related or the simplified method for the design.
Basically, the direction-related method is more cost effective, whereas the simplified method has identical results parallel to the axis of the weld in case of only shear stresses in the fillet weld area.
In the present example of an HEA cross-section, the design with the simplified method according to EN 1993-1-8, Clause 4.5.3.3 will be carried out quickly and easily with the SHAPE-THIN stand-alone program.
The acting internal forces can be entered in Table 3.1:
N = -1,190 kN
V-y = 180 kN
V-z = 370 kN
M-y = 225 kNm
M-z = 26 kNm
The design value of the shear strength for the weld is calculated with the formula
to
This must be set in the calculation parameters in SHAPE-THIN, because the default setting corresponds to the equivalent stress according to Mises (see Figure 03).
The design result in SHAPE-THIN is directly shown graphically. The ratio of the welds on the flange and web can be determined quickly by means of the color gradient.