Welds
Resistance of fillet weld is calculated using expression
Where is: | Lwe |
|
The particular stresses are calculated for fillet weld:
The diagram of particular components
Stresses in fillet weld
Following expressions have to be satisfied in accordance with chapter 4.5.3.2
and
The joint of I-profile made of fillet welds is analysed using the plastic distribution of stresses. The web fillets transfer shear forces and flange welds transfer bending moments. This procedure may provide insufficient results for certain cases (e.g. beams with haunches). The elastic distribution may provide better resistance in these cases.
Connections to unstiffened flanges
The resistance of weld in connection to unstiffened flange is reduced according to the chapter 4.10 with the help of the effective widths of an unstiffened T-joint. The effective width is calculated using formula
Effective width for unstiffened flange
Bending resistance
The welds are designed for increased value of design moments according to the chapter 6.2.3(5). The design moment is calculated using following expressions:
- Braced frames - 1.4Mj.rd
- Unbraced frames - 1.7Mj.rd