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Welds

Resistance of fillet weld is calculated using expression

Where is:

Lwe

  • The weld length

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

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