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(3) The design internal moment M,Ed may be taken as the value at the point where the centreline of the brace member meets the face of the chord member.

(4) The design in-plane moment resistance and the design out-of-plane moment resistance M,Rd should be obtained from Table 7.3, Table 7.4 or Table 7.5 as appropriate.

(5) The special types of welded joints indicated in Table 7.6 should satisfy the appropriate design criteria specified for each type in that table.

(6) Values of the factor Xg which is used in Table 7.2 for K, N and KT joints are given in Figure 7.6. The factor Xg is used to cover both gap type and overlap type joints by adopting g for both the gap and the overlap and using negative values of g to represent the overlap q as defined in Figure 1.3(b).

Overlap type joints Gap type joints

Figure 7.6: Values of the factor kg for use in Table 7.2

Overlap type joints Gap type joints

Figure 7.6: Values of the factor kg for use in Table 7.2

Type of joint

Design criteria

The forces may be either tension or compression but shall act in the same direction for both members.

1l,Ed < 1l,Rd where Ni,Rd is the value of M,Rd for an X joint from Table 7.2.

Member 1 is always in compression and member 2 is always in tension.

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