P

End bolt-row

The smaller of: 27rm jwi + 2e\

The smaller of: 4m + 1,25e 2m + 0,625e + e1

2e1 + p

The smaller of: 2m + 0,625e + 0,5p e1 + 0,5p

Mode 1:

¿eff,1 - i-eff.nc but £eff,1 — ¿eff.cp

Z^eff,1 - ^eff,nc but Z^eff,1 — Z^eff,cp

Mode 2:

¿eff,2 - ^eff,nc

Z^eff,2 - ^eff,nc

6.2.6.4.2 Stiffened column flange, joint with bolted end-plate or flange cleats

(1) Transverse stiffeners and/or appropriate arrangements of diagonal stiffeners may be used to increase the design resistance of the column flange in bending.

(2) The design resistance and failure mode of a stiffened column flange in transverse bending, together with the associated bolts in tension, should be taken as similar to those of an equivalent T-stub flange, see 6.2.4, for both:

- each individual bolt-row required to resist tension;

- each group of bolt-rows required to resist tension.

(3) The groups of bolt-rows either side of a stiffener should be modelled as separate equivalent T-stub flanges, see Figure 6.9. The design resistance and failure mode should be determined separately for each equivalent T-stub.

1 End bolt row adjacent to a stiffener

2 End bolt row

3 Inner bolt row

4 Bolt row adjacent to a stiffener

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