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Steel Designers' Manual - 6th Edition (2003)
Worked examples 771
Subject Chapter ref.
No. 1
COLUMN SPLICE
Check 3 – Tension capacity of the cover plate
Design code Made by DBM Sheet no.
BS 5950 Checked by BD
The basic requirement is that the net tension capacity of the cover
plate must be greater than or equal to the applied net tension.
The tension capacity of the cover plate is given by the following
expression:
Ft = pyAfp
where py is the tensile strength of the plate
A fp is the effective area of the cover plate
A fp = KeAnet £ Agross
where Ke is the effective net area coefficient ( for S275 steel Ke = 1.2)
A net = 305 ¥ 10 - 2 ¥ 22 mm 2
= 3006 mm 2
Agross = 305 ¥ 10 mm 2
= 3050 mm 2
Afp = 1.2 ¥ 3006
= 3607.2 mm 2
Net area of the flange plate is greater than the gross area of the
section therefore take the net area equal to the gross area.
A fp = 3050 mm 2
3050
Ft = 275 ¥ kN
1000
= 838. 8 kN
838.8 kN > 33.33 kN
The tension capacity of the flange cover plates is satisfactory.
26
3
3.4.3