Steel Designers Manual - TheBestFriend.org

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Steel Designers' Manual - 6th Edition (2003)
742 Design of connections
End projection t1 approx. 10mm
Length of cleat, I > 0.60
Face of
Hole diameter, Oh
[H Dhd+2mmford24mm
Oh = d + 3mm ford > 24mm
Gauge, g
Cleat thickness, t 125mm < g < 140mm
= 8mm for UB5 up to 457 x 191
t = 10mm for UB5 533 x210 and over
1I1iiIIII'
Bolt diameter, d
Fig. 26.14 Essential detailing requirements for beam-to-beam double angle web cleat
connections
cross centres. Normally end-plates no more than 8 mm or 10 mm thick should be
used.
The essential detailing requirements for these connections are shown in Fig. 26.16
and Table 26.7 gives the design checks. The procedure in Table 26.7 can used for
both partial depth and full depth end-plates.
26.2.5.3 Fin plate connections
Typical bolted fin plate connections are shown in Figs 26.17 and 26.18. The comments
made in section 26.2.4.3 on beam-to-column fin plates apply to beam-to-beam
fin plates. In addition, a beam-to-beam fin plate connection requires either a long
fin plate as shown in Fig. 26.18 or a notched beam as shown in Fig. 26.17. The
designer must therefore choose between the reduced capacity of a long fin plate
and the reduced capacity of a notched beam. Another minor consideration is the
torsion induced when fin plates are attached to one side of the supported beam web.
However, tests have shown that in these cases the torsional moments are small and
can be neglected.
The essential detailing requirements for beam-to-beam fin plate connections are
shown in Fig. 26.19 and the detailed design checks are given in Table 26.8.The design
procedures given in Table 26.8 can be applied to supporting beams loaded from one
or two sides.