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Web Crippling

A rolled I - ...

Question

A rolled I - section beam is supported on a 70 mm wide bearing plate as shown in the figure. The thickness of flange and web of the I - section are 22 mm and 10 mm, respectively. Root radius of the I - section is 10 mm.
$Assume material yield stress, f_{y} = 250 M P a and partial safety factor for material γ_{m 0} = 1.1$ .
As per IS 800 : 2007, the web bearing strength of the beam will be

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Solution

Web bearing strength
$= [b + 2.5 (t_{f} + R)] \times t_{w} \times \frac{f_{y}}{γ_{m 0}}$
$= [70 + 2.5 (22 + 10)] \times 10 \times \frac{250}{1.1} \times 10^{- 3} k N$
$= 340.91 k N$

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