Question

A point load is acting on a bearing plate of 70 mm width as shown in the figure. Thickness of flange and web of the I- section are 20 mm and 8 mm respectively. Root radius of I-section is 10 mm. Assume;
Material yield stress,
$f_y=250MPa$
and partial safety factor for material
${\gamma }_{m_0=}\mathrm{1.1.}$


As per IS 800 : 2007, the web bearing strength of the beam against web crippling will be __________ kN.

• A. 400
• B. 352
• C. 550
• D. 263.63

Answer 1

The correct option is A 400

Web bearing strength
$=[b+2\times 2.5(f_f+R\left)\right]\times t_w\times \frac{f_y}{{\gamma }_{m_0}}$
$=[70+2\times 2.5(20+10\left)\right]\times 8\times \frac{250}{1.1}\times {10}^{-3}kN$
$=400kN$