Question

For the rivetted joint B as shown in the figure, the resulting shear load on heavily loaded rivet is

• A. 15 kN
• B. 15.81 kN
• C. 5 kN
• D. 20 kN

Answer 1

The correct option is B 15.81 kN

Primary shear load in each rivet

$P_{S1}=\frac{10}{2}\text{= 5 kN}$


($P_{s_2}$) will be same for both rivet A and B, both are loaded with same shear force.

$\text{Secondary shear load,}$

$P_{s_2}=\frac{Pl}{r_1^2+r_2^2}\times r_1$

$=\frac{10\times 75}{(25{)}^2+(25{)}^2}\times 25=15kN$

$R=\sqrt{P_{s1}^2+P_{s2}^2+2P_{s1}{P}_{s2}cos\theta }$

$=\sqrt{(5{)}^2+(15{)}^2+2\times 5\times 15\times cos{90}^{\circ }}$

$=15.87kN$