Question

Horizontal thrust developed in the two hinged semicircular arch of radius 18 m loaded over left half span with an UDL of 20 kN/m is

• A. 152.8.kN
• B. 76.4 kN
• C. 22.5 kN
• D. 45 kN

Answer 1

The correct option is B 76.4 kN

$H=\frac{2}{3}\left(\frac{wR}{\pi }\right)=\frac{2}{3}\left(\frac{20\times 18}{\pi }\right)$
$\Rightarrow H=76.4kN$