# Civil Engineering - Theory of Structures - Discussion

Discussion Forum : Theory of Structures - Section 1 (Q.No. 39)
39.
There are two hinged semicircular arches A, B and C of radii 5 m, 7.5 m and 10 m respectively and each carries a concentrated load W at their crowns. The horizontal thrust at their supports will be in the ratio of
1 : 1 1/2 : 2
2 : 1 1/2 : 1
1 : 1 : 2
none of these.
Explanation:
No answer description is available. Let's discuss.
Discussion:
15 comments Page 1 of 2.

Ravi Gupta said:   9 months ago
Doesn't depend upon the radius due to the concentrated load applied in a semicircular arch.

B.Singh said:   2 years ago

Akansha said:   2 years ago
No @Prachi

Pramit Samanta said:   3 years ago
@Prachi.

That is for the parabolic arch, not semicircular.

Akshaya said:   3 years ago
Thank you @Prachi.
(1)

Prachi said:   4 years ago
General equation of horizontal thrust for this condition will be;
H = Wl/4h.
h = l/2.
5/2.5:7.5/3.75:10/5.
= 1:1:2.

Parvat kumar said:   4 years ago
Three hinged arches h is independent of radius hence ratio must be 1:1:1.

Pankaj said:   5 years ago
1:1:1.
H=w/π.

Monika said:   5 years ago