Civil Engineering - Theory of Structures - Discussion

Discussion Forum : Theory of Structures - Section 1 (Q.No. 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.
Answer: Option
No answer description is available. Let's discuss.
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
The Right answer is 1:1:1.

Akansha said:   2 years ago
No @Prachi

The right answer is 1:1:1.

Pramit Samanta said:   3 years ago

That is for the parabolic arch, not semicircular.

Akshaya said:   3 years ago
Thank you @Prachi.

Prachi said:   4 years ago
General equation of horizontal thrust for this condition will be;
H = Wl/4h.
h = l/2.
= 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
H Not depend on radius.

Monika said:   5 years ago
Which is the correct answer? Please explain me.

Apcivilian said:   6 years ago
Agree the given answer is wrong.

It doesn't depend on radius.

So, the answer is D.

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