Civil Engineering - Steel Structure Design - Discussion

Discussion Forum : Steel Structure Design - Section 3 (Q.No. 20)
20.
The safe working pressure for a spherical vessel 1.5 m diameter and having 1.5 cm thick wall not to exceed tensile stress 50kg/cm2 , is
16 kg/cm2
18 kg/cm2
20 kg/cm2
22 kg/cm2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 2 of 2.

Pradeep Singh said:   5 years ago
Longitudinal stress = pd/4t , p=50,d=1.5m, t=1.5cm.
50*1.5/4*1.5=25 for safe partial safety factor 1.25 then 25/1.25=20.
(1)

Pradeep Singh said:   5 years ago
Hoop stress = pd/2t.
50*1.5/2*1.5 = 25 partial safety factor 1.25.
25/1.25 = 20.

Bis said:   4 years ago
The diameter is 2.5cm.
(1)

Muhammd usman said:   3 years ago
Pd/4t = T,
P=?
D=1.5m = 150cm.
t = 1.5cm.
t = 50.

By solving.

50 * 4 * 1.5/150 = 2kg/cm2.
The date is not correct,
If t = 500 or d=.15m,
Then answer will be equal to 20.
(2)


Post your comments here:

Your comments will be displayed after verification.