Civil Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 1 (Q.No. 23)
23.
The slenderness ratio of a vertical column of a square cross-section of 2.5 cm sides and 300 cm length, is
Discussion:
33 comments Page 4 of 4.
Pradhyumna said:
1 decade ago
Dear @Kaushal, clear the definition first.
Slenderness ratio = Unsupported length of column/minimum radius of gyration of cross-section.
Hence, SR = 300/rad. of gyration.
= 300/ sq.root of ((2.5^4/(12*2.5^2))).
= 415.692.
= 416.
Slenderness ratio = Unsupported length of column/minimum radius of gyration of cross-section.
Hence, SR = 300/rad. of gyration.
= 300/ sq.root of ((2.5^4/(12*2.5^2))).
= 415.692.
= 416.
Raju said:
1 decade ago
kl = 300.
r = (i%a)0.5.
Slender ratio = kl%r.
i = moment of inertia = b*d3%12.
a = cross section area = 2.2*2.5.
r = (i%a)0.5.
Slender ratio = kl%r.
i = moment of inertia = b*d3%12.
a = cross section area = 2.2*2.5.
Kaushal said:
1 decade ago
According to me, Slenderness ratio is kl/b. where k is length factor, l is the length of column and b is the width.
Let us suppose k = 1 (pin jointed both sides).
Slenderness ratio = 1*300/2.5 = 120.
How could answer be 416?
Let us suppose k = 1 (pin jointed both sides).
Slenderness ratio = 1*300/2.5 = 120.
How could answer be 416?
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