Q. For the same sectional area which beam will deflect least:

A
T- beam
B
Rectangular beam
C
Circular beam
D
I- beam
Solution:

Since the T beam is cast monolithically with the slab, the flange also takes up the compressive stresses which mean, it will be more effective in resisting the sagging moment acting on the beam. For larger spans, T beams are usually preferred rather than rectangular beam as the deflection is reduced to a good extent.

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