# Civil Engineering - RCC Structures Design - Discussion

Discussion Forum : RCC Structures Design - Section 2 (Q.No. 1)
1.
A T-beam behaves as a rectangular beam of a width equal to its flange if its neutral axis
remains within the flange
remains below the slab
coincides the geometrical centre of the beam
none of these.
Explanation:
No answer description is available. Let's discuss.
Discussion:
7 comments Page 1 of 1.

Lalit said:   2 years ago
1) When NA lies in flange then;

The stress block dig above NA is a rectangular parabola. So stress distribution is linear
TF= 0.87fy.Ast.
CF= 0.36.fck.bf.

(2) when NA falls in Web.
Stress in the flange is not uniform so analysis becomes difficult;
-Stress changes the constant value after the depth (3/7).
(1)

Sourav said:   6 years ago
When the neutral axis lies within the flange then we design the beam as a singly reinforced section.

Shah fahad said:   7 years ago
When the neutral axis lies in the flange section, not in the web we have to design it as a simple rectangular beam as the compression block is limited in the flanges.

Ahsaan said:   7 years ago
When the neutral axis remains in a flange, the lower part of N.A we do not consider in design so the upper part of N.A is like a rectangular.

Suman Das said:   7 years ago
Give the explanation.

Nhoek ren said:   8 years ago
Give me explanation with figure or picture.

Nira said:   9 years ago
Explain it.