Civil Engineering - RCC Structures Design - Discussion

Discussion Forum : RCC Structures Design - Section 5 (Q.No. 7)
7.
An intermediate T-beam reinforced with two layers of tensile steel with clear cover 13 cm encasted with the floor of a hall 12 metres by 7 metres, is spaced at 3 metres from adjoining beams and if the width of the beam is 20 cm, the breadth of the flange is
300 cm
233 cm
176 cm
236 cm
255 cm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
14 comments Page 1 of 2.

Niranjan said:   1 decade ago
Kindly explain it.

Bittu said:   10 years ago
Please find it.

Hesham said:   9 years ago
Kindly explain it.

Er charu said:   9 years ago
I want Explanation. Please explain this.

Akiyo said:   9 years ago
Please solve and explain clearly.
(1)

Snehal wankhede said:   9 years ago
Breadth of flange (bf) > width of beam(bw). So answer is not option C.

Snehal wankhede said:   9 years ago
For Isolated T beams,

Bf = bw + L/ (L/b + 4) = 200 + 7000/ (7000/200 + 4) = 379.5 mm < b (200 mm) as per IS code.

So the only option is C = 176 M.

I didn't get it either but it is as per IS CODE 456 : 2000.
(2)

Pranab said:   9 years ago
Breadth of T-beam is:

1) 1/3 of eff span.
2) center to center distance of beam.
3) 12x depth of flange + width of the beam.

Which ever is less
Answer is;
As per 1) (300-20+13)/3 = 97.66 cm.
As per 2) 300 cm.
As per 3) 12x13+20 = 176 cm.
According to the conditions less is 97.66 cm.
(1)

Monu said:   8 years ago
Thank you @Pranab.

Abhishek said:   7 years ago
It should be an isolated T beam.


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