Civil Engineering - RCC Structures Design - Discussion


The width of the flange of a T-beam should be less than

[A]. one-third of the effective span of the T-beam
[B]. distance between the centres of T-beam
[C]. breadth of the rib plus twelve times the thickness of the slab
[D]. least of the above.

Answer: Option D


No answer description available for this question.

Keshav said: (Sep 4, 2014)  
Least of the above means what?

Priyanka said: (Sep 25, 2014)  
It means effective width should not be less than least of all the above values.

Atultripathi said: (Jun 8, 2015)  
It means all of the above are correct but we have to take the smallest value.

Ashish said: (Sep 23, 2015)  
Meaning of flange in t bar.

Ritesh said: (Oct 19, 2015)  
In which clause of IS 456 it is given?

Srinu said: (Oct 21, 2015)  
The upper part '-' of is flange.

Ravi said: (Nov 15, 2015)  
This answer is according to CP114-1957 i.e. British code of practice.

Ddepak said: (Dec 17, 2015)  
B(eff) = (Lo/6)+bw+6Df.

Lo = Effective span length.
Bw = Width of rib.
Df = Depth of flange.

Bhushan said: (Feb 23, 2016)  
I am not understand.

Yatin Mayekar said: (May 6, 2016)  
Least of above means we have to choose the smallest value of all the above.

Mayur Patil said: (Nov 20, 2016)  
According to me, the correct answer is B.

Atul said: (Dec 7, 2016)  
And according to me, ' the correct answer is A' only.

Shambhoo Kant Jha said: (Feb 17, 2017)  
23.1.2 Effective Width of Flange.

In the absence of more accurate determination. The effective width of the flange may be taken as the following but in no case greater than the breadth of the web plus half the sum of the clear distances to the adjacent beams on either side.
a) For T-beams, B(eff) = (Lo/6)+bw+6Df.
Lo = Effective span length.
Bw = Width of rib.
Df = Depth of flange.

Pawan130895 said: (Mar 15, 2017)  
Least of the above means what?


Makar said: (Apr 26, 2017)  
The width of flange means the t section above horizontal member and the flange is always less than 1/3 and distance.

Sruthy said: (Jun 25, 2017)  
Least of above means?

Ganesh said: (Dec 20, 2017)  
It should be l/12+bw+3Df.

Eddy said: (Jan 12, 2018)  
B is correct.

Hemant Sharma said: (Mar 4, 2018)  
1 Bf=Lo/6+bw+6df.

2 Centre to centre distance between adjacent slab,
Minimum of both of them.
So correct answer is B.

Akshay said: (Sep 11, 2018)  
Given answer is correct as per IS 456-1978.

Tushar Methiya said: (Jun 19, 2019)  
b(eff) = (eff span/6) + bw + 6Df.

Sameer said: (Feb 23, 2020)  
The answer should be greatest of the above.

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