# Civil Engineering - RCC Structures Design - Discussion

### Discussion :: RCC Structures Design - Section 1 (Q.No.23)

23.

The effective span of a simply supported slab, is

 [A]. distance between the centres of the bearings [B]. clear distance between the inner faces of the walls plus twice the thickness of the wall [C]. clear span plus effective depth of the slab [D]. none of these.

Explanation:

No answer description available for this question.

 Kishore said: (Apr 18, 2013) Clear distance between the inner faces of the walls plus HALF the thickness of the wall. Clear span plus effective depth of the slab.

 Mahesh Satre said: (Oct 15, 2013) Clear span plus effective depth of slab.

 Shashi said: (Jan 24, 2014) Clear span plus, half thickness of both supports & clear span plus effective depth of slab whichever is less.

 Suresh.S said: (Mar 1, 2014) Clear span plus effective depth of slab.

 Anuj Kumar said: (Apr 3, 2014) Clear span+half of thickness of both supports. Or clear span plus effective depth of slab, whichever is less.

 Muthumadathi said: (Jul 16, 2014) Clear span+half of thickness of both supports. Or clear span plus effective depth of slab, whichever is less.

 Mahesh Katkar said: (Sep 27, 2014) Clear span+half of thickness of both supports. Or clear span plus effective depth of slab, whichever is less.

 Rahul Malik said: (Apr 20, 2015) Clear span plus half of thickness of both supports or clear span plus effective depth of slab, whichever is less.

 Vasanth said: (Jul 31, 2015) Clear span plus one width of the slab.

 Piyush Singh said: (Sep 3, 2015) It should be either, A) Clear span + effective depth of the slab. B) Or Clear Span + Width of the support (wall or column) whichever is less.

 Snehal said: (Sep 15, 2015) L efficient is min of: 1. Clear span + efficient depth of slab. 2. Clear span + 2*(half of width of column).

 Dileep said: (Oct 9, 2015) The effective span is least of below. 1. Clear span+Half of width of bearings. 2. Clear span+Effective depth.

 Ravi said: (Nov 17, 2015) Clause 22.2 (a) is 456.

 Saurabh said: (May 20, 2016) I am confused and I search with google. 1. Clear span + efficient depth of the slab. 2. Clear span + 2 * (half of width of column).

 Lakshay Gupta said: (Aug 5, 2016) The correct answer is clear span plus effective depth of the slab.

 Yaregal said: (Aug 24, 2016) I agree with you @Saurabh.

 Deepak Meena said: (Sep 26, 2016) I too think it is Clear span plus effective depth of slab.

 Subhas said: (Nov 9, 2016) It should be option C. We adopt the lesser value of the following as effective span. 1. Clear span + Effective depth. 2. Clear span + 2 (0.5 * thickness of wall).

 Baloch said: (Nov 16, 2016) Effective Span of the slab is C/C distance between supports or [C]. Clear span plus the effective depth of the slab.

 Ravi said: (Dec 7, 2016) The effective span is least of below. 1. Clear span + Half of width of bearings. 2. Clear span + Effective depth.

 Bhart Dholani said: (Jan 7, 2017) clear span +d. clear span +w. Which is less use (d :d/2 + d/2).

 Bhaskar Manna said: (May 18, 2017) Option C is the correct answer. P

 Muzammil said: (Jul 24, 2017) Yes, the right answer is C.

 Ayush said: (Aug 10, 2017) A is the correct answer.

 Bhimappa said: (Aug 28, 2017) D is the correct answer.

 Ankush said: (Sep 5, 2017) A is the correct answer because in case of same bearing width you can apply this but it does not satisfy in case of different bearing width which was not mentioned in question can anyone discuss this?

 Sunil said: (Jan 9, 2018) The Correct answer is A.

 Pooja said: (Jan 29, 2018) Option A is correct. I agree.

 Abhishek said: (Feb 23, 2018) Answer is none of the above as to find out the effective span two calculations are required and smaller value will be treated as effective span.

 Deepak Suthar said: (Mar 20, 2018) C is the right answer as per IS 456:2000.

 Biyanka Nikki Bivera said: (Apr 7, 2018) I too think that the right answer is option C.

 Rishi Sattawan said: (Jun 6, 2018) Yes, the right answer is C.

 Sameer Sopori said: (Sep 15, 2018) In case of load on simply supported slab the effective length will be considered from the one edge to another edge of the slab because the slab is not continuous (in simply supported slab the ends will be considered as free or pinned But not fixed or continuous). So the whole length of the slab will be affected by the load. So the effective length of the slab is equal to internal wall to wall distance + the length of the slab which is mounted on the wall on both sides.

 Moni said: (Sep 21, 2018) It's clear span+depth of slab or Clear span+wall thickness. Least of two will be adopted for design consideration.

 Khaled said: (Feb 16, 2019) I think it is Clear span + effective depth of the slab.

 Tushar Patel said: (Feb 28, 2019) 1) Clear distance+ effective depth. 2) Centre to centre distance.

 Aslam said: (May 9, 2019) A as per IRC-5 for Bridges.

 Shrikant Datey said: (Sep 17, 2019) Clear span + effective depth of the slab. Clear Span + Width of the support (wall or column) whichever is less. Or Clear Span + 2 * Half Width of the support (wall or column).