# Design of Slab

By Amritansh Mishra|Updated : December 2nd, 2021

Through Champion Study Plan for GATE Civil Engineering (CE) 2022, we are providing Design of Slab study notes and other important materials on every topic of each subject.

These topic-wise study notes are useful for the preparation of various upcoming exams like GATE CivilIESBARCISROSSC-JEState Engineering Services examinations and other important upcoming competitive exams.

The article contains fundamental notes on the "Design of Slab"  topic of the "Design of Concrete Structures" subject.

## Design of Slab

### One way slab

(i)

where, ly = length of longer span

lx = length of shorter span

(ii) Slab is supported only on two edges.

Design of One way slab

### Two way slab

(i)

ly = length of longer span

lx = length of shorter span

(ii) Slab is supported on all edges.

Design of two way slab

1. Grasoff Ranking method
It is used for corners not held down position.
It is purely simply supported case.

(i)

(ii) Moment in x-direction

Moment in y-direction

(iii) Shear force

At shorter edge (VX)

At longer edge (Vy)

1. Design of slab with corner held down position

(a) Pigeauds method:

where, the values of  are read from table

(b) I.S. code method

The values of  read from table (page 91, IS : 456-2000)

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