Two Way RCC Slab Designer | IS Code

This tool helps you to Design two way slab based on IS Code 456:2000.

Fill all red Coloured details below & Proceed

Types of Slab:

Shorter Clear Span (lx): meter

Longer Clear Span (ly): meter

Width of Beam in Shorter Span: mm

Width of Beam in Longer Span mm

Basic Value (k) (35 to 40 Reccomended)

Reccomended Effective Depth of slab mm
……………………………………………………

Assume Effective Depth of slab mm

Input Clear Cover of Slab: mm

Overall Depth of slab mm

Effective Span (lx) m

Effective Span (ly) m

Status

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Live Load: kN/m²

Floor finish Load: kN/m²

Self load taken kN/m²

Total Factored load kN/m²
……………………………………………………

Bending moment coefficient (Table-26, IS 456:2000)
*Input Values Below according to (ly/ly) and Type of Slab Selected from IS Code Table:
See Table

(ly/lx) is between: &

αx(-)l: αx(-)h: αy(-) :

αx(+)l: αx(+)h: αy(+) :

(+)ve Moment in Shorter Span: kN-m

(-)ve Moment in Shorter Span: kN-m

(+)ve Moment in Longer Span: kN-m

(-)ve Moment in Longer Span: kN-m

Maximum Moment: kN-m

Shear Force (Vu): kN-m

……………………………………………………

Check for Depth of Slab

Select Rebar

Strength of Concrete (fck): M

Minimum Depth of slab required: mm

Depth of slab Provided: mm

Status

xu,max/d: mm

Mu,lim: kN-m
……………………………………………………

Design of reinforcement (-ve) Along x-direction

Strength of Rebar (fy):

Area of steel Required: m²

……………………………………………………

Assume Dia of Bars: mm

Spacing of Rebar required: mm

……………………………………………………

Provided Spacing of Rebar: mm

Area of steel provided: mm²

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Design of reinforcement (-ve) Along y-direction

Area of steel Required: m²

……………………………………………………
Assume Dia of Bars: mm

Spacing of Rebar required: mm

……………………………………………………

Provided Spacing of Rebar: mm

Area of steel provided: mm²

……………………………………………………

Design of reinforcement (+ve) Along x-direction

Area of steel Required: mm²

……………………………………………………

Assume Dia of Bars: mm

Spacing of Rebar required: mm

……………………………………………………

Provided Spacing of Rebar: mm

Area of steel provided: mm²

……………………………………………………

Design of reinforcement (+ve) Along y-direction

Area of steel Required: m²

……………………………………………………

Assume Dia of Bars: mm

Spacing of Rebar required: mm

……………………………………………………

Provided Spacing of Rebar: mm

Area of steel provided: mm²

……………………………………………………

Check for Shear

𝜏v : N/mm²

Percentage of reinforcement (100*Ast/bd): %

Grade of Concrete: M

……………………………………………………

*Input Values Below according to (100*Ast/bd) & Grade of Concrete from IS Code Table:
𝜏c (From Table-19, IS 456:2000): See Table

P1 M1

P2 M2

*Input Values Below according to Depth of Slab from IS Code Table:
Ks (From clause 40.2.1, IS 456:2000): See Table

𝜏c’ N/mm²

Status
……………………………………………………

Check for Deflection

(l/d) Provided N/mm²

Steel stress of service load(fs) :

Percentage of reinforcement:

……………………………………………………

*Input Values Below according to Reinforcement Provided from IS Code Figure:
Modification factor (k) (From figure-4, IS 456:2000):
See Figure

Allowable (l/d) ratio:

Status

Tools to Design two way slab based on IS Code

How to use slab designer tool?

Fill all the input boxes with a red-colored line and then press proceed button from starting to end.
All the red colored lines are to be filled according to requirement and IS Code 456:2000.
At last check for shear, deflection, and depth of slab are ok or not.
If you passed all checks, then make detailing of slab reinforcement according to negative and positive reinforcement provided by the tool above.

Two Way RCC Slab Designer | IS Code – 456:2000