Slab Design

Design of simply supported one simply supported effective span ( m ) 4

ive oad ( %3 ' m 2) 2.5

lation between slab dept !

inimum steel 8rovided ( $.%.)

Steel 8rovided ($.%.)

4loor 4inis Concrete ( %3'm2) 1

M15

175

"

Develop ment engt Sear Cec# cec# ( $.%.)

Steel

Fe415 200

Slab Dept( mm ) 5e6uired 170.27

Deflection Cec#

ain ar Crac#ing Cec#

( $.%.)

( $.%.)

( $.%.)

Design of Simply supported two way s simply supported Sort side widt

ong side lengt

Concrete

Steel

ive oad ( %3 ' m 2)

4loor 4inis ( %3'm2)

4.3

6.55

M15

Fe415

2

1

l&

ly

ly ' l&

.

*.7+

1.,

say 4.5

inimum steel 8rovided ($.%.)

dsort 8rovided -

2

( $.%.)

wo way Slab 6.75


lation between slab dept !

Develop ment engt Sear Cec# cec# ( $.%.) ( $.%.)

175

"

Deflection Cec# ( $.%.)

ain ar Crac#ing Cec# ( $.%.)

200

Design of Cantilever one way slab Slab S1 Cantilever Slab S2

lengt

lengt

Concrete

Steel

M15 Fe250 at the "ree end o" sla $ 1 %concrete parapet o" 1.2

inimum steel 8rovided $.%.

3


slab S2

live load 2

75

slab S1 live

load( alcon y) 3

mm thick and

Develop ment Developme op ( 9 ) Steel Sear Cec# in engt nt engt 8rovided Span / cec# : cec# :  / $.%.

( $.%.)

Span / nterpolation between slab dept ! Span C nterpolation between slab dept !

( $.%.)

( $.%.)

#N! #N!

" "

Design of Continuous $ne9way sla

Slab S1 lengt 3

Slab S2

lengt 3

/st 5e6. mm2 27' 216 327 2+5

Sear Cec# at support + "  ( $.%.)

Concrete

Steel

M15

Fe415

live

slab

load 3

4loor 4inis ( %3'm2) 1

Steel 8rovided 10 mm ( ) !t point 1& 17'

440 114

' mm cc * 2+3 ($.%.)

mm ( )

220

mm cc

' !t point 2& 10 !t point 3& 10 !t point 4&

22' mm ( ) 357 mm ( ) 357

mm2. 220 mm2. 220 mm2.

($.%.)

mm cc ($.%.)

( $.%.)

( $.%.)

Span / nterpolation between slab dept ! Span C nterpolation between slab dept !

spacin/ o" ar & a

mm cc ($.%.)

Develop Sear Development ment Deflection Cec# at engt engt Cec# in support 1 " cec# : / cec# : Span / 2  ( $.%.)



Deflection Cec# in Span C

($.%.)

($.%.)

#N! #N!

" "

Design of Continuous

sort span ;&

long span ; y

Concrete

Steel

ive oad ( %3 ' m 2)

4loor 4inis ( %3'm2)

5

5

M15

Fe415

3

1

-

2

ly ' l& 1.0

,-o adacent ed/es dis ,-o adacent ed/es

wo way Slab

nterpolation o"   coe""icient   "or l y  l et-een

1



1.1

nterpolation o" *coe""icient   "or l y  l et-een

/st 5e6. mm2 24+ 24+ 312 312

Sear Cec# at support + " 

( $.%.)

1



1.1

Steel 8rovided '  *  short '  *  8on/ '    short '    8on/

mm ( ) 264 mm ( ) 264 mm ( ) 335 mm ( ) 335

1+0 mm2. 1+0 mm2. 150 mm2. 150 mm2.

mm cc * spacin/ o" ar & a

($.%.)

mm cc ($.%.)


mm cc spacin/ o" ar & a

($.%.)

mm cc spacin/ o" ar & a

($.%.)

Sear Development Deflectio ain ar Cec# at engt n Cec# Crac#ing support 1 " cec# in Cec# 2 ( $.%.)

( $.%.)

( $.%.)

/t point 1 " + nterpolation slab dept between /t point  " , nterpolation slab dept between

Distribution ar Crac#ing Cec#

( $.%.)

( $.%.)

150 150

" "

9escription 4or ma#ing is <&cel Seet wor#able=readable 4irst of all >ou ave to Different ype of Slab Design.n tis <&cel Seet Seen >ellow Cell is te e&t.and e /utomatic Design i#e Slab Dept = Spacing for main steel is design is Cec#ed 4or Different Criteria. f any cec# seen in e&cel or ar Dia. to ma#e design o#.

way slab Slab Dept( mm ) 8rovided 1'0

cover(mm) 1,

Spacing C'C ain ar Dia. 5e6uired

10

17.1+

Spacing C'C 8rovided

Distribution ar Dia.

'

170.00

( /lternate ent ?p)

Distribution ar Crac#ing Cec# ( $.%.)

lab Slab Dept( mm ) 8rovided 1'0

cover(mm) 1,

ain ar Dia. Spacing C'C ( sort ) 5e6uired

10


17*.*0

Distribution ar Dia.(ong )

'

170

(ent up 3ot 8ro dlong provided

B&

By

( $.%.)

0.10

0.0*


4loor 4inis ( %3'm2) 1

1 Sear Cec# in Span C ( $.%.)

#N! #N!

Slab cover(mm) Dept( mm ) 8rovided 1,

120

m hi/h.

ain ar Dia.

10

Spacing C'C 5e6uired 1A.A1

Spacing C'C 8rovided 170

( alternate bent up )

d 8rovided

Deflection Cec# in Span /

Deflection Cec# in Span C

( $.%.)

( $.%.)

( $.%.)

$la $2

continuous

cantile:er

ain ar Crac#ing Cec# ( $.%.) $la $1

cover(mm)

Slab Dept( mm ) 8rovided

d 8rovided

1,

110

( $.%.)

!rea o" one ar &

7+

mm2

!rea o" one ar & mm ( )

50 440

mm2 mm cc

!rea o" one ar &

50


6

7+

;al" 10 (*hal" ' ( 2'2 1'0

7+

233

($.%.)

($.%.)

#N! #N!

continuous

mm cc

mm cc

mm2

ent ?p 3ot 8 240

mm cc

266

mm cc

mm2

rea o" one ar  1000  reuired area in m2  m.&

Distributio ain ar Crac#ing n ar Cec# Crac#ing Cec#

160

mm2


!rea o" one ar &

171


spacin/ o" ar & area o" one ar  1000  reuired a


!rea o" one ar &

Spacing C'C 5e6uired

inimum steel 8rovided for ain steel

inimum steel 8rovided for Distribution steel

$.%.

$.%.

inimum steel 8rovided at
wo9way slab

cover(mm)

1,

/t Slab Discontinue Spacing C'C Dept( mm edge top ar 5e6uired ) 8rovided min. steel 150

'

ontinuous    moment at continuous ed/e discontinuous  *  moment at midspan

d8rovided for (  )

dprovided for ( 9 )

27A.11


260

n edge strip ar minimum steel

' engt of to

($.%.)

($.%.)

!rea o" one ar &

50

mm2


!rea o" one ar &

50 50 50

inimum steel 8rovided for sort span( 9 ) $.%.

$.%.

175 175

continuous

mm cc

161

mm cc

161

mm cc

mm2


inimum steel 8rovided for sort span (  )

202

mm2


!rea o" one ar &

mm cc

mm2


!rea o" one ar &

202

inimum steel 8rovided at discontinuou s edge " edge strip $.%.

inimum inimum steel steel 8rovided for 8rovided for long span long span( 9 ) () $.%.

$.%.

done te macro
ent ?p not 8

Spacing C'C 5e6uired 2++


'

mm 9ia )

230 mm c

230.00 1'0 mm

400 mm

mm Dia @ 170 mm c/ 10  !lternate
Spacing C'C 5e6uired 2++

Spacing C'C 8rovided ' mm Dia @ 230 mm c

230

ided)

450 mm

10mm Dia @ 170 mm c/ ro:ided

350

op( 9 ) steel Dia. in cantilever



10

+A.2

340

12

+2.++

340


4.3 m

Distributio Spacing Spacing C'C n ar Dia. C'C 8rovided (ong ) 5e6uired

6 ( <&tra )

1,7

150

/t
'

Spacing C'C 5e6uired ++

rea in m2  m.&

Spacing C'C 8rovided 340

'

+00 +00 mm Dia @ 340 mm c/c 450 10 mm Dia @ 220 mm c/c 6 mm Dia @ 160 mm c/

1 1

rovided 10

+'

2

mm Dia @

440 mm c/c

mm Dia @

440 mm c/c 3

'

mm Dia @

3 m

3 m ro:ided


27A.11


260

rsional reinforcement !

Spacing orsion steel at C'C Corner / 5e6uired

Spacing orsion steel C'C at Corner  8rovided

'

2*A

260

1000



2000

' mm

' mm Dia @ 270 mm c/c

Spacing C'C 5e6uired 27A

' mm Dia @ 260 mm c/c

' '

500

mm Di mm Di 1500

'

mm Dia @ 1+0 mm c/c

'

mm Dia @ 1+0 mm c/c

ovided 5 m

'

mm Dia @

270 mm c/c

' mm Dia @ 260 mm c/c 500

' '

mm Dia @ 1+0 mm c/c mm Dia @ 1+0 mm c/c 5 m

' mm Di ' mm Di 1500

?rade M15 M20

c

M25 M30 M35 400 mm

M40

c

450 mm

350

10 mm Dia @ 12 mm Dia @

+

340 mm cc 340 mm c/c ( Extra ) 1.2 m

300

mm

600

mm

10 mm Dia @ 170 mm cc  alternate ent up 

6

3 m

+00

+00

10 mm Dia @ 220 mm c/c

220mm c/c

4


260


'

Spacing Spacing C'C C'C 5e6uired 8rovided 27A

270

a@ a@

150 mm c/c 150 mm c/c 1500

v

@

150 mm c/c

@

150 mm c/c 1500

v

steel Fe250

dia. 6

$la thickness 150 simply supported

Fe415

'

cantile:er

175

Fe500 Fe550

10 12

continuous

200 225

14 250

16 1' 20 25

1.2 m

mm Dia @ 150 mm c/c

275 300

1.2 m.

nterior panel ( 9 ) moment at continuous edge nterior panel (  ) moment at mid9span

ly'l& 1.0

$ne sort edge discontinuous ( 9 ) moment at

1.1

$ne sort edge discontinuous (  ) moment at m $ne long edge discontinuous ( 9 ) moment a

1.2 1.+

$ne long edge discontinuous (  ) moment at mi

1.

wo adacent edges discontinuous ( 9 )

wo adacent edges discontinuous (  ) momen wo sort edges discontinuous ( 9 ) moment

wo sort edges discontinuous (  ) moment at wo long edges discontinuous ( 9 ) moment a

wo long edges discontinuous (  ) moment at m one long edge continuous ( 9 ) moment at conti

one long edge continuous (  ) moment at mid9sp one sort edge continuous ( 9 ) moment at con

one sort edge continuous (  ) moment at mid9s 4our9edges discontinuous (  ) moment at mid9sp

1., 1.7, 2

Slab Design

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