Copy of flatslab~design (SSP)_modified

JOB NO. : T"TL# %BJ#CT P*OJ#CT

: : :

3!15

$#%"&N OF FL'T%L'B ("T) $*OP+P'N#LTO B% ,1!!: P'*T 1+ 1--

$esigned :

LTC

$ate $ate :

1+% 1+%e e+0 +0!1 !1 

T2P"C'L P'N#L ,.!4  ,.!4

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LTC

$ate :

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%O&O $#P'*T4#NT'L %TO*#

Page No. :

Of

:

Written by Ir. T.C. LIM, Nov. 98

1.0 1.0

FLA FLAT SLAB SLAB DESI DESIGN GN PARAME ARAMETE TERS RS Con79ete st9engt6 *einfo97ement st9engt6 $ensit= of 7on79ete Con79ete 7o?e9

7; > f 7; f = > > 7> > > > > > > eff > > Lx > L= > 6>

@ soffit of d9o anel @ soffit of flat slab @ to of flat slab %;e9+imosed $ead Load on flat slab Li?e load on flat slab ltimate load fa7to9 fo9 Li?e load $ead load $esign effe7ti?e s6ea9 fo97es fa7to9 :+ Panel $imensionA %6o9t san Long san T6i78ness of flat slab Plan a9ea of d9o anel > $9o+ x $9o+2 > 3.!!! m x 3.!!! m

2.0 2.0

3! ! 0 5 ! ! ! 1!! 1. 1. 1.15 ,. ,. !!

' >

N/mm N/mm N/mm mm mm mm 8N/m 8N/m

$9o lengt6 m;st not < Lx/3

 $9o+2 $9o+

4iddle Col;mn %t9i

TYPI TYPICA CAL L PAN PANEL EL 8.40 8.40 M X 8.4 8.40 0M

$9o anel :+ to steel bottom steel Flat slab :+ to steel bottom steel

ba9 sie 05 mm mm 0! mm mm 0! mm mm 30 mm

6 d9o

d6

!

L7 L6o Col;mn 6ead

d > 6+7+1.5dia 100.5 mm mm 13-5 mm mm 53! mm mm 510 mm

Load Load Case Case $;e to to %elf %elf Ieig6 Ieig6tt H %;e9i %;e9imo mosed sed dead dead load load H li?e li?e load load :+ :+ (eig6t of d9o anel H slab > 0.551

H

!.

ltimate doInIa9d 9ess;9e in7l;ding slab Ieig6t n> 1. x 1!! H  1.1551

0

x H

> 1.1551 8N/m

!.!! E x 1.!

>

1, 8N/m

FLA FLAT SLA SLAB B ANAL ANALYSIS YSIS T6e T6e desig design n ;lti ;ltima mate te load load inte intens nsit it= = ltimate load e9 anel > 1, x ,.! x ,.! (idt6 of 7ol;mn st9i Iit6 d9o anel long sanE + m;st be  Lx/3 (idt6 of 7ol;mn st9i Iit6 d9o anel s6o9t sanE + m;st be  Lx/3 (idt6 of middle st9i Iit6 d9o anel long sanE (idt6 of middle st9i Iit6 d9o anel s6o9t sanE (idt6 of middle st9i Iit6o;t d9o anel long sanE (idt6 of middle st9i Iit6o;t d9o anel s6o9t sanE P9oo9tion of mid middle st9i Ii Iit6 d9o 9o an and Iit6o;t d9o lo long sanE P9oo9tion of of mi middle st st9i Ii Iit6 d9o d9o  an and Ii Iit6o;t d9 d9o s s6o9t sanE

a aE

Lx

L=

- m

L7 > ,!! mm % > 0 > ,!! mm % d6 > ! mm L6o > ,!! mm L6 max > ,!! mm soG L 6 > ,!! mm 67 > -!0. -!0.0 0 mm #ffe7ti?e diamete9 of 7ol;mn 6ead is 67 > L60/pE1/0 b;t not  Lx/ Fo9 long sanG #ffe7ti?e sanG L e > L1 + 067 /3 Le= > .-, m Fo9 s6o9t sanG Lex > .-, m Total t6i78ness t6i78ness of d9o anel > !! mm H -!! mm > 15!! m m

2.2. 2.2.1 1

Col;mn %t9i

Col;mn %t9i

m m mm

%ie of 7ol;mn %D;a9eE T=e of 7ol. 6ead 1 > fla9edG 0 > 9e7tang;la9E *e7tang;la9 7ol;mn 6ead $et6 of 7ol;mn 6ead Col;mn 6ead dimensionG !mm beloI t6e soffit of d9o anel L6 max > L7 H 0d 6 + !E T6e effe7ti?e L6 of 7ol;mn 6ead is t6e lesse9 of L L6o M L6 max

0.1

%t9i

LON& %P'N Code Coeff Total 4oment Col;mn st9i moment 4iddle st9i moment

T.C. Lim/Flatslab~design.xls

n> 1,. 1,.! ! 8N/m 8N/m F > 10-,.0 8N > 3.!!! m > 3.!!! m > 5.!! m > 5.!! m > .0!! m > .0!! m > 1.0, +++ *ef. Table 3.1, of B%,11!+1-- > 1.0, +++ *ef. Table 3.1, of B%,11!+1--

O;te9 s;o9t +!.! +!5! 8N 8Nm

#nd san !.!5 5- 8N 8Nm

Fi9st s;. inte9io9 +!.!, +,!, 8N 8Nm

"nte9io9 san !.!3 3- 8N 8Nm

"nte9io9 s;o9t +!.!3 +3- 8N 8Nm

1!! K +!5! 8Nm

0.1 K 30!! 8Nm

., K +5-!- 8Nm

0.1 K 0,, 8Nm

., K +30- 8Nm

! K ! 8Nm

5., K 3- 8Nm

30.1 K +0-- 8Nm

5., K 3-1 8Nm

30.1 K +0!5! 8Nm

Page 1 of 5

JOB NO. : : $#%"&N OF FL'T%L'B ("T) $*OP+P'N#LTO B% ,1!!: P'*T 1+ 1-- : T2P"C'L P'N#L ,.!4  ,.!4 P*OJ#CT : %O&O $#P'*T4#NT'L %TO*# T"TL#

%BJ#CT

3!15

$esigned :

LTC

$ate :

1+%e+0!1

C6e78ed :

LTC

$ate :

1+%e+0!1

Page No. :

Of

:


bE

%)O*T %P'N Code Coeff Total 4oment Col;mn st9i moment

O;te9 s;o9t +!.! +!5! 8Nm

#nd san !.!5 5- 8Nm

Fi9st s;. inte9io9 +!.!, +,!, 8Nm

"nte9io9 san !.!3 3- 8Nm

"nte9io9 s;o9t +!.!3 +3- 8Nm

1!! K +!5! 8Nm

0.1 K 30!! 8Nm

., K +5-!- 8Nm

0.1 K 0,, 8Nm

., K +30- 8Nm

! K ! 8Nm

5., K 3- 8Nm

30.1 K +0-- 8Nm

5., K 3-1 8Nm

30.1 K +0!5! 8Nm

4iddle st9i moment

2.2.2

Summary of A!u"#$ mom$%# &$r m$#r$ '(#) *+Nm,m- / "n gene9alG 0/3 of t6e amo;nt of 9einfo97ement 9eD;i9ed to 9esist t6e negati?e design moment in t6e 7ol;mn st9i s6o;ld be la7ed in a Iidt6 eD;al to 1/0 t6at of t6e 7ol;mn st9i and 7ent9al Iit6 t6e 7ol;mn. Fo9 7onse9?ati?e designG ass;me moment e9 met9e o?e9 s;o9t is 0/3 moment o?e9 1/0 7ol;mn st9i.

O;te9 s;o9t #nd san Fi9st inte9io9 s;o9t "nte9io9 san "nte9io9 s;o9t 2. 0.3.1

LNG SPAN STEEL RE3IREMENT LON& %P'N +++ Col;mn st9i

4 8Nm/mE d mmE 4/bd 1!! 's/bd 's mm/mE

0.3.0

O;te9 %;o9t +1,!!.1 100.5 !.,-! !.015 3!5 T

LON& %P'N ++ 4iddle st9i


2.4 0..1

LON& %P'N Col;mn 4iddle %t9i %t9i +1,!! ! 1! ,1 +00 +51, ,- ,3 +1-0 +3,!

O;te9 %;o9t ! 53! !.!!! !.!!! ,! TminE

3.!!



Fi9st s; inte9io9 +00.0 100.5 1.0-, !.313 5! T

"nte9io9 san ,-.1 510 3.1, !.-1!5 B

"nte9io9 s;o9t +1-03., 100.5 !.-51 !.00303 T

35 mm min. dE

Fi9st s; inte9io9 +51,.3 53! 1.,5 !.5 01 T

"nte9io9 san ,3.5 510 0.! !.30 B

"nte9io9 s;o9t +3-. 53! 1.350 !.30 131 T

331 mm min. dE

Fi9st s; inte9io9 +00.0 100.5 1.0-, !.313 5! T

"nte9io9 san ,-.1 510 3.1, !.-1!5 B

"nte9io9 s;o9t +1-03., 100.5 !.-51 !.00303 T

35 mm min. dE

m Iidt6

#nd %an ,13. 510 3.1! !.,11-0 B

SRT SPAN STEEL RE3IREMENT %)O*T %P'N +++ Col;mn st9i 3.!! O;te9 %;o9t +1,!!.1 100.5 !.,-! !.015 3!5 T

m Iidt6

#nd %an 1!., 510 .!1.10 5,5! B

5.!

%)O*T %P'N Col;mn 4iddle %t9i %t9i +1,!! ! 1! ,1 +00 +51, ,- ,3 +1-0 +3,!

m Iidt6

#nd %an 1!., 510 .!1.10 5,5! B

Page 0 of 5

JOB NO. : : $#%"&N OF FL'T%L'B ("T) $*OP+P'N#LTO B% ,1!!: P'*T 1+ 1-- : T2P"C'L P'N#L ,.!4  ,.!4 P*OJ#CT : %O&O $#P'*T4#NT'L %TO*# T"TL#

%BJ#CT

3!15

$esigned :

LTC

$ate :

1+%e+0!1

C6e78ed :

LTC

$ate :

1+%e+0!1

Page No. :

Of

:


0..0

%)O*T %P'N +++ 4iddle st9i


5.!

O;te9 %;o9t ! 53! !.!! !.!! ,! TminE

4inim;m steel a9ea e9 fa7e fo9 6 > !! mm 15!! mm

2.5

0.5.1

LON& %P'N +++ Col;mn st9i

's > 's > 's >

3.!! O;te9 %;o9t

Fi9st s; inte9io9 +51,.3 53! 1.,5 !.5 01 T

"nte9io9 san ,3.5 510 0.! !.30 B

"nte9io9 s;o9t +3-. 53! 1.350 !.30 131 T

31 mm min. dE

!.13 b6/1!! ,! mm/m 1-5! mm/m

9eD;i9ed steel a9ea ba9 sie 9o?ided 7al7;lated sa7ing 9o?ided sa7ing 9o?ided steel a9ea

3!5 05 11 15! 300

Bottom steel


1-5! minE 0! 11 15! 0!-

LON& %P'N +++ 4iddle st9i

To steel


Bottom steel


's in mm/m

,! minE 10 15 105 -!5

5.! O;te9 %;o9t

5,5! 30 13 105 3

150 1 130 105 1!,

,! minE 10 15 105 -!5 1-0 05 11 115 0,

3.!!

O;te9 %;o9t

Fi9st s; inte9io9 5! 05 11! 1!! -!1-5! minE 0! 11 15! 0!-

"nte9io9 san ,! minE 10 15 105 -!5 !5 30 11 15! 530

"nte9io9 s;o9t 303 05 15! 15! 300 1-5! minE 0! 11 15! 0!-

m Iidt6 #nd %an

,! minE 10 15 105 -!5

%)O*T %P'N +++ Col;mn st9i

m Iidt6 #nd %an

To steel

's in mm/m

0.5.3

#nd %an ,13. 510 3.1! !.,11-0 B

S3MMARY F STEEL AREA RE3IRED AND PR6IDED

's in mm/m

0.5.0

m Iidt6

Fi9st s; inte9io9 01 0! 13! 105 0513 150 1 130 105 1!,

"nte9io9 san ,! minE 10 15 105 -!5 30 05 13 105 3-0

"nte9io9 s;o9t 131 0! 1,0 15 1-5 150 1 130 105 1!,

m Iidt6 #nd %an

Fi9st s; inte9io9

"nte9io9 san

"nte9io9 s;o9t

To steel


3!5 05 11 15! 300

,! minE 1 05, 0!! 1!!5

5! 05 11! 1!! -!-

,! minE 1 05, 0!! 1!!5

303 05 15! 15! 300

Bottom steel


1-5! minE 0! 11 15! 0!-

5,5! 30 13 105 3

1-5! minE 0! 11 15! 0!-

!5 30 11 15! 530

1-5! minE 0! 11 15! 0!-


Page 3 of 5

JOB NO. : : $#%"&N OF FL'T%L'B ("T) $*OP+P'N#LTO B% ,1!!: P'*T 1+ 1-- : T2P"C'L P'N#L ,.!4  ,.!4 P*OJ#CT : %O&O $#P'*T4#NT'L %TO*#

3!15

T"TL#

$esigned :

LTC

$ate :

1+%e+0!1

%BJ#CT

C6e78ed :

LTC

$ate :

1+%e+0!1

Page No. :

Of

:


0.5.

%)O*T %P'N +++ 4iddle st9i 's in mm/m

2.7 0..1

5.! O;te9 %;o9t

To steel


Bottom steel


m Iidt6 #nd %an

,! minE 10 15 105 -!5 150 1 130 105 1!,

Fi9st s; inte9io9

,! minE 10 15 105 -!5

,! minE 10 15 105 -!5

150 1 130 105 1!,

30 05 13 105 3-0

"nte9io9 s;o9t 131 0! 1,0 15! 0!- 150 1 130 105 1!,

SEAR CEC P;n76ing s6ea9 at t6e 7ol;mn fa7e :+

P;n76ing s6ea9 at 1.5d f9om t6e 7ol;mn fa7e :+ P;n76ing e9imete9G ; >  x  !., #n7losed a9ea > 5.!5 x ltimate ;n76ing fo97eG eff > 1.15 t > !.5 +  > --, 8 N P;n76ing s6ea9 st9essG ? > eff / ;d > 1!!'s/bd 9o?ided > !.03!!5 %o ?7 >

2.9

01 0! 13! 105 0513

1-0 05 11 1!! -!-

P;n76ing e9imete9G ; > 0 x  !., H !., #n7losed a9ea > !., x !., > ltimate ;n76ing fo97eG eff > 1.15 t > !.5 + !. x  E > 1- 8N 4ax. ;n76ing s6ea9 st9essG ? > eff / ;d > 3.05!5 N/mm 0..0

"nte9io9 san

1.5d >

> 3.0! !. m

m

1,

1.15

<

x

0.8´Öf 7; = .3,1, N/mmG

%o O.. Q

0133.5 mm

H 5.!5 05.,!

E

.05 > 0!.0 E > 05.,! m E

x

1,

x

m

1.15

!.30-3- N/mm < ?7 O.. Q !.1150 N/mm No s6ea9 9einfo97ement is 9eD;i9ed. Q

DEFLECTIN CEC FR LNG SPAN T6e 7al7;lations a9e made fo9 t6e middle st9i ;sing t6e a?e9age total moment at midsan and t6e a?e9age of t6e 7ol;mn and middle st9i tension steel. T6e basi7 san/det6 9atio is 0 Table 3.- of B%,11!+Pa9t 1G 1--E. -,.5! x 1! 4/bd > ++++++++++++++++++++++++++++++++++++ ,!! x 510 0 0 ´ f = ´ 's 9eD fs > +++++++++++++++++++++++++ 3 ´ 's 9o?

>

>

3.10,

0 x ! x !5.1 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 x 

>

0,.0 N/mm

>

!. - ,

T6e modifi7ation fa7to9 is  + fs > !.5 5 H +++++ ++++++ +++++++ ++++++ 10!!.-H4/bdE T6e9efo9e


'lloIable san/det6 9atio > '7t;al san/det6 9atio >

05.! 1.1

>>> $efle7tion is satisfa7to9= Q

Page  of 5

JOB NO. : : $#%"&N OF FL'T%L'B ("T) $*OP+P'N#LTO B% ,1!!: P'*T 1+ 1-- : T2P"C'L P'N#L ,.!4  ,.!4 P*OJ#CT : %O&O $#P'*T4#NT'L %TO*#

3!15

T"TL#

$esigned :

LTC

$ate :

1+%e+0!1

%BJ#CT

C6e78ed :

LTC

$ate :

1+%e+0!1

Page No. :

Of

:


.0

S3MMARY

3.1

CONC*#T# OL4# Total 7on79ete ?ol;me of d9o anel and slab

3.0

>

,1.3 m

> > >

.1 8g 0., 8g ,!-0.! 8g

0.33

*#"NFO*C#4#NT Total Ieig6t of 9eba9s in d9o anel Total Ieig6t of 9eba9s in slab Total 9eba9s Ieig6t e9 anel

3.

,.1 H 5!.3 m3

%OFF"T FO*4(O* %offit fo9m

3.3

> >

$#N%"T2 OF *#B'*% O#* CONC*#T# OL4# $ensit= of 9eba9s o?e9 7on79ete ?ol;me in d9o anel >

5.3

$ensit= of 9eba9s o?e9 7on79ete ?ol;me in slab >

1,!.0

8g/m3 8g/m3

$ensit= of 9eba9s o?e9 7on79ete ?ol;me e9 anel >

1!.

8g/m3

Cent9e line of Panel

Col;mn st9i

E T C 5 0 1 + 0 1 T

T05 + 1!! TE Fi9st int. s;.E

Col;mn st9i T0! + 105 TE T0! + 15! TE

%teel in To of Panel

Col;mn st9i

T05 + 15! TE "nte9io9 s;.E

1st int. s;.E "nt. s;.E

%teel in To of Panel

"nte9io9 %;o9t

Fi9st "nte9io9 %;o9t

T05 + 1!! TE

T05 + 15! TE

Fi9st inte9io9 s;.E

T30 + 105 BE

4iddle st9i

T30 + 15! BE T0! + 105 TE T0! + 15 TE

1st int. s;.E

"nte9io9 s;.E

T1 + 0!! TE

Fo9 end sanE

Cent9e line of Panel

Fo9 inte9io9 sanE

T05 + 115 BE

T10 + 105 TE

T05 + 105 BE

"nte9io9 s;.E

T05 + 1!! BE T05 + 105 BE

T0! + 15! BE

Fo9 end sanE

T0! + 15 TE

Fo9 inte9io9 sanE

Fo9 "nte9io9 s;.E Fo9 end sanE Fo9 inte9io9 sanE

T0! + 15! BE

#nd"nt. sanE sanE

Col;mn st9i E E B B C C 5 ! 0 5 1 1 + + 0 0 3 3 T T

%teel in Bottom of Panel

%teel in Bottom of Panel

T0! + 15! BE

T05 + 1!! TE

T0! + 15! BE

T10 + 105 TE

TYPICAL REBARS DETAILING

T30 + 105 BE

T30 + 15! BE

T0! + 15! BE T9ans?e9se ba9s not s6oIn %e7tion at $9o Panel


Page 5 of 5

Copy of flatslab~design (SSP)_modified

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