Computer Aided Design Beam

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WELCOME TO THE COMPUTER AIDED DESIGN BEAM (CADB) VERSION 1 (EVAL ( EVALUA UATION) TION)

DESIGNED BY

KEVIN TANTSEVI

DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING CARNEGIE MELLON UNIVERSITY 

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Start

COPYRIGHT 2000

 

M'/r 

Proj!"#$ %&'

 CAE

D$D$-.% .%r r#$ #$ %&' %&'

 Kevin Tantisevi

b1

T$ o B&'

D&"

3 spans

DESIGN CRITERIA   C$ncrete Stren%th & f'c '

=

6,000

psi

  Elastic ($)*l*s $ C$ncrete C$ncrete &Ec'

=

4.42E+06

psi

  ein$rcin% bar -iel) Stren%th & f  yr  '  '   Stirr*ps -iel) Stren%th &f  '  ys

=

40,000

psi

=

40,000

psi

PARAMETER FOR FLE5URAL DESIGN 

β1

=

0.5

ρb

=

0.066

ρin.

=

0.005

ρ

=

0.032!

"

=

0.21!4

/n

=

1141.4

PARAMETER FOR SHEAR DESIGN   f' f'c&12' = 1161.#0

M&6-'7' %7'/r o /&r$ -% & ro8

6

B&' W-3"4

0*1+*1,

15 inches

 

Lo&3 D&"&

A S-%.: $&% /&' 1 1 2 2  

/ips /ips /ips /ips /ips  t. /ips  t.

ea) ei%ht $ ea =

0.52 /i / ipst

t$tal act$re) $int $a) 1 = t$tal act$re) $int $a) 2 = t$tal act$re) 7ni$r $a) =

0.00 /ips 0.00 /ips 0.2 /ips

 a b

t. t. t.

:A = : =

89:0;; /ip 89:0 /ips s 89:0 89 :0;; /ip /ips s (a<. Shear = 89:0; /ips (a<. *l *lti tia ate te p$s p$siti tive ve $ $e en nt = 89: 89:0; /ips /ips. .tt (a<. *ltiate ne%ative $ent = 0 /ips.t hin = 0 in inch ches es re> ) = 89:0; inches D"r'-% 3"4 (3) &%3 "4-!9%$$ (4) 7se ea epth = 89:0; in i nches Chec/ the bea "ei%ht b? recalc*latin% the l$a) D"r'-% A$ re> As =

 

89:0; inches

89:0; inches.2

The shear rein$rceent is ar $. Area &in2' Spacin% $ bars 7se 7se the the sp spac acin in% % $

=

@@. asse)

ar $. 5 6 0.31 0.44 Area  bar &in2' $. $ bars 89:0; 89:0; (in. n*ber $ 2 steel bars is re*ire)   7se the t$p bar = 2 $. 14 bar C4!9 S4&r   Chec/ i )&f' )&f'c'12  :a<  φ  

Thic/ness

89:0; 3 0.22 89:0; 8 89: 9:0 0;;

4 0.4 89:0; 89: 89:0 0;;

 0.6 89:0;

! 0.# 89:0;

# 1 89:0;

7se the b$tt$ bar siBe

5 0.62 89:0;

10 1.2 89:0; =

11 1.56 89:0; 4 $. 14 bar

14 2.25 89:0;

 

Lo&3 D&"& A t"$ span c$ntin*$*s bea a1 a1 b1 b1 1

/ips /ips /ips /ips /ips  t.

1 a2 a2 b2 b2 2 2

/ips  t. /ips /ips /ips /ips /ips  t. /ips  t.

F&!"or3 Lo&3 C&$ act$re) ea "ei%ht Case escripti$n 1 D*ll  2 al et  3 D*ll  4 al i%ht 

a1 0 0 0 0

0.2 /ips  t. b1 0 0 0 0

1 a1 b1

t. t. t.

2 a2 b2

t. t. t.

71 0 0 0 0

a2 0 0 0 0

b2 0 0 0 0

72 0 0 0 0

R$7:" o %3 'o'%" case 1 2 3 4 a<. abs$l*te

A

 

C

0.00

2.01 F2.01

0.00

0.00

2!3.33 F2!3.33

0.00

0.00

!50.00 F!50.00

0.00

0.00

566.6 F566.6

0.00

0.00

15!.00 15!.00

0.00

R$7:" o '-3$&% 'o'%" &%3 $4&r case 1 2 3

:A

(A

: :

(C

:C

89:0;

89:0;

89:0; 89:0;

89:0;

89:0;

89:0;

89:0;

89:0; 89:0;

89:0;

89:0;

89:0;

89:0;

89:0; 89:0;

89:0;

89:0;

4

89:0;

89:0;

89:0; 89:0;

89:0;

89:0;

a<. abs$l*te

89:0;

89:0;

89:0; 8 89:0;

89:0;

89:0;

(a<. Shear = 89:0; /ips (a<.p$sitive $ent = 89:0; /ips.t (a<. ne%ative $ent = 15!.00 /ips.t hin = 0 inch inches es re> ) = 89:0; inches D"r'-% 3"4 (3) &%3 "4-!9%$$ (4) 7se ea epth = 89:0; iin nches

Thic/ness

Chec/ the bea "ei%ht b? recalc*latin% the l$a)

=

89:0; in i nches

@@. asse)

D"r'-% A$ re> As+ =

89:0; inches.2

re> AsF =

89:0; inches.2

ar $.

5

6



!

#

10

11

14

Area  bar &in2'

0.31

0.44

0.6

0.#

1

1.2

1.56

2.25

$. $ b$tt$ bars

89:0;

89:0;

89:0;

89:0;

89:0;

89:0;

89:0;

89:0;

$. $ t$p bars

89:0;

89:0;

89:0;

89:0;

89:0;

89:0;

89:0;

89:0;

(in. n*ber $ 2 steel bars is re*ire)

7se t$p bar =  C4!9 S4&r   Chec/ i )& )&f' f'c'12  :a<  φ  

 

The shear rein$rceent is

$. 14 bar

7se $tt$ bar

89:0;

ar $.

3

4

5

Area &in2'

0.22

0.4

0.62

Spacin% $ bars

89:0;

89:0;

89:0;

7se the spacin% $

89:0;

89:0;

=

5 $. 11 bar

 

Lo&3 D&"& A three span c$ntin*$*s bea a1 a1 b1 b1 1 1 a2 a2 b2 b2 2 2 a3 a3 b3 b3 3 3

100 100 0 0

/ips /ips /ips /ips

5 5 0 0 0 0 5 5 0 0 100 200 5 5

/ips /ips /ips /ips /ips /ips /ips /ips /ips /ips /ips /ips /ips /ips

F&!"or3 Lo&3 C&$ act$re) ea "ei%ht Case escripti$n 1 D*ll  2 1 an) 3  3 1 an) 2  4 2  5 2 an) 3 

1 a1 b1

15 t. 10 t. 0 t.

2 a2 b2

15 t. 0 t. 0 t.

3 a3 b3

12 t. 0 t. 4 t.

 t.  t.

 t.  t.

 t.  t.

a1 140 10 10 0 0

0.5 /ips  t.  b1 0 0 0 0 0

71  !.5 !.5 0 0

a2 0 0 0 0 0

b2 0 0 0 0 0

72  0 !.5 !.5 !.5

a3 0 0 0 0 0

 b3 140 340 0 0 340

R$7:" o %3 'o'%" case 1 2 3 4

A

5

a<. abs$l*te

 

C C

0.00

35.35 F35.35

251.03 F251.03



0.00

2!.!2 F2!.!2

415.3# F415.3#

0.00

4!#.0 F4!#.0

0.00 0.00

F2.2 2.2

0.00

0.00

#1.0 F#1.0

#1.0 F#1.0

0.00

0.00 0.00

F2!.4 2!.4 !4!.00 !4!.00

600.26 F600.26 !52.00 !52.00

0.00 0.00

R$7:" o '-3$&% 'o'%" &%3 $4&r :A

case 1 2 3 4 5

re> ) =

13.30 63.23

(C

:C :C

(C

F43.65

4#.05 15#.1

F1!6.45

0.66

#.10 312.2!

F3!1.!!

12#.2

F133.0

1#5.6 F#.10

55.3#

!.

F11#.64

20#.3 #6.5!

F15#.4

30.#2 F0.23

F0.23

0.23

F6.0

6.0

6.0 63.5

F14.23

63.5 .5#

.5#

F.5#

1!1.00

F1.#2

F1.#2 21.!2

F#.34

105.6! 32.6#

F366.4!

114.31

241.00

3!4.00 160.00

204.00

155.00 4!.00

56#.00

201.00

3!4.00 /ips 56#.00 /ips.t !52.00 /ips.t 10 in inch ches es 2 inches

D"r'-% 3"4 (3) &%3 "4-!9%$$ (4) 7se ea epth = 2 inches

Thic/ness

Chec/ the bea "ei%ht b? recalc*latin% the l$a) D"r'-% A$ re> As =

=

2# inches

@@. asse)

! inches.2

re> AsF =

11 inches.2

ar $.

5

6



!

#

10

11

14

Area  bar &in 2'

0.31

0.44

0.6

0.#

1

1.2

1.56

2.25

$. $ b$tt$ bars

26

1#

14

11

!



6

4

$. $ t$p bars

36

25

1#

14

11

#

!

5

(in. n*ber $ 2 steel bars is re*ire)

7se t$p bar = 5 C4!9 S4&r   Chec/ i )&f' )&f'c'12  :a<  φ

$. 14 bar

 

n$tt ne n$ nece cess ssar aril? il? re re* *ir ire) e) b* b*tt *s *sin in% % th the e i in. n. sp spac acin in% % st stir irr* r*ps ps in inst stea ea) )

 

The Th e sh shea earr re rein in$ $rc rce een entt is

7se $tt$ bar

ar $.

3

4

5

Area &in2'

0.22

0.4

0.62

Spacin% $ bars

11

13

13

7se 7se the spaci pacin% n% $

:

101.!3

(a<. Shear = (a<.p$sitive $ent = in

: :

F10.06

1.#2

a<. abs$l*te

(a<. hne%= ative $ent =

(A

!.#!

11

inch inche es. $ $ $.. 3 bar bar c cc c

=

4 $. 14 bar

 

1

 A

2

1

 

2

B

 1  15 5 t.

3

3

C

15 t.

Secti$n 1F1, 2F2, 3F3

D

12 t.

Dr&8-%. 3"&-:$ or /1

5 $. 14 bar

11 inches. $ $. 3 bar cc

2#

4 $. 14 bar

15

 

1

 A

1

B

1

 A

B

1

1

 A

 

1

B

 

2

2

C

3

C

3

D

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