From: Subject: ACES PSC Module - Ultimate Check Date: Sun, 12 Jul 2009 22:04:02 +0930 MIME-Version: 1.0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Location: file://C:\ACES6\Tempdata\PSC Module-Page-Data.htm X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 ACES PSC Module - Ultimate Check

ACES PSC Design Module V1.000:   Run=20 date:  23-JUN-09
-------------------------------------------= ------------------------------------------------------
Heading: &= nbsp; Test=20 module
Job Name: AS5100 SUPER-T CLOSED TOP : = SUPERT-CLSD3
Designer:=20  GS

Comments: No comments

Units: =    mm, kN,=20 kN.m,=20 MPa
------------------------------------------------------------------= -------------------------------

DESIGN=20 CODE: AS5100.5-2004

ULTIMATE MOMENT CHECK

  Strand data:          
    Ult breaking stress of PS = strand (fp =3D=20 1000*Pult/Aps)  

=3D

1785.7

    MPa
    Total area of prestressing = strands=20    (Ap)

=3D

5040.0

  mm^2
    Distance of CG strand group = from bottom=20 of girder (Ycgs)  

=3D

493.3

  mm
    Distance of CG strand group to = top of=20 sectn (Dp=3DD-Ycgs)  

=3D

  906.7

  mm
           
  Section data:          
    Overall depth of composite = section=20    (D)

=3D

1400.0

  mm
    Width of insitu = slab (Ws)

=3D

2400.0

  mm
    Concrete strength of deck slab=20 (f'cs)

=3D

40.0

  MPa
           
  Passive reinforcement = data:          
    Area of longitudinal = reinforcement in=20 tensile zone  (Ast)

=3D

   5655

  mm^2
    Area of longitudinal = compressive=20 reinforcement (Asc)  

=3D

   942

  mm^2
    Flexural strength of = longitudinal=20 reinforcement (fsy)

=3D

   250

  MPa
           
  Factors & coefficients:         
    Equivalent compressive stress=20 coefficient (Srf)

=3D

0.850

  (AS5100.5-2004 Clause 8.1.2.2)
    Ultimate strand stress factor = (k1u)

=3D

0.800

  (AS5100.5-2004 Clause 8.1.5)
    Neutral axis depth parameter (v = =3D Srf -=20 0.007*(f'cs-28))

=3D

0.766

  (AS5100.5-2004 Clause 8.1.2.2)
           
    Ultimate strand stress factor=20 (k2u) is given by:         
        k2u =3D=20 (Ap*fp+(Ast-Asc)*fsy)/(Ws*Dp*f'cs)

=3D

0.117

  (AS5100.5-2004 Clause 8.1.5)
           
  Tension forces in prestressing = strand:      
           
  Dcb calc'd using strain compatibility = method
           
  Depth of compression block (Dcb) 

=3D

64.7

  mm
  Ultimate strand design strength (fpu =3D = fp*(1 -=20 k1*k2u/v))

=3D

  1567.6

  MPa (AS5100.5-2004 Clause 8.1.5)
  Area of a single strand (Aps)

=3D

140.0

  mm^2

Row No.

Yb (mm)

 No. bonded strands 

Dp (mm)

Ap (mm2)

Force (kN)

Yielded?

Moment (kN.m)

1

70 

8

   1330  

   1120  

   1756  

  Yielded  

   2335  

2

150 

8

   1250  

   1120  

   1756  

  Yielded  

   2195  

3

500 

4

   900  

   560  

   878  

  Yielded  

   790  

4

1000 

4

   400  

   560  

   878  

  Yielded  

   351  

5

1100 

8

   300  

   1120  

   1756  

  Yielded  

   527  

6

300 

4

   1100  

   560  

   878  

  Yielded  

   966  

7

0

   0  

   0  

   0  

    

   0  

8

0

   0  

   0  

   0  

    

   0  

       

   0  

   9315  

   7163  =20

  Where for each row of strands:        
      Dp =3D D - Yb (Yb is = the=20 distance of the strand from the bottom of the girder)
      Ap =3D No bonded=20 strands*Aps        
      Force =3D Ap*fpu/1000        
           
  Total tensile force in PS strands = (Fps)

=3D

   9315

  kN
  Moment capacity of PS strands = (Mcss) 

=3D

   7163

    kN.m
           
  Tension forces in passive = reinforcement:        
           
  Dcb calc'd using strain compatibility = method
           
  Depth of compression block (Dcb) 

=3D

64.7

  mm
  Flexural strength of longitudinal = reinforcement=20 (fsy) 

=3D

  250.0

  MPa

Row No.

Yb (mm)

 No. of bars 

Dp (mm)

Ap (mm2)

Force (kN)

Yielded?

Moment (kN.m)

1

50 

5

   1350  

   1571  

   393  

  Yielded  

   530  

2

1000 

5

   400  

   1571  

   393  

  Yielded  

   157  

3

1300 

8

   100  

   2513  

   628  

  Yielded  

   63  

4

1350 

3

   50  

   942  

   0  

  Compression  

   0  

5

0

   0  

   0  

   0  

    

   0  

6

0

   0  

   0  

   0  

    

   0  

7

0

   0  

   0  

   0  

    

   0  

8

0

   0  

   0  

   0  

    

   0  

9

0

   0  

   0  

   0  

    

   0  

10

0

   0  

   0  

   0  

    

   0  

11

0

   0  

   0  

   0  

    

   0  

12

0

   0  

   0  

   0  

    

   0  

13

0

   0  

   0  

   0  

    

   0  

14

0

   0  

   0  

   0  

    

   0  

15

0

   0  

   0  

   0  

    

   0  

16

0

   0  

   0  

   0  

    

   0  

17

0

   0  

   0  

   0  

    

   0  

18

0

   0  

   0  

   0  

    

   0  

19

0

   0  

   0  

   0  

    

   0  

20

0

   0  

   0  

   0  

    

   0  

       

   6597  

   1414  

   750  =20

  Total tensile force in passive = reinforcement=20 (Frf)  

=3D

   1414

  kN
  Moment capacity of reinforcement (Mcsr)

=3D

   750

    kN.m
           
  Compression force:  (Dcb = calc'd=20 using strain compatibility method)
         
  Equivalent compressive stress coefficient = (Srf)

=3D

0.85

 
  Ultimate concrete compression strength (fuc = =3D=20 Srf*f'cs)

=3D

34.0

  MPa
           
  Moment capacity of concrete (Mc) 

=3D

   -200.9

  kN.m ( Based on strain compatibility = method)
    For the simplified method: =          
        Mc =3D -=20 fuc*Ws*Dcb*Dcb/(2.*1000)         
    For the strain compatibility = method:        
        Mc =3D -=20 fuc*Ws*Dcb*0.5*Dcb/(3.*1000)        
           
  Design Strength:        
           
  Moment cap. of strand + passive RF (Mcs =3D = Mcss+Mcsr)  

=3D

   7914

  kN.m
  Moment capacity of concrete (Mc)

=3D

   -201

  kN.m
  Ultimate moment capacity of section (Mu =3D Mcs + = Mc)

=3D

   7713

  kN.m
           
  Ultimate moment capacity reduction factor = (=D8)

=3D

0.900

  (AS5100.5-2004 Table 2.2)
  Design ultimate capacity (=D8Mu =3D = =D8*Mu)

=3D

   6941

  kN.m
           
  Ultimate Loads:      
           

Loading

Moment (kN.m)

Load Factor

Ult. Moment (kN.m)

Girder self-weight

   600.0  

   1.2  

   720.0  

Insitu concrete slab

   500.0  

   1.2  

   600.0  

Hotmix/bitumen (SDL)  

   50.0  

   2.0  

   100.0  

Design Live Load

   2000.0  

   1.8  

   3600.0  

Special (heavy) vehicle  

   0.0  

   1.5  

   0.0  

DL + SDL + LL

  M*ll =3D  

   5020.0   =

DL + SDL + HLV

  M*svl =3D   =

   1420.0  =20

           
  Ultimate design moment =3D Max of M*ll and=20 M*svl  

=3D

   5020

    kN.m
           
  Ultimate design capacity or strength = (=D8Mu)

=3D

6941

  kN.m