ACES PSC Design Module V{VERSION}:   Run date:  {DATE}
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Heading:   {PROJECT}
Job Name: {JOBNAME}
Designer:  {DESIGNER}

Comments: {COMMENT1}

Units:    mm, kN, MPa, kN.m, microstrain

Design Code:   {CODE} {DEC 0}
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SECTION:   {Sectnum}

  Distance (x) of section from the first node = {x}  mm        
         
  Strand segment number:  {SectSSeg}      
  Passive R/F segment number:  {SectPSeg}      

DESIGN MOMENTS (M) & SHEARS (V)

  Self weight

Msw

 =  

{Msw}

 kN.m    

Vsw

 =  

{Vsw}

 kN      

Tsw

 =  

{Tsw}

 kN       {LcaseDescription1}
  Insitu concrete slab  

Mslab

 =  

{Mslab}

 kN.m

Vslab

=

{Vslab}

 kN

Tslab

=

{Tslab}

 kN {LcaseDescription2}
  Superimposed DL

Msdl

=

{Msdl}

 kN.m

Vsdl

=

{Vsdl}

 kN

Tsdl

=

{Tsdl}

 kN {LcaseDescription3}
  Design live load

Mll

=

{Mll}

 kN.m

Vll

=

{Vll}

 kN

Tll

=

{Tll}

 kN {LcaseDescription4}
  Special Vehicle

Mhvl

=

{Mhvl}

 kN.m

Vhvl

=

{Vhvl}

 kN

Thvl

=

{Thvl}

 kN {LcaseDescription5}
                             

DIFFERENTIAL SHRINKAGE   ({CODE} Section 6.1.7){DEC 1}

  Residual shrinkage strain in girder after made composite (u1)  

=

{u1}

  microstrain
  Ultimate shrinkage strain in insitu slab (u2)

=

{u2}

  microstrain
  Differential shrinkage strain (u = u2 - u1)

=

{u}

  microstrain {DEC 0}
           
  Youngs Modulus of girder (Eg)

=

{Eg}

  MPa
  Youngs Modulus of insitu slab (Es)

=

{Es}

  MPa {DEC 3}
  Modular ratio (n = Es/Eg)

=

{n}

   
          {DEC 0} 
  Area of insitu slab concrete (As = Ws*Ts)

=

{As}

  mm^2
  Height to centroid of slab from bottom of girder (Ys)  

=

{Ys}

  mm
  Height to centroid of composite girder (Yc)  

=

{Yc}

  mm
  Differential eccentricity (ec= Ys-Yc)

=

{ec}

  mm {DEC 3}
  Residual creep factor for girder (Rcf)

=

{Rcf}

  ({CODE} Clause E3.2.2) {DEC 0}
           
  Shrinkage forces & moments are calculated as per {CODE} Appendix E, Cl E3.2.3(a) viz:
           
  Shrinkage force Fshr = (u*Es*As/10^9)*(1 - EXP(-Rcf))/Rcf   

=

{Fshr}

  kN
  Shrinkage moment   Mshr = Fshr * ec / 1000

=

{Mshr}

  kN.m
           
           
  Shrinkage stresses:       {EXP 4}
           
  SumNA = n*As + 1.0*Ag

=

 {SumNA}

  mm2 {DEC 2}
  Fsus = Fshr*1000*(1/As - n/SumNA)

=

{Fsus}

  MPa
  Fsug = - Fshr*1000 / SumNA

=

{Fsug}

  MPa 
           
  Stress at top of insitu slab (fts = Fsus - Mshr*10^6/Zst)

=

{fts}

    MPa
  Stress at bottom of insitu slab (fbs = Fsus - Mshr*10^6/Zsb)

=

{fbs}

  MPa
  Stress at top of precast girder (ftg = Fsug - Mshr*10^6/Zgt)  

=

{ftg}

  MPa
  Stress at bot of precast girder (fbg = Fsug + Mshr*10^6/Zgb)  

=

{fbg}

  MPa {DEC 1}
           

PRESTRESS FORCES - PRELIMINARY ESTIMATE

{IncDBar$}

Strand diameter (Ds) = {Ds} mm {DEC 0}

 Row

Ybar (mm)

 Total no. of strands 

No. of debonded strands

No. of strands included

Ybar*No. strands included

{%i}

 {Ybarri} 

{Nbarti}

{Nbardi}

{Nbarbi}

{YbxNbi}    

   

{Nbars}

{Ndbars}

{Nbbars}

{Ynbars}    

  Total number of strands in the section

=

{Nbars}

     
  Total number of debonded strands in the section

=

{Ndbars}

   
  Total number of strands included in the analysis   

=

{Nbbars}

  (Nbbars)
  Sum of Ybar x number of strands included in analysis

=

 {Ynbars}

  (Ynbars)
           
  Distance from bottom of girder to girder centroid (Yb)  

=

{Yb}

  mm
  Distance from bottom of girder to CG strands (Ycgs)

=

{Ycgs}

  mm (Ynbars/Nbbars)
  Eccentricity of CG strands from CG girder section (e)

=

{e}

  mm (Yb - Ycgs)
           
  Preliminary Estimate of Jacking Force:       {DEC 2}
           
  Jacking force factor (Jf)

=

{Jf}

  {DEC 0}
  Ultimate strand breaking force (Pult)

=

{Pult}

  kN 
  Initial jacking force (Pj = Nbbars*Pult*Jf)

=

 {Pj}

  kN