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CFVR5224 - Time-dependent losses. Uncoupled calculation type (ACI)


The model is a prestressed beam with a length of 16 cm
The beam is made of C40/50 concrete and the tendons are made of Y1960S3 steel.
The section is rectangular 1 x 0.8, with reinforcement of s500 steel.
The aim of the example is to verify the calculation of prestressing losses for active tendons.

Element types used in the model: BEAM44

Needed CivilFEM Modules:
Geotechnical Module
Bridges and Civil Non Linearities Module
Advanced Prestressed Concrete Module

The example can be launched on an educational license.
KEYWORDS
Beam
Tendon
Cross Section
Prestressed Concrete

Model Statistics
Number of elements 10
Number of nodes 11
Number of civil materials 3
Number of cross sections 1
Number of shell vertices 0

Log file: CFVR5224.DAT


  FINISH
  ~CFCLEAR,,1
  ~CFACTIV,NLBR,Y
  ~CFACTIV,PRSC,Y
  NomFile='CFVR5224'
  /TITLE, %NomFile%, Time-dependent losses. Uncoupled calculation type (ACI)

! -------------------------------------------------------------------------------------
! Initial data
! -------------------------------------------------------------------------------------
! Parameters
  DEPTH = 1.0
  WIDTH = 0.8
  L = 16
! Setup
  ~CODESEL,EC3-92,EC2-91,ACI,,EC8-94
  ~UNITS,SI

  /PREP7
! Materials
  ~CFMP,1,LIB,CONCRETE,EC2,C40/50
  ~CFMP,2,LIB,REINF,EC2,S500
  ~CFMP,3,LIB,PREST,EHE,Y1960S3

! Model definition
  DEPTH = 1.0
  WIDTH = 0.8
  ~CSECDMS,1,REC,1,DEPTH,WIDTH
  ~BMSHPRO,1,BEAM,1,1,,,4,1,0,,Beam 1
  ET,1,BEAM4
! Nodes
  N, 1,0,0
  N,11,L,0
  FILL
! Elements
  TYPE,1
  REAL,1
  MAT,1
  E,1,2
  EGEN,10,1,-1
! Capture support beam.
  ~SBBMDEF,1
! Elevation points
  ~PCEPDEF,1,1,0,0
  ~PCEPDEF,2,11,0,0
! Plan points
  ~PCPPDEF,1,1,0,0
  ~PCPPDEF,2,11,0,0
! Tendons
  ~PCTNDEF,1,3,1e-002,0.15
  ~PCTNMDF,1,EADD,1.
  ~PCTNMDF,1,EADD,2.
  ~PCTNMDF,1,PADD,1.
  ~PCTNMDF,1,PADD,2.
! Stress losses calculation
  ~PCTNMDF,1,METHOD,1
  ~PCLOSS,100000,0,,0
  ~CFGET,LOSS1,PRSCONC,,TENDON,LOSS,,1,11,6

  ~CFMP,3,ACI_PRES,RLCF1   ,,30
  ~PCLOSS,500000,0,,0
  ~CFGET,LOSS2,PRSCONC,,TENDON,LOSS,,1,11,6

  ~CFMP,3,ACI_PRES,RLCF1   ,,45
  ~CFMP,3,ACI_PRES,RLCF2   ,,1.1
  ~PCLOSS,100000,0,,0
  ~CFGET,LOSS3,PRSCONC,,TENDON,LOSS,,1,11,6

!--------------------------------------------------------------------------------------
! DATA CHECK
!--------------------------------------------------------------------------------------
! Data comparison number
  NComp    = 11
  NComp_ch = 0

! Marix dim.
  *DIM,LABEL,CHAR,Ncomp,1
  *DIM,LABEL_CH,CHAR,Ncomp_ch,1
  *DIM,VALUE,,Ncomp,3
  *DIM,VALUE_CH,CHAR,Ncomp_ch,3
  *DIM,TOLER,,Ncomp,2

! Labels
!--------------------------------------------------------------------------------------
  LABEL( 1)  = 'C01_SHR'
  LABEL( 2)  = 'C01_CRE'
  LABEL( 3)  = 'C01_RLX'
  LABEL( 4)  = 'C06_SHR'
  LABEL( 5)  = 'C06_CRE'
  LABEL( 6)  = 'C06_RLX'
  LABEL( 7)  = 'C11_SHR'
  LABEL( 8)  = 'C11_CRE'
  LABEL( 9)  = 'C11_RLX1'
  LABEL(10)  = 'C11_RLX2'
  LABEL(11)  = 'C11_RLX3'

! Correct data, obtained data
!--------------------------------------------------------------------------------------
  VALUE( 1,1) =  7.600E7       $  ~CFGET,value( 1,2),PRSCONC,,TENDON,LOSS,,1, 1,4
  VALUE( 2,1) =  5.503E7       $  ~CFGET,value( 2,2),PRSCONC,,TENDON,LOSS,,1, 1,5
  VALUE( 3,1) =  0.20E07       $  ~CFGET,value( 3,2),PRSCONC,,TENDON,LOSS,,1, 1,6
  VALUE( 4,1) =  7.600E7       $  ~CFGET,value( 4,2),PRSCONC,,TENDON,LOSS,,1, 6,4
  VALUE( 5,1) =  5.503E7       $  ~CFGET,value( 5,2),PRSCONC,,TENDON,LOSS,,1, 6,5
  VALUE( 6,1) =  0.10657586E8  $  ~CFGET,value( 6,2),PRSCONC,,TENDON,LOSS,,1, 6,6
  VALUE( 7,1) =  7.600E7       $  ~CFGET,value( 7,2),PRSCONC,,TENDON,LOSS,,1,11,4
  VALUE( 8,1) =  5.503E7       $  ~CFGET,value( 8,2),PRSCONC,,TENDON,LOSS,,1,11,5
  VALUE( 9,1) =  30531863.12   $  VALUE( 9,2) =  LOSS1
  VALUE(10,1) =  51329124.63   $  VALUE(10,2) =  LOSS2
  VALUE(11,1) =  20092090.82   $  VALUE(11,2) =  LOSS3

! Warning and error tolerances
  *DO,II,1,NComp
    TOLER(II,1)  = 1E6
    TOLER(II,2)  = 1E6
  *ENDDO

!--------------------------------------------------------------------------------------
! Result comparison
!--------------------------------------------------------------------------------------
  COMPARA.MAC

Results

LabelTargetCivilFEMRatioTolerance
C01_SHR 7.6e+007 7.6e+0071.000 1e+006
C01_CRE5.503e+0075.5032e+0071.000 1e+006
C01_RLX 2e+0062.016e+0060.992 1e+006
C06_SHR 7.6e+007 7.6e+0071.000 1e+006
C06_CRE5.503e+0075.5032e+0071.000 1e+006
C06_RLX1.0658e+0071.0658e+0071.000 1e+006
C11_SHR 7.6e+007 7.6e+0071.000 1e+006
C11_CRE5.503e+0075.5032e+0071.000 1e+006
C11_RLX13.0532e+0073.0258e+0071.009 1e+006
C11_RLX25.1329e+0075.1731e+0070.992 1e+006
C11_RLX32.0092e+0072.0112e+0070.999 1e+006


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