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CFVR5226 - Time-dependent losses.Coupled calculation method (EHE)


The model is a prestressed beam with a length of 1600 cm.
The beam is made of HA-40 concrete and the tendons are made of Y1960S3 steel.
The section is rectangular 100 x 80, 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: CFVR5226.DAT


  FINISH
  ~CFCLEAR,,1
  ~CFACTIV,NLBR,Y
  ~CFACTIV,PRSC,Y
  NomFile='CFVR5226'
  /TITLE, %NomFile%, Time-dependent losses. Coupled calculation method (EHE)

! -------------------------------------------------------------------------------------
! Initial data
! -------------------------------------------------------------------------------------
! Parameters
  DEPTH = 100
  WIDTH = 80
  L = 1600
! Setup
  ~CODESEL,EC3-92,EC2-91,EHE,,EC8-94
  ~UNITS,,LENG,CM
  ~UNITS,,TIME,S
  ~UNITS,,FORC,KP
  /PREP7
! Materials
  ~CFMP,1,LIB,CONCRETE,EHE,HA-40
  ~CFMP,2,LIB,REINF,EHE,B 500 S
  ~CFMP,3,LIB,PREST,EHE,Y1960S3
! Model definition
  ~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,1,3,100,15
  ~PCTNMDF,1,EADD,1.
  ~PCTNMDF,1,EADD,2.
  ~PCTNMDF,1,PADD,1.
  ~PCTNMDF,1,PADD,2.
  ~PCTNMDF,1,METHOD,1
! Stress losses calculation
  ~PCLOSS,1E+06,1,EHE,0.8

!--------------------------------------------------------------------------------------
! DATA CHECK
!--------------------------------------------------------------------------------------
! Data comparison number
  NComp    = 9
  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_RLX'

! Correct data, obtained data
!--------------------------------------------------------------------------------------
  VALUE( 1,1) =  7.750E2/1.1788      $  ~CFGET,value( 1,2),PRSCONC,,TENDON,LOSS,,1, 1,4
  VALUE( 2,1) =  5.611E2/1.1788      $  ~CFGET,value( 2,2),PRSCONC,,TENDON,LOSS,,1, 1,5
  VALUE( 3,1) =  4.910E2/1.1788*0.8  $  ~CFGET,value( 3,2),PRSCONC,,TENDON,LOSS,,1, 1,6
  VALUE( 4,1) =  7.750E2/1.1788      $  ~CFGET,value( 4,2),PRSCONC,,TENDON,LOSS,,1, 6,4
  VALUE( 5,1) =  5.611E2/1.1788      $  ~CFGET,value( 5,2),PRSCONC,,TENDON,LOSS,,1, 6,5
  VALUE( 6,1) =  7.870E2/1.1788*0.8  $  ~CFGET,value( 6,2),PRSCONC,,TENDON,LOSS,,1, 6,6
  VALUE( 7,1) =  7.750E2/1.1788      $  ~CFGET,value( 7,2),PRSCONC,,TENDON,LOSS,,1,11,4
  VALUE( 8,1) =  5.611E2/1.1788      $  ~CFGET,value( 8,2),PRSCONC,,TENDON,LOSS,,1,11,5
  VALUE( 9,1) =  7.220E2/1.1788*0.8  $  ~CFGET,value( 9,2),PRSCONC,,TENDON,LOSS,,1,11,6

! Warning and error tolerances
  *DO,II,1,NComp
    TOLER(II,1)  = 1E1
    TOLER(II,2)  = 1E1
  *ENDDO

  ~PLTEND ! Check Tendon Editor Window

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

Results

LabelTargetCivilFEMRatioTolerance
C01_SHR 657.45 655.161.004 10
C01_CRE 475.99 474.411.003 10
C01_RLX 333.22 329.91.010 10
C06_SHR 657.45 655.161.004 10
C06_CRE 475.99 474.411.003 10
C06_RLX 534.1 530.181.007 10
C11_SHR 657.45 655.161.004 10
C11_CRE 475.99 474.411.003 10
C11_RLX 489.99 488.181.004 10


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