CFVR5261 - 2D bending EHE

Rectangular section and HA-35

The model is a prestressed fixed-pinned beam 1600 cm length.
The beam is made of HA-35 concrete with tendons that are made of Y1860S3 steel.
The section is box one, with reinforcement of B500S steel. It has the following dimensions:

h= 100 cm
b= 80 cm

Loads:

Prestressing loads
Compression load Fy= -60000 kp
Surface load of 5 kp

The aim of the example is to verify bending checking for prestressed concrete according to EHE.

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

Cross Section

Prestressed Concrete

Code Checking/Design

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: CFVR5261.DAT

  FINISH
  ~CFCLEAR,,1
  ~CFACTIV,NLBR,Y
  ~CFACTIV,PRSC,Y
  NomFile='CFVR5261'
  /TITLE, %NomFile%, 2D bending EHE. Rectangular section

! -------------------------------------------------------------------------------------
! Initial data
! -------------------------------------------------------------------------------------
! Parameters
  DEPTH = 100.0
  WIDTH =  80.0
  L = 1600
! Setup
  ~CODESEL,EC3-92,EHE-98,EHE-98,,EC8-94
  ~UNITS,,LENG,CM
  ~UNITS,,TIME,S
  ~UNITS,,FORC,KP
  /PREP7
! Materials
  ~CFMP,1,LIB,CONCRETE,EHE,HA-35
  ~CFMP,2,LIB,REINF,EHE,B 500 S
  ~CFMP,3,LIB,PREST,EHE,Y1860S3
! Model definition
  ~CSECDMS,1,REC,1,DEPTH,WIDTH
  ~RNFDEF,1,1,2,4,0,4.0, , ,20.0,6, , ,4
  ~RNFDEF,1,2,2,2,0,4.0, , ,16.0,4, , ,4
  ~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,-0.1
  ~PCEPDEF,2,11,0,0.1
  ~PCEPDEF,3,6,-35,0
! Plan points
  ~PCPPDEF,1,1,0,0
  ~PCPPDEF,2,11,0,0
! Tendons
  ~PCTNDEF,1,3,10,10
  ~PCTNMDF,1,EADD,1.
  ~PCTNMDF,1,EADD,3.
  ~PCTNMDF,1,EADD,2.
  ~PCTNMDF,1,PADD,1.
  ~PCTNMDF,1,PADD,2.
! Stress losses calculation
  ~PCTNMDF,1,METHOD,1
  ~PCLOSS,1E+06,0,,0
! Boundary conditions
  D,1,UX,0
  D,1,UY,0
  D,1,UZ,0
  D,1,ROTX,0
  D,11,UY,0
  D,11,UZ,0

/SOLU
! Solution
  SFBEAM,ALL,2,PRES,5
  F,6,FY,-60000
  ~PCPL,0,
  SOLVE

/POST1
! Postprocessor
  ~CFSET,,1
  ~CHKPRS,2DB, ,0

!--------------------------------------------------------------------------------------
! DATA CHECK
!--------------------------------------------------------------------------------------
! Data comparison number
  NComp    = 3
  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)  = 'CRT_TOT1'
  LABEL( 2)  = 'CRT_TOT2'
  LABEL( 3)  = 'CRT_TOT3'

! Correct data
  VALUE(1,1)=0.347
  VALUE(2,1)=0.877
  VALUE(3,1)=1.402

! Obtained data
  ~PLLSPRS,CRT_TOT,1,
   *GET,VALUE(1,2),ELEM,2,ETAB,CFETAB_I
  ~PLLSPRS,CRT_TOT,1,
   *GET,VALUE(2,2),ELEM,4,ETAB,CFETAB_I
  ~PLLSPRS,CRT_TOT,1,
   *GET,VALUE(3,2),ELEM,6,ETAB,CFETAB_I

! Warning and error tolerances
  TOLER( 1, 1)= 1E-02 $ TOLER( 1, 2)= 1E-02
  TOLER( 2, 1)= 1E-02 $ TOLER( 2, 2)= 1E-02
  TOLER( 3, 1)= 1E-02 $ TOLER( 3, 2)= 1E-02

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

Results

Label	Target	CivilFEM	Ratio	Tolerance
CRT_TOT1	0.347	0.34664	1.001	0.01
CRT_TOT2	0.877	0.87662	1.000	0.01
CRT_TOT3	1.402	1.4017	1.000	0.01

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CFVR5261 - 2D bending EHE

Rectangular section and HA-35

Results