Element types used in the model: BEAM4

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

   FINISH
  ~CFCLEAR,,1
   NomFile='CFVR1310'
 /TITLE,%NomFile%, TORSION CHECKING ACCORDING TO ACI 318

! -------------------------------------------------------------------------------------
! Initial data
! -------------------------------------------------------------------------------------
! CivilFEM SETUP
~UNITS,,LENG,M
~UNITS,,TIME,S
~UNITS,,FORC,MP
~CODESEL,,ACI

! Preprocessor
  /PREP7

! Parameters
  L=1              ! Length in m
  b=.4             ! Cross-section width in m.
  h=.3             ! Depth in m.
  T=0.95*1.6       ! Torsional moment in Mp*m
  Q=4.7*1.6        ! Maximum concomitant design shear force in Mp

! Material Definition
 ~CFMP,1,LIB,CONCRETE,ACI,fc_3500
 ~CFMP,2,LIB,REINF,ACI,fy_60000

! Element Type Definition
  ET,1,Beam4                           ! Element Type 1: 2D Beam

! Cross-section definition
 ~CSECDMS,1,REC,1,0.3,0.4
! Reinforcement definition
 ~RNFDEF,1,TORSION,2,3.03e-4, , , ,3.27e-4, ,
! Beam & Shell properties
  ~BMSHPRO,1,BEAM,1,1,,,4,0,0,,Beam property

! Model Construction
  N,1                                  ! Nodes input
  N,5,L
  FILL,1,5
  E,1,2                                ! Elements input
  EGEN,4,1,1,1
  D,1,ALL                              ! Boundary conditions

/SOLU
  F,5,FY,-Q
  F,5,MX,T
  SOLVE               ! Calculation

/POST1

! Postprocessor
  ~CFSET,,1,1       ! Read first load step

! Torsion checking according to ACI
  ~CHKCON,SHT,TORSION

!--------------------------------------------------------------------------------------
! DATA CHECK
!--------------------------------------------------------------------------------------
! Data comparison number
  NComp = 3
  NComp_ch = 0

! Matrix 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(1,1) = 'TN'
  LABEL(2,1) = 'TFI'
  LABEL(3,1) = 'CRT_TOT'

! Correct values
  VALUE(1,1)=1.560
  VALUE(2,1)=1.170
  VALUE(3,1)=1.30

! Comparison
 ~PLLSCON,TN
 *GET,VALUE(1,2),ELEM,3,ETAB,CFETAB_J
 ~PLLSCON,TFI
  *GET,VALUE(2,2),ELEM,3,ETAB,CFETAB_J
 ~PLLSCON,CRT_TOT
  *GET,VALUE(3,2),ELEM,3,ETAB,CFETAB_J

! Warning and error tolerances
  TOLER( 1, 1)= 1E-01 $ TOLER( 1, 2)= 1E-01
  TOLER( 2, 1)= 1E-01 $ TOLER( 2, 2)= 1E-01
  TOLER( 3, 1)= 1E-01 $ TOLER( 3, 2)= 1E-01
!--------------------------------------------------------------------------------------
! Results comparison
!--------------------------------------------------------------------------------------
  COMPARA.MAC