CFVR7287 - Bending + Axial force checking according to ACI 349 13

Element types used in the model: BEAM3

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

  FINISH
  ~CFCLEAR,,1
  NomFile='CFVR7287'
  /TITLE,%NomFile%, Bending + Axial force checking according to ACI 349 13
! -------------------------------------------------------------------------------------
! Initial data
! -------------------------------------------------------------------------------------
! CivilFEM SETUP
  ~UNITS,BIN    !in,sg,Pound force
~CODESEL,EC3-05,ACI34913,EC2-08,,EC8-04

! Preprocessor
  /PREP7

! Material Definition
 ~CFMP,1,LIB,CONCRETE,ACI,fc_4000
 ~CFMP,2,LIB,REINF,ACI,fy_60000

! Element Type Definition
  ET,1,Beam3                            ! Element Type 1: 2D Beam

! Cross-section definition
 ~CSECDMS,1,I,1,21.56,10,30,2.5,15,5

! Reinforcement definition
 ~RNFDEF,1,1,2,2,0,2.56,3.0           ! Total Reinf. Area=3 in^2

! Beam & Shell property
 ~BMSHPRO,1,BEAM,1,1,,,3,1,,,Beam property

! Model Construction
  N,1                                   ! Nodes input
  N,5,200
  FILL,1,5
  E,1,2                                 ! Elements input
  EGEN,4,1,1,1
  D,1,ALL                               ! Boundary conditions

/SOLU
  M=3000000           ! 250 ft·kips bending moment
  F,5,MZ,M
  SOLVE               ! Calculation

/POST1

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

! Bending + Axial checking for I sections according to ACI
  ~CHKCON,2DB,,0    !Other cases
  
! Plot the interaction diagram
  ~PL2DINT,BEAM,1,I,,,,,,MZ
!--------------------------------------------------------------------------------------
! DATA CHECK
!--------------------------------------------------------------------------------------
! Data comparison number
  NComp = 2
  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) = 'CRTC2D_I'
  LABEL(2,1) = 'CRTC2D_J'

! Correct values
  VALUE(1,1)=1.017
  VALUE(2,1)=1.017

! Comparison
 ~PLLSCON,CRT_TOT
 *GET,VALUE(1,2),ELEM,4,ETAB,CFETAB_I
 ~PLLSCON,CRT_TOT
 *GET,VALUE(2,2),ELEM,4,ETAB,CFETAB_J

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