!*************************************************************************************!
! TITLE: CFVR1303 - Bending + Axial force checking according to ACI 318
! SUBTITLE: Check a reinforced concrete beam subjected to Bending + Axial force according to ACI 318
!
! DESCRIPTION: A fixed beam which has a rectangular reinforced concrete section is subjected to
! DESCRIPTION: an axial compression force of 53.5 kips and a bending moment of 245 ft-kips.
! DESCRIPTION:
! DESCRIPTION: The aim of the example is to obtain the check criterion according to ACI 318.
! DESCRIPTION:
! DESCRIPTION: Notes on ACI 318-95, PCA Association, 1996, Page 11-12 & 11-16, EX. 11.2
! DESCRIPTION:
!
! ELEMENT TYPE: BEAM3
! MODULES:
! UNITS: BIN
! KEYWORD1: Beam
! KEYWORD2: Cross Section
! KEYWORD3: Code Checking/Design
! KEYWORD4: Reinforced Concrete
! KEYWORD5: ACI 318
!
!*************************************************************************************!
   FINISH
  ~CFCLEAR,,1
   NomFile='CFVR1303'
 /TITLE,%NomFile%, BENDING + AXIAL FORCE CHECKING ACCORDING TO ACI 318

! --------------------------------------------------------------------
! Initial data
! --------------------------------------------------------------------
! CivilFEM SETUP
 ~UNITS,BIN    !in,sg,Pound force
 ~CODESEL,,ACI

! Preprocessor
  /PREP7

! Material Definition
 ~CFMP,1,LIB,CONCRETE,ACI,fc_5000
 ~CFMP,2,LIB,REINF,ACI,fy_60000

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

! Cross-section definition
 ~CSECDMS,1,REC,1,18,18
! Reinforcement definition
 ~RNFDEF,1,1,2,2,0,1.87,3.810   ! Top Reinf.: Total A.: 3.81 in^2, Mech. cover:1.87 in
 ~RNFDEF,1,2,2,4,0,1.87,3.810   ! Bot Reinf.: Total A.: 3.81 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=2940000           ! 245 FT-KIPS bending moment
  H=-53.5e3           ! 53.5 kips axial compression force
  F,5,FX,H
  F,5,MZ,M
  SOLVE               ! Calculation

/POST1

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

! Bending + Axial checking for rectangular sections according to ACI
  ~CHKCON,2DB,,0
  
! Plot 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)=0.91
  VALUE(2,1)=0.91

! 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