CFVR9180 - Bending + Axial force design according to ACI 318 19

Design this equivalent reinforced concrete beam, subjected to Bending + Axial force according to ACI 318 19, simulating a 1x1 m2 shell.

A fixed concrete shell is subjected to a list of axial forces and beding moments, in Z axis, from the CFVR9180.FM file
The aim of the example is to obtain the reinforcement factor according to ACI 318 19. The reinforcement will not be in spiral so "Other cases" option is selected.

Element types used in the model: BEAM3

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

Design test

Reinforced Concrete

ACI 318 19

Interaction diagram

Model Statistics
Number of elements	0
Number of nodes	0
Number of civil materials	0
Number of cross sections	0
Number of shell vertices	0

Log file: CFVR9180.DAT

! D_ESCRIPTION: CFVR9180.FM file is needed to run this test case.
   FINISH
  ~CFCLEAR,,1
   NomFile='CFV9180'
 /TITLE,%NomFile%, BENDING + AXIAL FORCE CHECKING ACCORDING TO ACI 318 19

! --------------------------------------------------------------------
! Initial data
! --------------------------------------------------------------------
! CivilFEM SETUP
 ~UNITS,SI    !m,s,Newton
 ~CODESEL,EC3-05,ACI_19
 
h=1.0       !Heigth
b=1.0       !Width

NELEM=22    !Number of elements the beam will be divided into

! Preprocessor
  /PREP7

! Material Definition
 ~CFMP,1,LIB,CONCRETE,ACI,fc_6000
 ~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,h,b
 
! Reinforcement definition
~RNFDEF,1,1,2,4,0,1.000E-06,10.000E-03, , , , , ,        	 ! Bot Reinf.: Total A.: 100 cm^2

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

! Model Construction
  N,1,,,                                   ! Nodes input
  N,NELEM+1,1
  FILL,1,NELEM+1
  E,1,2                                 ! Elements input
  EGEN,NELEM,1,1,1
  D,1,ALL                               ! Boundary conditions

/SOLU

  SOLVE               ! Calculation

/POST1

! Postprocessor
  ~CFSET,,1,1       ! Read first load step
  
  ~FMREAD,CFVR9180,FM     !File from which diagram points will be taken
  
! /PREP7  
! ~RNFMDF,1,1,AST,100.000E-06     !Design reinforcement
FINISH  
/POST1  
~DIMCON,2DB, ,0,0,200,0,0,0 !Other cases

!--------------------------------------------------------------------------------------
! DATA CHECK
!--------------------------------------------------------------------------------------
! Data comparison number
  NComp = NELEM
  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
*DO,JJ,1,NELEM
  LABEL(JJ,1) = 'REINFACT_I'
*ENDDO
  
! Correct values
*DO,JJ,1,NELEM
  VALUE(JJ,1)=1.0
*ENDDO

! Comparison
 ~CFSET,1 ! ALT 1
*DO,JJ,1,NELEM
 ~CFGET,VALUE(JJ,2), ELEMENT, JJ ,RESULT , REINFACT, I 
*ENDDO

! Warning and error tolerances
*DO,JJ,1,NELEM
 TOLER(JJ,1)= 0.04*VALUE(JJ,1) $ TOLER(JJ,2)= 0.04*VALUE(JJ,1)
*ENDDO

  
!--------------------------------------------------------------------------------------
! Results comparison
!--------------------------------------------------------------------------------------
  COMPARA.MAC

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CFVR9180 - Bending + Axial force design according to ACI 318 19

Design this equivalent reinforced concrete beam, subjected to Bending + Axial force according to ACI 318 19, simulating a 1x1 m2 shell.