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CFVR4025 - Reinforced concrete checking according to GB 50010 Chinese code

Shear checking.

A concrete cantilever beam with rectangular section and shear & bending reinforcement is subjected to an axial compression force and vertical load at free end.
Determine the total criterion according to GB 50010.

Element types used in the model: BEAM4

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
Code Checking/Design
Reinforced Concrete
GB 50010

Model Statistics
Number of elements 20
Number of nodes 21
Number of civil materials 2
Number of cross sections 1
Number of shell vertices 0

Log file: CFVR4025.DAT


   FINISH
  ~CFCLEAR,,1
   NomFile='CFVR4025'
 /TITLE, %NomFile%, Axial+Shear checking according to GB50010
! -------------------------------------------------------------------------------------
! Initial data
! -------------------------------------------------------------------------------------
! CivilFEM SETUP
~UNITS,SI
 ~CODESEL,,GB50010

! Preprocessor
  /PREP7

! Parameters
  L=10         ! Length between supports, in m
  b=.3         ! Cross-section width in m.
  h=.5         ! Depth in m.

! Material Definition
  ~CFMP,1,LIB,CONCRETE,GB50010,C35
  ~CFMP,2,LIB,REINF,GB50010,HPB235
  ~CFMP,2,GB_S    ,GAMs    ,,1.10

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

! Cross-section definition
 ~CSECDMS,1,REC,1,h,b

! Reinforcement definition
 ~RNFDEF,1,1,2,2,0,0.04,,,16,2,,,4       ! Bot reinf. for bending
 ~RNFDEF,1,2,2,4,0,0.04,,,16,2,,,4       ! Top reinf. for bending
 ~RNFDEF,1,SHEAR,2,0,90.00, , , , ,0.2,10,2,2  ! Shear reinf.

! Beam properties
 ~BMSHPRO,1,BEAM,1,1,,,3,0,0,,Beam property

! Model Construction
  N,1                                   ! Nodes input
  N,21,L
  FILL,1,21

  E,1,2                                 ! Elements input
  EGEN,20,1,1,1

/SOLU
   D,1,ALL                              ! Constraint conditions
   F,21,FY,-50000
   F,21,FX,-3000
 SOLVE                ! Calculation

/POST1

! Postprocessor
  ~CFSET,,1,1       ! First load step

! Shear in Y checking according to GB50010
  ~CHKCON,SHT,SHEAR

!--------------------------------------------------------------------------------------
! DATA CHECK
!--------------------------------------------------------------------------------------
! Data Comparison number
  NComp = 4
  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) = 'VRD1'
  LABEL(2,1) = 'VRD2'
  LABEL(3,1) = 'VRD3'
  LABEL(4,1) = 'CRT_TOT'

! Correct values
  VALUE(1,1)=0.577E6
  VALUE(2,1)=0.152E6
  VALUE(3,1)=0.249E6
  VALUE(4,1)=0.2

! Comparison
 ~PLLSCON,VRD1
 *GET,VALUE(1,2),ELEM,1,ETAB,CFETAB_J
 ~PLLSCON,VRD2
 *GET,VALUE(2,2),ELEM,1,ETAB,CFETAB_J
 ~PLLSCON,VRD3
 *GET,VALUE(3,2),ELEM,1,ETAB,CFETAB_J
 ~PLLSCON,CRT_TOT
 *GET,VALUE(4,2),ELEM,1,ETAB,CFETAB_J

! Warning and error tolerances
  TOLER( 1, 1)= 1E+3    $ TOLER( 1, 2)= 1E+3        ! Rounding error accepted
  TOLER( 2, 1)= 1E+3    $ TOLER( 2, 2)= 1E+3        ! Rounding error accepted
  TOLER( 3, 1)= 1E+3    $ TOLER( 3, 2)= 1E+3        ! Rounding error accepted
  TOLER( 4, 1)= 1E-3    $ TOLER( 4, 2)= 1E-3

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

Results

LabelTargetCivilFEMRatioTolerance
VRD1 5.77e+0055.7684e+0051.000 1000
VRD2 1.52e+0051.5232e+0050.998 1000
VRD3 2.49e+0052.4879e+0051.001 1000
CRT_TOT 0.2 0.200970.995 0.001


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