CFVR4507 - GB50017: Bending and Shear Checking

A fixed-fixed Steel beam is subjected to a pressure load of 1000 kN, applied on one end of the beam.
The beam has a length of 1 m.
The cross section is a simple T with the following dimensions:

h = 127 mm
tw = 5.7 mm
b = 101.6 mm
tf = 6.8 mm

The beam is made of GB 50017 Q420 steel.
The aim of the example is to obtain bending and shear checking criterion according to GB 50017.

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

Steel

Code Checking/Design

GB 50017

Model Statistics
Number of elements	24
Number of nodes	25
Number of civil materials	1
Number of cross sections	1
Number of shell vertices	0

Log file: CFVR4507.DAT

  FINISH
  ~CFCLEAR,,1
  NomFile='CFVR4507'
  /TITLE, %NomFile%, GB50017: Bending and Shear Checking

! ---------------------------------------------------------------------------------
! Model definition
! ---------------------------------------------------------------------------------
! CivilFEM Setup: Code & Units
  ~UNITS,,LENG,M
  ~UNITS,,TIME,S
  ~UNITS,,FORC,KN
  ~CODESEL,GB50017,EC2-91,,,EC8-94

/PREP7
! Preprocessor
! --------------------------------------------------
! Materials
  ~CFMP,1,LIB,STEEL,GB50017,Q420   ! GB50017  Q420
! Element Types
  ET,1,BEAM3            ! Type 1: 2D Beam
! Cross sections
  ~SSECDMS,1,T,1,127E-3,5.7E-3,101.6E-3,6.8E-3,1.401E-3,112.6E-3
! Beam Properties
  ~BMSHPRO,1,BEAM,1,1,,,3,1,0,,Beam properties

! Nodes
  N, 1
  N,25,1
  FILL, 1,25
! Elements
  E,1,2
  EGEN,24,1,1
  EPLOT

/SOLU
! Solution
! --------------------------------------------------
! Displacements
  D, 1,ALL
  D,25,ALL
! Apply Load
  SFBEAM,ALL,1,PRES,1000
! Solve
  SOLVE

/POST1
! Postprocessor
! --------------------------------------------------
! Read results
  ~CFSET,,1,1       ! Read first load step
! GB50017 Check in Bending + Shear
  ~CHKSTL,BEND_SHR,

!--------------------------------------------------------------------------------------
! DATA CHECK
!--------------------------------------------------------------------------------------
  NComp    =  4
  NComp_ch =  0

! Marix 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) = 'SNMAX'
  LABEL(2,1) = 'SSMAX'
  LABEL(3,1) = 'SEQ'
  LABEL(4,1) = 'CRT_TOT'

! Correct values
  VALUE(1,1) = 1729710.05578161
  VALUE(2,1) = 0.0
  VALUE(3,1) = 1729710.0557816
  VALUE(4,1) = 4.138062334

! Obtained values
  ~PLLSSTL,SNMAX
  *GET,VALUE(1,2),ELEM,13,ETAB,CFETAB_I
  ~PLLSSTL,SSMAX
  *GET,VALUE(2,2),ELEM,13,ETAB,CFETAB_I
  ~PLLSSTL,SEQ
  *GET,VALUE(3,2),ELEM,13,ETAB,CFETAB_I
  ~PLLSSTL,CRT_TOT
  *GET,VALUE(4,2),ELEM,13,ETAB,CFETAB_I

! Warning and error tolerances
  TOLER(1,1) = 1E-4 $ TOLER(1,2) = 1E-4
  TOLER(2,1) = 1E-5 $ TOLER(2,2) = 1E-5
  TOLER(3,1) = 1E-4 $ TOLER(3,2) = 1E-4
  TOLER(4,1) = 1E-5 $ TOLER(4,2) = 1E-5

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

Results

Label	Target	CivilFEM	Ratio	Tolerance
SNMAX	1.7297e+006	1.7297e+006	1.000	0.0001
SSMAX	0	2.0269e-007	0.000	1e-005
SEQ	1.7297e+006	1.7297e+006	1.000	0.0001
CRT_TOT	4.1381	4.1381	1.000	1e-005

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CFVR4507 - GB50017: Bending and Shear Checking

Results