CFVR7906 - CTE DB SE-A test:Axial and Biaxial Bending

Axial and Biaxial bending checking according to CTE DB SE-A

A cantilever steel beam subjected to a Fx load of -500 kN,a bending moment My of 30 kN*m and a bending moment of 80 kN*m applied to an end of the beam.
The beam has a length of 1 m.
The cross section is a HE 200 B.
The beam is made of Fe 430 steel which has a fy of 275000 kN/m².
The aim of the example is to obtain the cross section classification and the axial and biaxial bending criterion according to CTE DB SE-A.

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

Steel

Code Checking/Design

CTE

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: CFVR7906.DAT

   FINISH
  ~CFCLEAR,,1
  NomFile='CFVR7906'
  /TITLE, %NomFile%, CTESEA test: Axial and Biaxial Bending

! ---------------------------------------------------------------------------------
! Model definition and solve
! ---------------------------------------------------------------------------------
! CivilFEM Setup: Code & Units
  ~UNITS,,LENG,M
  ~UNITS,,TIME,S
  ~UNITS,,FORC,KN
  ~CODESEL,CTESEA,EC2,,,EC8-94
/PREP7
! Materials
  ~CFMP,1,LIB,STEEL,EC3,Fe 430      ! Fe 430

! Element type
  ET,1,BEAM4 ! Type 1: 3D Beam

! Cross Sections
~SSECLIB,1,1,6,6   !HE 200 B

! Beam properties
  ~BMSHPRO,1,BEAM,1,1,,,4,1,0,,Beam 1

! Nodes
 N, 1
 N,25,1
 FILL,1,25
! Elements
  E,1,2
  EGEN,24,1,1
  EPLOT
/SOLU
! Restraints
  D, 1,ALL
! Apply Load
  F,25,FX,-500
  F,25,MY,30
  F,25,MZ,80
! Solve
  SOLVE
/POST1
! Read results
  ~CFSET,,1,1       ! Read the first load step
! Check Axial+Biaxial bending
  ~CHKSTL,BEND_AXL,-Z,PARTIAL

!--------------------------------------------------------------------------------------
! DATA CHECK
!--------------------------------------------------------------------------------------
! Data comparison number
  NComp = 8
  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) = 'CLASS'
  LABEL( 2,1) = 'NCRD'
  LABEL( 3,1) = 'CRT_N'
  LABEL( 4,1) = 'CRT_MY'
  LABEL( 5,1) = 'CRT_MZ'
  LABEL( 6,1) = 'MNyRd'
  LABEL( 7,1) = 'MNzRd'
  LABEL( 8,1) = 'Crit'

! Correct values
!-------------------------------------------------------------------------------------
  VALUE( 1,1)=    1
  VALUE( 2,1)=2042.85714
  VALUE( 3,1)=   0.24476
  VALUE( 4,1)=   0.4754
  VALUE( 5,1)=   0.374576
  VALUE( 6,1)= 168.27381
  VALUE( 7,1)=  80.09
  VALUE( 8,1)=   0.84999

! Obtained values
!--------------------------------------------------------------------------------------
 ~PLLSSTL,CLASS
 *GET,VALUE( 1,2),ELEM,1,ETAB,CLASS_J
 ~PLLSSTL,NCRD
 *GET,VALUE( 2,2),ELEM,1,ETAB,CFETAB_J
 ~PLLSSTL,CRT_N
  *GET,VALUE( 3,2),ELEM,1,ETAB,CFETAB_J
 ~PLLSSTL,CRT_MY
  *GET,VALUE( 4,2),ELEM,1,ETAB,CFETAB_J
 ~PLLSSTL,CRT_MZ
  *GET,VALUE( 5,2),ELEM,1,ETAB,CFETAB_J
 ~PLLSSTL,MNYRD
  *GET,VALUE( 6,2),ELEM,1,ETAB,CFETAB_J
 ~PLLSSTL,MNZRD
 *GET,VALUE( 7,2),ELEM,1,ETAB,CFETAB_J
 ~PLLSSTL,CRT_TOT
 *GET,VALUE(8,2),ELEM,1,ETAB,CFETAB_J

! Warning and error tolerances
  TOLER( 1,1)= 0      $ TOLER( 1,2)= 0
  TOLER( 2,1)= 1E1    $ TOLER( 2,2)= 1E1
  TOLER( 3,1)= 1E-1   $ TOLER( 3,2)= 1E-1
  TOLER( 4,1)= 1E-2   $ TOLER( 4,2)= 1E-2
  TOLER( 5,1)= 1E-2   $ TOLER( 5,2)= 1E-2
  TOLER( 6,1)= 1E-2   $ TOLER( 6,2)= 1E-2
  TOLER( 7,1)= 1E-3   $ TOLER( 7,2)= 1E-3
  TOLER( 8,1)= 1E-2   $ TOLER( 8,2)= 1E-2

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

Results

Label	Target	CivilFEM	Ratio	Tolerance
CLASS	1	1	1.000	0
NCRD	2042.9	2045	0.999	10
CRT_N	0.24476	0.2445	1.001	0.1
CRT_MY	0.4754	0.47542	1.000	0.01
CRT_MZ	0.37458	0.37458	1.000	0.01
MNyRd	168.27	168.27	1.000	0.01
MNzRd	80.09	80.09	1.000	0.001
Crit	0.84999	0.84999	1.000	0.01

Contains proprietary and confidential information of Ingeciber, S.A.

CivilFEM Online Help

CFVR7906 - CTE DB SE-A test:Axial and Biaxial Bending

Axial and Biaxial bending checking according to CTE DB SE-A

Results