CFVR4506 - GB50017: Bending and Shear Checking

A pinned-pinned Steel beam is subjected to a compression load of 500 kips, applied on one end of the beam.
The beam has a length of 30 ft
The cross section is a Double T, W 27x84.
The beam is made of GB 50017 Q420 steel.
The aim of the example is to obtain bending and shear checking criterion according to GB50017.

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	30
Number of nodes	31
Number of civil materials	1
Number of cross sections	1
Number of shell vertices	0

Log file: CFVR4506.DAT

  FINISH
  ~CFCLEAR,,1
  NomFile='CFVR4506'
  /TITLE, %NomFile%, GB50017: Bending and Shear Checking

! ---------------------------------------------------------------------------------
! Model definition
! ---------------------------------------------------------------------------------
! CivilFEM Setup: Code & Units
  ~CODESEL,GB50017,EC2-91,,,EC8-94
  ~UNITS,,LENG,FT
  ~UNITS,,TIME,S
  ~UNITS,,FORC,KIPS
  ~UNITS,,PRES,,0,uuP
  ~UNITS,,MASS,,0,uuM

/PREP7
! Preprocessor
! --------------------------------------------------
! Materials
  ~CFMP,1,LIB,STEEL,GB50017,Q420   ! GB50017  Q420
! Element Types
  ET,1,Beam3
! Cross Section
  ~SSECLIB,1,1,51,91   ! W 27x84   I Double T
! Beam & Shell Property
  ~BMSHPRO,1,BEAM,1,1,,,3,1,0,,Beam 1
! Member property
  ~MEMBPRO,1,GB50017,ALL,0.0,0.0,0,0,30.0,1.0,1.0

! Nodes
  N,1
  N,31,30,
  FILL,1,31,29, , ,1,1,1,
! Elements
  E,1,2
  EGEN,30,1,1,1

! Solution
! --------------------------------------------------
/SOLU
! Constrains
  D,1, , , , , ,UX,UY
  D,31, , , , , ,UX,UY
  D,16, , , , , ,UX
! Apply Load
  F,16,FY,-500
! Solve
  SOLVE

/POST1
! Postprocessor
! --------------------------------------------------
! Read results
  ~CFSET,,1,1                  ! First load step
! Shear+bending checking
  ~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) = -24293.85210233
  VALUE(2,1) = 2930.02127082
  VALUE(3,1) = 24818.2659328
  VALUE(4,1) = 3.000770203

! 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) = 1E1  $ TOLER(1,2) = 1E1
  TOLER(2,1) = 1E-5 $ TOLER(2,2) = 1E-5
  TOLER(3,1) = 1E1  $ TOLER(3,2) = 1E1
  TOLER(4,1) = 1E-3 $ TOLER(4,2) = 1E-3

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

Results

Label	Target	CivilFEM	Ratio	Tolerance
SNMAX	-24294	-24292	1.000	10
SSMAX	2930	2930	1.000	1e-005
SEQ	24818	24817	1.000	10
CRT_TOT	3.0008	3.0006	1.000	0.001

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

CivilFEM Online Help

CFVR4506 - GB50017: Bending and Shear Checking

Results