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CFVR4607 - 2D frame seismic analysis according to EAK 2000

Example to check the seismic design utility

An example that checks forces and moments obtained on a a 2D frame seismic analysis according to EAK 2000

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
Seismic
EAK 2000


Model Statistics
Number of elements 90
Number of nodes 87
Number of civil materials 1
Number of cross sections 2
Number of shell vertices 0

Log file: CFVR4607.DAT


   FINISH
  ~CFCLEAR,,1
  NomFile='CFVR4607'
  /TITLE, %NomFile%, Seismic analysis of a 2D frame according to EAK 2000

! ----------------------------------------------------------------------
! Initial data
! ----------------------------------------------------------------------
! CivilFEM SETUP
  ~UNITS,SI
  ~CODESEL,,,,,EAK2000

/PREP7
! Preprocessor
! ----------------------------------------------------------------------
! Define materials
  ~CFMP,1,LIB,STEEL,EA,A42  ! Material: Steel A-42
! Define element types
  ET,1,BEAM3 ! Beam 2D
! Define sections
  ~SSECLIB,1,1,6,11                   ! Real 1: HEB-300 for Beam3 (Columns)
  ~SSECLIB,2,1,6,15                   ! Real 2: HEB-400 for Beam3 (Beams)
  ~BMSHPRO,1,BEAM,1,1,,,3,,0,,        ! Constant Section (Sec 1)
  ~BMSHPRO,2,BEAM,2,2,,,3,,0,,        ! Constant Section (Sec 2)
! Solid model
  ! Column at X=0
    K,1
    K,2,,4
    K,3,,3.5+4
    K,4,,3.5+4+3.5
    L,1,2
    L,2,3
    L,3,4
  ! Columns at X=5 and 10
    LGEN,3,1,3,,5,,,4
  ! Column Attributes
    LATT,1,1,1
  ! Beams
    L,2,6
    LGEN,2,10,10,,5,,,4
    LGEN,3,10,11,,,3.5,,1
  ! Beams Attributes
    LSEL,S,,,10,15
    LATT,1,2,1
    LSEL,ALL
! Constraints
    DK,1,ALL
    DK,5,ALL
    DK,9,ALL
! Mesh
    ESIZE,,6      ! 6 Elements in each member
    LMESH,ALL
    /ESHAPE,1
    EPLOT
    /IMAGE,SAVE,%NomFile%,BMP

/SOLU
! CivilFEM Seismic Design
! ----------------------------------------------------------------------
! Define spectrum
  ~DEFSPEC,ALL,I,A,DESIGN,1,5,1.3,0.9
! Get Modes
  ~MODLSOL,20 ! Get 20 modes
! Combine the modes
  ~CMBMOD,HORIZONT,VERTICAL,NONE,0,0.0001

/POST1
  ~CFSET,,2
! Postprocessor
! ----------------------------------------------------------------------
! Plot of the bending moments about the Z axis
  ~PLLSFOR,M,Z,-1

! ----------------------------------------------------------------------
! DATA CHECK
! ----------------------------------------------------------------------
! Data comparision number
  NComp    =  6
  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)  = 'FX_06_J'
  LABEL(2)  = 'FY_06_J'
  LABEL(3)  = 'MZ_06_J'
  LABEL(4)  = 'FX_66_J'
  LABEL(5)  = 'FY_66_J'
  LABEL(6)  = 'MZ_66_J'

! Correct data
! ----------------------------------------------------------------------
  VALUE(1,1) = 14270
  VALUE(2,1) =  7338
  VALUE(3,1) = 12639
  VALUE(4,1) =  1543
  VALUE(5,1) =  7441
  VALUE(6,1) = 20913

! Obtained data
! ----------------------------------------------------------------------
  ~CFGET,VALUE(1,2),ELEMENT, 6,FORCE,FX,J
  ~CFGET,VALUE(2,2),ELEMENT, 6,FORCE,FY,J
  ~CFGET,VALUE(3,2),ELEMENT, 6,FORCE,MZ,J
  ~CFGET,VALUE(4,2),ELEMENT,66,FORCE,FX,J
  ~CFGET,VALUE(5,2),ELEMENT,66,FORCE,FY,J
  ~CFGET,VALUE(6,2),ELEMENT,66,FORCE,MZ,J

! Warning and error tolerances
! ----------------------------------------------------------------------
   *DO,II,1,NComp
     TOLER(II, 1)= 10 $ TOLER(II, 2)= 10
   *ENDDO

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

Results

LabelTargetCivilFEMRatioTolerance
FX_06_J 14270 142711.000 10
FY_06_J 7338 7337.91.000 10
MZ_06_J 12639 126401.000 10
FX_66_J 1543 1543.31.000 10
FY_66_J 7441 7441.51.000 10
MZ_66_J 20913 209141.000 10


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