CFVR1276 - Cracking checking according to Eurocode 2 (2008)
check a reinforced concrete beam by cracking according to Eurocode 2 (2008)
A fixed beam which has a rectangular reinforced concrete section is subjected to two bending moments My= 300 kN*m; Mz= 300 kN*m
The aim of the example is to obtain the check criterion according to Eurocode 2 (2008).
Element types used in the model: BEAM188 Needed CivilFEM Modules: |
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| Model Statistics | |
| Number of elements | 20 |
| Number of nodes | 22 |
| Number of civil materials | 2 |
| Number of cross sections | 2 |
| Number of shell vertices | 0 |
Log file: CFVR1276.DAT
FINISH ~CFCLEAR,,1 NomFile='CFVR1276' /TITLE,%NomFile%, Cracking checking according to Eurocode 2 (2008) ! ------------------------------------------------------------------------------------- ! Initial data ! ------------------------------------------------------------------------------------- ! CivilFEM SETUP ~UNITS,SI ~CODESEL,EC3-05,EC2-08,EC2-08,,EC8-04 ! Preprocessor /PREP7 ! Material Definition ~CFMP,1,LIB,CONCRETE,EC2,C30/37 ~CFMP,2,LIB,REINF,EC2,S400 !Cross Section ~CSECDMS,1,REC,1,0.6,0.4,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ~RNFDEF,1,1,2,4,0,40.000E-03, , ,25,6, , ,0 ~RNFMDF,1,1,END,4 ~SECMDF,1,EC2PROP ,PHI ,,25 ,1,0,0 ~SECMDF,1,EC2PROP ,RHOR ,,7.363e-002,2,0,0 ~SECMDF,1,EC2PROP ,C ,,2.75e-002,2,0,0 ~CSECDMS,2,REC,1,0.4,0.6,0 ,0 ,0 ,0 ,0 ,0 ,0 ,0 ~RNFDEF,2,1,2,3,0,40.000E-03, , ,25,6, , ,0 ~RNFMDF,2,1,END,4 ~SECMDF,2,EC2PROP ,PHI ,,25 ,1,0,0 ~SECMDF,2,EC2PROP ,PHI ,,25 ,2,0,0 ~SECMDF,2,EC2PROP ,RHOR ,,7.363e-002,4,0,0 ~SECMDF,2,EC2PROP ,C ,,2.75e-002,4,0,0 ! Element Type Definition ET,1,Beam188 !Beam properties ~BMSHPRO,1,BEAM,1,1,,, 188,1,0,,Beam 1 ~BMSHPRO,2,BEAM,2,2,,, 188,1,0,,Beam 2 !Geometry K,1,0,0,0, K,2,1,0,0, K,3,0,2,0, K,4,1,2,0, LSTR, 1, 2 LSTR, 3, 4 !Meshing ESIZE,0.1 SECNUM, 1 LMESH,1 SECNUM, 2 LMESH,2 DK,1, , , ,0,ALL, , , , , , DK,3, , , ,0,ALL, , , , , , !Loads /SOLU FK,2,MZ,300000 FK,4,MY,-300000 SOLVE ! Load Step 1 /POST1 ! Postprocessor ~CFSET,,1,1 ! Read first load step ESEL,ELEM,5 ~CHKCON,CRACK, ,0,0.0001,0.8,0.4,3.4,0.425, ~PLLSCON,CRT_TOT,1, *GET,CRTTOT_Rect,ELEM,5,ETAB,CFETAB_I ESEL,ELEM,15 ~CHKCON,CRACK, ,1,0.0001,0.8,0.4,3.4,0.425, ~PLLSCON,CRT_TOT,1, *GET,CRTTOT_InvRect,ELEM,15,ETAB,CFETAB_I !-------------------------------------------------------------------------------------- ! DATA CHECK !-------------------------------------------------------------------------------------- ! Data comparison number NComp = 1 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) = 'CRT' ! Correct values VALUE(1,1) = CRTTOT_Rect ! Obtained values VALUE(1,2) = CRTTOT_InvRect ! Warning and error tolerances TOLER( 1, 1)= 1E-02 $ TOLER( 1, 2)= 1E-02 !-------------------------------------------------------------------------------------- ! Results comparison !-------------------------------------------------------------------------------------- COMPARA.MAC |
Results
| Label | Target | CivilFEM | Ratio | Tolerance |
| CRT | 1.4804 | 1.4804 | 1.000 | 0.01 |
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