CFVR1255 - Shear design according to ITER Structural Design Code for Buildings
Design a concrete reinforced beam subjected to Shear force according to ITER Structural Design Code for Buildings
A 5m length cantilever has a T concrete reinforced section and is subjected to a uniform distributed load of 84 kN/m.
The aim of the example is to obtain the necessary steel amount according to ITER Structural Design Code for Buildings.
Element types used in the model: BEAM3 Needed CivilFEM Modules: |
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| Model Statistics | |
| Number of elements | 3 |
| Number of nodes | 4 |
| Number of civil materials | 2 |
| Number of cross sections | 1 |
| Number of shell vertices | 0 |
Log file: CFVR1255.DAT
FINISH ~CFCLEAR,,1 NomFile='CFVR1255' /TITLE,%NomFile% Shear design according to ITER Structural Design Code for Buildings ! ------------------------------------------------------------------------------------- ! Initial data ! ------------------------------------------------------------------------------------- ! CivilFEM SETUP ~UNITS,,LENG,M ~UNITS,,TIME,S ~UNITS,,FORC,KN ~CODESEL,EC3-92,ITER,EC2-08,,EC8-04 ! Preprocessor /PREP7 ! Parameters L=5 ! Length between supports, in m Q=84 ! Uniform distributed load in kN/m ! Material Definition ~CFMP,1,LIB,CONCRETE,EC2,C25/30 ~CFMP,2,LIB,REINF,EC2,S500 ! Element Type Definition ET,1,Beam3 ! Element Type 1: 2D Beam ! Cross-section definition ~CSECDMS,1,T,1,0.375,0.15,0.75,0.15 ! T Section ! Reinforcement definition ~RNFDEF,1,1,2,1,1,0.02,22E-4 ! Longitudinal reinforcement ~RNFMDF,1,1,UFC,2 ~RNFDEF,1,SHEAR,2,,,10.94E-4 ! Shear reinforcement ! Code properties definition ~SECMDF,1,EC2PROP ,REC ,,0.05 ! 5 cm Cover ~SECMDF,1,EC2PROP ,KEYAST,,0 ~SECMDF,1,EC2PROP ,RHO1 ,,0.045 ! Beam properties ~BMSHPRO,1,BEAM,1,1,,,3,1,,, ! Model Construction N,1 ! Nodes input N,2,L/2 N,3,3*L/4 N,4,L E,1,2 ! Elements input E,2,3 E,3,4 D,1,ALL ! Constraint conditions /SOLU SFBEAM,ALL,1,PRES,Q SOLVE ! Calculation /POST1 ! Postprocessor ~CFSET,,1,1 ! Read first load step ! Shear design ~DIMCON,SHT,SHEAR !-------------------------------------------------------------------------------------- ! DATA CHECK !-------------------------------------------------------------------------------------- ! Data comparison number NComp = 10 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) = 'VRDC' LABEL(2,1) = 'VRDS' LABEL(3,1) = 'DSG_CRT' LABEL(4,1) = 'VRDC' LABEL(5,1) = 'VRDS' LABEL(6,1) = 'DSG_CRT' LABEL(7,1) = 'VRDC' LABEL(8,1) = 'VRDS' LABEL(9,1) = 'ASSH' LABEL(10,1) = 'DSG_CRT' ! Correct values VALUE(1,1)=38.46 VALUE(2,1)=210 VALUE(3,1)=1.0 VALUE(4,1)=38.46 VALUE(5,1)=215.77725 VALUE(6,1)=0.0 VALUE(7,1)=38.46 VALUE(8,1)=105.000 VALUE(9,1)=8.256E-4 VALUE(10,1)=1.00 ! Comparison ~PLLSCON,VRDC *GET,VALUE(1,2),ELEM,2,ETAB,CFETAB_I *GET,VALUE(4,2),ELEM,1,ETAB,CFETAB_I *GET,VALUE(7,2),ELEM,3,ETAB,CFETAB_I ~PLLSCON,VRDS *GET,VALUE(2,2),ELEM,2,ETAB,CFETAB_I *GET,VALUE(5,2),ELEM,1,ETAB,CFETAB_I *GET,VALUE(8,2),ELEM,3,ETAB,CFETAB_I ~PLLSCON,ASSH *GET,VALUE(9,2),ELEM,3,ETAB,CFETAB_I ~PLLSCON,DSG_CRT *GET,VALUE(3,2),ELEM,2,ETAB,CFETAB_I *GET,VALUE(6,2),ELEM,1,ETAB,CFETAB_I *GET,VALUE(10,2),ELEM,3,ETAB,CFETAB_I ! Warning and error tolerances *DO,II,1,NComp TOLER(II,1)= 1E-02 $ TOLER(II,2)= 1E-02 *ENDDO TOLER( 9, 1)= 1E-06 $ TOLER( 9, 2)= 1E-06 !-------------------------------------------------------------------------------------- ! Results comparison !-------------------------------------------------------------------------------------- COMPARA.MAC |
Results
| Label | Target | CivilFEM | Ratio | Tolerance |
| VRDC | 38.46 | 38.458 | 1.000 | 0.01 |
| VRDS | 210 | 210 | 1.000 | 0.01 |
| DSG_CRT | 1 | 1 | 1.000 | 0.01 |
| VRDC | 38.46 | 38.458 | 1.000 | 0.01 |
| VRDS | 215.78 | 215.78 | 1.000 | 0.01 |
| DSG_CRT | 0 | 0 | 0.000 | 0.01 |
| VRDC | 38.46 | 38.458 | 1.000 | 0.01 |
| VRDS | 105 | 105 | 1.000 | 0.01 |
| ASSH | 0.0008256 | 0.00082564 | 1.000 | 1e-006 |
| DSG_CRT | 1 | 1 | 1.000 | 0.01 |
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