CFVR4017 - Reinforced concrete design according to GB 50010 Chinese code
Torsion desing.
A concrete cantilever beam with rectangular shape section and shear & torsion reinforcement is subjected to a vertical load and torsion moment at free end.
Determine the area per unit length of torsional transverse reinforcement and total area of torsional longitudinal reinforcement according to GB 50010.
Element types used in the model: BEAM4 Needed CivilFEM Modules: |
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| Model Statistics | |
| Number of elements | 4 |
| Number of nodes | 5 |
| Number of civil materials | 2 |
| Number of cross sections | 1 |
| Number of shell vertices | 0 |
Log file: CFVR4017.DAT
FINISH ~CFCLEAR,,1 NomFile='CFVR4017' /TITLE, %NomFile%, TORSION DESIGN ACCORDING TO GB50010 ! ------------------------------------------------------------------------------------- ! Initial data ! ------------------------------------------------------------------------------------- ! CivilFEM SETUP ~UNITS,,LENG,M ~UNITS,,TIME,S ~UNITS,,FORC,KN ~CODESEL,,GB50010 ! Preprocessor /PREP7 ! Parameters L=1 ! Length in m b=.4 ! Cross-section width in m. h=.3 ! Depth in m. T=25. ! Torsional moment in KN*m Q=4.7 ! Maximum concomitant design shear force in Mp ! Material Definition ~CFMP,1,LIB,CONCRETE,GB50010,C25 ~CFMP,2,LIB,REINF,GB50010,HRB400 ~CFMP,2,GB_S ,GAMs ,,1.10 ! Element Type Definition ET,1,Beam4 ! Element Type 1: 3D Beam ! Cross-section definition ~CSECDMS,1,REC,1,0.3,0.4 ! Reinforcement definition ~RNFDEF,1,TORSION,2,1e-4, , , ,1e-4, , ! Beam properties ~BMSHPRO,1,BEAM,1,1,,,4,0,0,,Beam property ! Model Construction N,1 ! Nodes input N,5,L FILL,1,5 E,1,2 ! Elements input EGEN,4,1,1,1 D,1, , , , , ,ALL ! Constraint conditions /SOLU F,5,FY,-Q F,5,MX,T SOLVE ! Calculation /POST1 ! Postprocessor ~CFSET,,1,1 ! First load step ! Torsion design according to GB50010 ~DIMCON,SHT,TORSION !-------------------------------------------------------------------------------------- ! DATA CHECK !-------------------------------------------------------------------------------------- ! Data Comparison number NComp = 3 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) = 'TRD1' LABEL(2,1) = 'ASTT' LABEL(3,1) = 'ASLT' ! Correct values VALUE(1,1)=0.322E2 VALUE(2,1)=0.564E-3 VALUE(3,1)=0.732E-3 ! Comparison ~PLLSCON,TRD1 *GET,VALUE(1,2),ELEM,3,ETAB,CFETAB_J ~PLLSCON,ASTT *GET,VALUE(2,2),ELEM,3,ETAB,CFETAB_J ~PLLSCON,ASLT *GET,VALUE(3,2),ELEM,3,ETAB,CFETAB_J ! Warning and error tolerances TOLER( 1,1)= 1E-1 $ TOLER( 1,2)= 1E-1 TOLER( 2,1)= 1E-5 $ TOLER( 2,2)= 1E-5 TOLER( 3,1)= 1E-5 $ TOLER( 3,2)= 1E-5 !-------------------------------------------------------------------------------------- ! Results comparison !-------------------------------------------------------------------------------------- COMPARA.MAC |
Results
| Label | Target | CivilFEM | Ratio | Tolerance |
| TRD1 | 32.2 | 32.246 | 0.999 | 0.1 |
| ASTT | 0.000564 | 0.00056445 | 0.999 | 1e-005 |
| ASLT | 0.000732 | 0.00073152 | 1.001 | 1e-005 |
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