CFVR1901 - Steel checking according to British Standard 5950 1985
Section Classification.
A steel cantilever beam with four different cross sections is subjected to an axial compression force and a vertical load.
Determine the section class according to BS 5950-85.
Element types used in the model: BEAM3 Needed CivilFEM Modules: |
|
| Model Statistics | |
| Number of elements | 4 |
| Number of nodes | 5 |
| Number of civil materials | 1 |
| Number of cross sections | 4 |
| Number of shell vertices | 0 |
Log file: CFVR1901.DAT
FINISH ~CFCLEAR,,1 NomFile='CFVR1901' /TITLE, %NomFile%, BS5950 1985: Section classification ! ------------------------------------------------------------------------------------- ! Initial data ! ------------------------------------------------------------------------------------- ! CivilFEM Setup: Code & Units ~UNITS,,LENG,CM ~UNITS,,TIME,S ~UNITS,,FORC,KN ~CODESEL,BS595085 /PREP7 ! Preprocessor ! -------------------------------------------------- ! Materials ~CFMP,1,LIB,STEEL,BS5950,Gr43 ! British Standard grade 43 ! Element Types ET,1,BEAM3 ! Type 1: 2D Beam ! Cross Sections ~SSECLIB,1,1,1,2 !IPE 100 ~SSECDMS,2,I,1,16,5.5e-001,15,9.4e-001,0 ! Shape defined by dimensions ~SSECLIB,3,1,1,9 !IPE 240 ~SSECDMS,4,I,1,172.4,1.7,18.2,7e-001,5e-001 ! Beam & Shell properties ~BMSHPRO,1,BEAM,1,1,,,3,1,0 ~BMSHPRO,2,BEAM,2,2,,,3,1,0 ~BMSHPRO,3,BEAM,3,3,,,3,1,0 ~BMSHPRO,4,BEAM,4,4,,,3,1,0 ! Nodes N, 1 $ N,5,500 $ FILL, 1,5 ! Elements REAL,1 E,1,2 EGEN,4,1,1,,,,,1 EPLOT /SOLU ! Solution ! -------------------------------------------------- ! Displacements D, 1,ALL ! Apply Load F,4,FY,-1 F,5,FX,-1 ! Solve SOLVE /POST1 ! Postprocessor ! -------------------------------------------------- ! Read results ~CFSET,,1,1 ! Load first load case ~CHKSTL,BENDING,-Z ! Plot section class ~PLLSSTL,CLASS !-------------------------------------------------------------------------------------- ! DATA CHECK !-------------------------------------------------------------------------------------- ! Data comparison number NComp = 8 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) = 'Class 1' LABEL(2,1) = 'Class 2' LABEL(3,1) = 'Class 3' LABEL(4,1) = 'Class 4' LABEL(5,1) = 'ClassWeb 1' LABEL(6,1) = 'ClassWeb 1' LABEL(7,1) = 'ClassWeb 1' LABEL(8,1) = 'ClassWeb 2' ! Correct values VALUE(1,1)=1 VALUE(2,1)=2 VALUE(3,1)=3 VALUE(4,1)=4 VALUE(5,1)=1 VALUE(6,1)=1 VALUE(7,1)=1 VALUE(8,1)=2 ! Obtained values *GET,VALUE(1,2),ELEM,1,ETAB,CLASS_J *GET,VALUE(2,2),ELEM,2,ETAB,CLASS_J *GET,VALUE(3,2),ELEM,3,ETAB,CLASS_J *GET,VALUE(4,2),ELEM,4,ETAB,CLASS_J ~PLLSSTL,WEBCLASS *GET,VALUE(5,2),ELEM,1,ETAB,CLASS_J *GET,VALUE(6,2),ELEM,2,ETAB,CLASS_J *GET,VALUE(7,2),ELEM,3,ETAB,CLASS_J *GET,VALUE(8,2),ELEM,4,ETAB,CLASS_J ! Warning and error tolerances TOLER( 1, 1)= 1E-9 $ TOLER( 1, 2)= 1E-9 TOLER( 2, 1)= 1E-9 $ TOLER( 2, 2)= 1E-9 TOLER( 3, 1)= 1E-9 $ TOLER( 3, 2)= 1E-9 TOLER( 4, 1)= 1E-9 $ TOLER( 4, 2)= 1E-9 TOLER( 5, 1)= 1E-9 $ TOLER( 5, 2)= 1E-9 TOLER( 6, 1)= 1E-9 $ TOLER( 6, 2)= 1E-9 TOLER( 7, 1)= 1E-9 $ TOLER( 7, 2)= 1E-9 TOLER( 8, 1)= 1E-9 $ TOLER( 8, 2)= 1E-9 !-------------------------------------------------------------------------------------- ! Results comparison !-------------------------------------------------------------------------------------- COMPARA.MAC |
Results
| Label | Target | CivilFEM | Ratio | Tolerance |
| Class 1 | 1 | 1 | 1.000 | 1e-009 |
| Class 2 | 2 | 2 | 1.000 | 1e-009 |
| Class 3 | 3 | 3 | 1.000 | 1e-009 |
| Class 4 | 4 | 4 | 1.000 | 1e-009 |
| ClassWeb | 1 | 1 | 1.000 | 1e-009 |
| ClassWeb | 1 | 1 | 1.000 | 1e-009 |
| ClassWeb | 1 | 1 | 1.000 | 1e-009 |
| ClassWeb | 2 | 2 | 1.000 | 1e-009 |
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