CFVR2602 - BS 5950 2001 test: Pure bending
British Standard 5950-2001 test for bending without axial force.
A pinned-pinned steel beam is subjected to a surface load of 2.75kN/m
The beam has a length of 1200 m. the cross section is a IPE 200.
The beam is made of Fe BS595085 GR50 steel.
The aim of the example is to obtain the cross section classification, and bending checking criterion according to BS 5950 2001.
Element types used in the model: BEAM3 Needed CivilFEM Modules: |
|
| Model Statistics | |
| Number of elements | 24 |
| Number of nodes | 25 |
| Number of civil materials | 1 |
| Number of cross sections | 1 |
| Number of shell vertices | 0 |
Log file: CFVR2602.DAT
FINISH ~CFCLEAR,,1 NomFile='CFVR2602' /TITLE, %NomFile%, BS 5950 2001 test: Pure bending !-------------------------------------------------------------------------------------- ! Model definition and solve !-------------------------------------------------------------------------------------- ! CivilFEM Setup: Code & Units ~UNITS,,LENG,cM ~UNITS,,TIME,S ~UNITS,,FORC,KP ~CODESEL,BS595001,EC2,,,EC8-94 /PREP7 ! Preprocessor ! -------------------------------------------------- ! Materials ~CFMP,1,LIB,STEEL,BS5950,GR50 ! BS595085 GR50 ! Element Types ET,1,BEAM3 ! Type 1: 2D Beam ! Cross Sections ~SSECLIB,1,1,1,7 !IPE 200 ! Beam & Shell properties ~BMSHPRO,1,BEAM,1,1,,,3,1,0, ! Nodes N, 1 N,25,1200 FILL, 1,25 ! Elements E,1,2 EGEN,24,1,1 EPLOT /SOLU ! Solution ! -------------------------------------------------- ! Displacements D, 1,UX D, 1,UY D,25,UY ! Apply Load SFBEAM,ALL,1,PRES,2.75 ! Kp/cm SOLVE /POST1 ! Postprocessor ! -------------------------------------------------- ! Read results ~CFSET,,1,1 ! Load first load step ! Plot bending moment MZ ~PLLSFOR,M,Z,-3 ! British Standard 5950 (2001) Check for Bending ~CHKSTL,BENDING,-Z !-------------------------------------------------------------------------------------- ! DATA CHECK !-------------------------------------------------------------------------------------- NComp = 12 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' LABEL(2,1 ) = 'WEBCLASS' LABEL(3,1 ) = 'CRT_TOT' LABEL(4,1 ) = 'CRT_V' LABEL(5,1 ) = 'CRT_M' LABEL(6,1 ) = 'CRT_PV' LABEL(7,1 ) = 'FV' LABEL(8,1 ) = 'MX' LABEL(9,1 ) = 'PV' LABEL(10,1) = 'VCR' LABEL(11,1) = 'MC' LABEL(12,1) = 'MDF' ! Correct values VALUE(1,1 ) = 1 VALUE(2,1 ) = 1 VALUE(3,1 ) = 0.61986 VALUE(4,1 ) = 0.0 VALUE(5,1 ) = 0.61986 VALUE(6,1 ) = 0.0 VALUE(7,1 ) = 0.0 VALUE(8,1 ) = -495000. VALUE(9,1 ) = 24326. VALUE(10,1) = 189655. VALUE(11,1) = 798570. VALUE(12,1) = 220.600 ! Obtained values ~PLLSSTL,CLASS *GET,VALUE(1,2),ELEM,13,ETAB,CLASS_I ~PLLSSTL,WEBCLASS *GET,VALUE(2,2),ELEM,13,ETAB,CLASS_I ~PLLSSTL,CRT_TOT *GET,VALUE(3,2),ELEM,13,ETAB,CFETAB_I ~PLLSSTL,CRT_V *GET,VALUE(4,2),ELEM,13,ETAB,CFETAB_I ~PLLSSTL,CRT_M *GET,VALUE(5,2),ELEM,13,ETAB,CFETAB_I ~PLLSSTL,CRT_PV *GET,VALUE(6,2),ELEM,13,ETAB,CFETAB_I ~PLLSSTL,FV *GET,VALUE(7,2),ELEM,13,ETAB,CFETAB_I ~PLLSSTL,MX *GET,VALUE(8,2),ELEM,13,ETAB,CFETAB_I ~PLLSSTL,PV *GET,VALUE(9,2),ELEM,13,ETAB,CFETAB_I ~PLLSSTL,VW *GET,VALUE(10,2),ELEM,13,ETAB,CFETAB_I ~PLLSSTL,MC *GET,VALUE(11,2),ELEM,13,ETAB,CFETAB_I ~PLLSSTL,MDF *GET,VALUE(12,2),ELEM,13,ETAB,CFETAB_I ! Warning and error tolerances TOLER(1,1 ) = 0 $ TOLER(1,2 ) = 0 TOLER(2,1 ) = 0 $ TOLER(2,2 ) = 0 TOLER(3,1 ) = 1E-4 $ TOLER(3,2 ) = 1E-4 TOLER(4,1 ) = 1E-5 $ TOLER(4,2 ) = 1E-5 TOLER(5,1 ) = 1E-4 $ TOLER(5,2 ) = 1E-4 TOLER(6,1 ) = 1E-5 $ TOLER(6,2 ) = 1E-5 TOLER(7,1 ) = 1E-5 $ TOLER(7,2 ) = 1E-5 TOLER(8,1 ) = 1E-5 $ TOLER(8,2 ) = 1E-5 TOLER(9,1 ) = 1E0 $ TOLER(9,2 ) = 1E0 TOLER(10,1) = 1E0 $ TOLER(10,2) = 1E0 TOLER(11,1) = 1E0 $ TOLER(11,2) = 1E0 TOLER(12,1) = 1E0 $ TOLER(12,2) = 1E0 !-------------------------------------------------------------------------------------- ! Results comparison !-------------------------------------------------------------------------------------- COMPARA.MAC |
Results
| Label | Target | CivilFEM | Ratio | Tolerance |
| CLASS | 1 | 1 | 1.000 | 0 |
| WEBCLASS | 1 | 1 | 1.000 | 0 |
| CRT_TOT | 0.61986 | 0.61986 | 1.000 | 0.0001 |
| CRT_V | 0 | 1.1665e-014 | 0.000 | 1e-005 |
| CRT_M | 0.61986 | 0.61986 | 1.000 | 0.0001 |
| CRT_PV | 0 | 0 | 0.000 | 1e-005 |
| FV | 0 | -2.8376e-010 | 0.000 | 1e-005 |
| MX | -4.95e+005 | -4.95e+005 | 1.000 | 1e-005 |
| PV | 24326 | 24326 | 1.000 | 1 |
| VCR | 1.8966e+005 | 1.8966e+005 | 1.000 | 1 |
| MC | 7.9857e+005 | 7.9857e+005 | 1.000 | 1 |
| MDF | 220.6 | 220.6 | 1.000 | 1 |
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