CFVR2610 - BS 5950 (2001) Bending and shear
Bending and shear checking according to British Standard 5950-01.
A fixed steel beam subjected to a surface load of 4.2 KN/m.
The beam has a length of 10 m.
The cross section is a pipe which has 0.4498 m for radius and 7.6 mm thickness.
The beam is made of Gr43 steel.
The aim of the example is to obtain the bending and shear criterion according to BS 5950-01.
Element types used in the model: BEAM4 Needed CivilFEM Modules: |
|
| Model Statistics | |
| Number of elements | 9 |
| Number of nodes | 10 |
| Number of civil materials | 1 |
| Number of cross sections | 1 |
| Number of shell vertices | 0 |
Log file: CFVR2610.DAT
FINISH ~CFCLEAR,,1 NomFile='CFVR2610' /TITLE, %NomFile%, BS 5950 (1985) Bending and shear !-------------------------------------------------------------------------------------- ! Model definition and solve !-------------------------------------------------------------------------------------- ! CivilFEM Setup: Code & Units ~UNITS,,LENG,M ~UNITS,,TIME,S ~UNITS,,FORC,KN ~CODESEL,BS595001,BS8110,,,EC8-94 /PREP7 ! Preprocessor ! -------------------------------------------------- ! Materials ! Mat 1: Fe430 ~CFMP,1,LIB,STEEL,BS5950,Gr43 ! Element Types ET,1,BEAM4 ! Type 1: 3D Beam ! Cross Section ~SSECLIB,1,1,501,2 ! Member properties (Not needed) ! Beam & Shell properties ~BMSHPRO,1,BEAM,1,1,,,4,1,0,,Beam 1 ! Keypoints K,1,,,, K,2,3,,, K,3,6,,, K,4,9,,, ! Lines LSTR, 1, 2 LSTR, 2, 3 LSTR, 3, 4 ! Meshing TYPE,1 MAT,1 REAL,1 ESIZE,1,0, LMESH,all ! First span /SOLU ! Solution ! -------------------------------------------------- ! Displacements DK,1,UX,,,,UY,UZ,ROTX DK,4,UX,,,,UY,UZ,ROTX FK,1,MZ,282 ! Apply Load FK,4,MZ,-231 FK,2,FY,-152 FK,3,FY,-76 SFBEAM,ALL,2,PRES,4.2, ! Solve SOLVE /POST1 ! Postprocessor ! -------------------------------------------------- ! Read results ~CFSET,,1,1 ! First load case ! BS 5950 Check for Bending ~CHKSTL,BENDING, ,-Z !-------------------------------------------------------------------------------------- ! DATA CHECK !-------------------------------------------------------------------------------------- ! Data comparison number NComp = 5 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) = 'MC' LABEL(2,1) = 'PV' LABEL(3,1) = 'CRT_V' LABEL(4,1) = 'CRT_M' LABEL(5,1) = 'CRT_TOT' ! Correct values VALUE(1,1)=301.675 VALUE(2,1)=564.049 VALUE(3,1)=253.228E-3 VALUE(4,1)=39.9989E-3 VALUE(5,1)=253.228E-3 ! Obtained values ! BS 5950 Check for Bending+Shear ~CFSET,1 ! Load first alternative ~PLLSSTL,MC *GET,VALUE(1,2),ELEM,3,ETAB,CFETAB_I ~PLLSSTL,PV *GET,VALUE(2,2),ELEM,3,ETAB,CFETAB_I ~PLLSSTL,CRT_V *GET,VALUE(3,2),ELEM,3,ETAB,CFETAB_I ~PLLSSTL,CRT_M *GET,VALUE(4,2),ELEM,3,ETAB,CFETAB_I ~PLLSSTL,CRT_TOT *GET,VALUE(5,2),ELEM,3,ETAB,CFETAB_I ! Warning and error tolerances TOLER( 1, 1)= 10 $ TOLER( 1, 2)= 10 TOLER( 2, 1)= 10 $ TOLER( 2, 2)= 10 TOLER( 3, 1)= 1E-2 $ TOLER( 3, 2)= 1E-1 TOLER( 4, 1)= 1E-3 $ TOLER( 4, 2)= 1E-2 TOLER( 5, 1)= 1E-2 $ TOLER( 5, 2)= 1E-1 !-------------------------------------------------------------------------------------- ! Results comparison !-------------------------------------------------------------------------------------- COMPARA.MAC |
Results
| Label | Target | CivilFEM | Ratio | Tolerance |
| MC | 301.68 | 301.68 | 1.000 | 10 |
| PV | 564.05 | 564.05 | 1.000 | 10 |
| CRT_V | 0.25323 | 0.25323 | 1.000 | 0.1 |
| CRT_M | 0.039999 | 0.039999 | 1.000 | 0.01 |
| CRT_TOT | 0.25323 | 0.25323 | 1.000 | 0.1 |
Contains proprietary and confidential information of Ingeciber, S.A.