CFVR7058 - AASHTO10: Flexure Checking of T Section
Flexure checking according to AASHTO10 of a T section
A steel beam is subjected a uniform load of 0.04 k/in.
The beam has a length of 72 in.
Section material properties: A572 Gr50 , Fy = 50 ksf , Fu = 65 ksi
Geometric properties: WT 5x6 The aim of the example is to obtain the flexure criterion according to aashto10.
Reference: AISC, Design Examples, Version 13.0 Example F.10, WT Shape Flexural Member
Element types used in the model: BEAM3 Needed CivilFEM Modules: |
|
| Model Statistics | |
| Number of elements | 2 |
| Number of nodes | 3 |
| Number of civil materials | 1 |
| Number of cross sections | 1 |
| Number of shell vertices | 0 |
Log file: CFVR7058.DAT
! DESCRIPTION FINISH ~CFCLEAR,,1 NomFile='CFVR7058' /TITLE, %NomFile%, AASHTO10: WT Shape Flexural Member !------------------------------------------------------------------------------- ! Model definition !------------------------------------------------------------------------------- ! CivilFEM Setup: Code & Units ~UNITS,,LENG,in ~UNITS,,TIME,S ~UNITS,,FORC,KIPS ~UNITS,,PRES,,0 ,ksi ~CODESEL,AASHTO10 /PREP7 ! Materials ~CFMP,1,LIB,STEEL,ASTM,A572Gr50 ! Element Types ET,1,BEAM3 ! Type 1: 2D Beam ! Cross Section ~SSECLIB,1,1,58,246 !WT 5x 6 ~MEMBPRO,1,AASHTO10,ALL,180.0,1.000,1.000,1.000,1.000,180.0,1.000,1.000,0.000 ! Beam & Shell Property ~BMSHPRO,1,BEAM,1,1,,,3,1,0,,Beam 1 ! Nodes N,1,0.,0. N,2,90.,0. N,3,180.,0. ! Elements E,1,2 E,2,3 /SOLU ! Loads D,1, , , , , ,UX,UY, , , , D,3, , , , , , ,UY, , , , SFBEAM,1,1,PRES,0.04, , , , , ,0 SFBEAM,2,1,PRES,0.04, , , , , ,0 SOLVE /POST1 ~CFSET,,1,1 ~CHKSTL,BENDING !------------------------------------------------------------------------------------- ! DATA CHECK !------------------------------------------------------------------------------------- ! Data comparison number NComp = 6 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) = 'CHK_YLD' LABEL(2,1) = 'MP' LABEL(3,1) = 'CRT_YLD' LABEL(4,1) = 'CRT_LTB' LABEL(5,1) = 'CRT_FLB' LABEL(6,1) = 'CRT_TOT' ! Correct values VALUE(1,1) = 1 VALUE(2,1) = 125 VALUE(3,1) = 1.66 VALUE(4,1) = 2.03 VALUE(5,1) = 1.66 VALUE(6,1) = 2.03 ! Comparison ~PLLSSTL,CHK_YLD *GET,VALUE(1,2),ELEM,1,ETAB,CFETAB_J ~PLLSSTL,MP *GET,VALUE(2,2),ELEM,1,ETAB,CFETAB_J ~PLLSSTL,CRT_YLD *GET,VALUE(3,2),ELEM,1,ETAB,CFETAB_J ~PLLSSTL,CRT_LTB *GET,VALUE(4,2),ELEM,1,ETAB,CFETAB_J ~PLLSSTL,CRT_FLB *GET,VALUE(5,2),ELEM,1,ETAB,CFETAB_J ~PLLSSTL,CRT_TOT *GET,VALUE(6,2),ELEM,1,ETAB,CFETAB_J ! Warning and error tolerances TOLER(1,1)= 0.01*VALUE(1,1) $ TOLER(1,2)= 0.01*VALUE(1,1) TOLER(2,1)= 0.01*VALUE(2,1) $ TOLER(2,2)= 0.01*VALUE(2,1) TOLER(3,1)= 0.01*VALUE(3,1) $ TOLER(3,2)= 0.01*VALUE(3,1) TOLER(4,1)= 0.01*VALUE(4,1) $ TOLER(4,2)= 0.01*VALUE(4,1) TOLER(5,1)= 0.01*VALUE(5,1) $ TOLER(5,2)= 0.01*VALUE(5,1) TOLER(6,1)= 0.01*VALUE(6,1) $ TOLER(6,2)= 0.01*VALUE(6,1) !-------------------------------------------------------------------------------------- ! Results comparison !-------------------------------------------------------------------------------------- COMPARA.MAC |
Results
| Label | Target | CivilFEM | Ratio | Tolerance |
| CHK_YLD | 1 | 1 | 1.000 | 0.01 |
| MP | 125 | 125 | 1.000 | 1.25 |
| CRT_YLD | 1.66 | 1.6598 | 1.000 | 0.0166 |
| CRT_LTB | 2.03 | 2.0355 | 0.997 | 0.0203 |
| CRT_FLB | 1.66 | 1.6598 | 1.000 | 0.0166 |
| CRT_TOT | 2.03 | 2.0355 | 0.997 | 0.0203 |
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