CFVR7061 - AASHTO10: Bending Checking of a I Section

Bending checking according to AASHTO10 I-section.

A steel beam is subjected a uniform load of 0.01 k/ft 2 punctual loads of 2.8 Kips at 1/3L and 273L
The beam has a length of 40 feet.
Section material properties: A572Gr50 , Fy = 50 ksi , Fu = 65 ksi
Geometric properties: W6x9 . Member property : LB= 0 Continuosly braced Refernce : AISC, Design Examples, Version 13.0 Example F.3b
The aim of the example is to obtain the bending criterion according to AASHTO 2010.

Element types used in the model: BEAM3

Needed CivilFEM Modules:
Geotechnical Module
Bridges and Civil Non Linearities Module
Advanced Prestressed Concrete Module

The example can be launched on an educational license.

KEYWORDS

Beam

Cross Section

Steel

Code Checking/Design

AASHTO10

Model Statistics
Number of elements	3
Number of nodes	4
Number of civil materials	1
Number of cross sections	1
Number of shell vertices	0

Log file: CFVR7061.DAT

! DESCRIPTION 

FINISH
~CFCLEAR,,1
NomFile='CFVR7061'
/TITLE, %NomFile%, AASHTO10: Bending Checking I-Section

!-------------------------------------------------------------------------------
! Model definition
!-------------------------------------------------------------------------------
! CivilFEM Setup: Code & Units
~UNITS,,LENG,FT
~UNITS,,TIME,S
~UNITS,,FORC,KIPS
~CODESEL,AASHTO10,EC2-08,,,EC8-04
   

/PREP7

! Materials
~CFMP,1,LIB,STEEL,ASTM,A572Gr50 


! Element Types
ET,1,BEAM3  ! Type 1: 2D Beam

! Cross Section
~SSECLIB,1,1,51,265   !W 6x9

! Member Properties
~MEMBPRO,1,AASHTO10,ALL,40.0,1.000,1.000,1.000,1.000,0.000,1.000,1.000,0, 


! Beam & Shell Property
~BMSHPRO,1,BEAM,1,1,,,3,1,0,,Beam 1

! Nodes
N,1,0.,0.
N,2,40/3,0.
N,3,80/3,0.
N,4,40.,0.

! Elements
E,1,2
E,2,3
E,3,4

/SOLU
! Loads
D,1, , , , , ,UX,UY, , , ,   
D,4, , , , , , ,UY, , , ,
SFBEAM,1,1,PRES,0.01, , , , , ,0
SFBEAM,2,1,PRES,0.01, , , , , ,0
SFBEAM,3,1,PRES,0.01, , , , , ,0
F,2,FY,-2.8
F,3,FY,-2.8

SOLVE

/POST1
~CFSET,,1,1 
~CHKSTL,BENDING
!-------------------------------------------------------------------------------------
! DATA CHECK
!-------------------------------------------------------------------------------------
! Data comparison number
NComp = 2
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) = 'MP'
LABEL(2,1) = 'CRT_TOT'



! Correct values
VALUE(1,1) = 25.96
VALUE(2,1) = 1.5


! Comparison
~PLLSSTL,MP
*GET,VALUE(1,2),ELEM,1,ETAB,CFETAB_I
~PLLSSTL,CRT_TOT
*GET,VALUE(2,2),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) 


!--------------------------------------------------------------------------------------
! Results comparison
!--------------------------------------------------------------------------------------
  COMPARA.MAC

Results

Label	Target	CivilFEM	Ratio	Tolerance
MP	25.96	25.958	1.000	0.2596
CRT_TOT	1.5	1.5071	0.995	0.015

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CFVR7061 - AASHTO10: Bending Checking of a I Section

Bending checking according to AASHTO10 I-section.

Results