CFVR4101 - Linear design-diagram for concrete of ACI 359-04 code

Comprobation of the linear design-diagram for concrete

This example performs the following comprobations:
1. That the type of design diagram enabled by default for ACI 359 code is the parabolic. 2. That are defined correctly the points of the linear design diagram according to the ACI 359-04 code. Checking will only be done at certain age (variable AGE) of an arbitrary type of concrete.

Element types used in the model: NONE

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

Materials

ACI 359

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

Log file: CFVR4101.dat

FINISH
~CFCLEAR,,1
NomFile ='CFVR4101'
/TITLE,%NomFile%,Linear design-diagram for concrete

~CODESEL,,ACI359,ACI359
~UNITS,BFT

/PREP7

! ----------------------------------------------------------------------
! Parameters
! ----------------------------------------------------------------------

AGE = 10     ! indicator corresponding to 75 days of concrete age
TOL = 1.E-12 ! relative error used to define tolerances

! ----------------------------------------------------------------------
! Material definition
! ----------------------------------------------------------------------

~CFMP,1,LIB,CONCRETE,ACI,fc_4500

!-----------------------------------------------------------------------
! Data check
!-----------------------------------------------------------------------

NCOMP    = 5
NCOMP_CH = 0

! Matrix 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) = 'TSDSSD'
LABEL(2) = 'EPS1'
LABEL(3) = 'EPS2'
LABEL(4) = 'SIG1'
LABEL(5) = 'SIG2'

! Correct values
!-----------------------------------------------------------------------
~CFGET,EMOD,MATERIAL,1,ACI_C,EC,,AGE

VALUE(1,1) = 4
VALUE(2,1) = -1.E-2
VALUE(3,1) =  0.E-2
VALUE(4,1) = EMOD*VALUE(2,1)
VALUE(5,1) = EMOD*VALUE(3,1)

! Warning and error tolerencaes
!-----------------------------------------------------------------------

TOLER(1,1) = 0                   $ TOLER(1,2) = 0
TOLER(2,1) = TOL*ABS(VALUE(2,1)) $ TOLER(2,2) = TOLER(2,1) 
TOLER(3,1) = TOL*ABS(VALUE(3,1)) $ TOLER(3,2) = TOLER(3,1)
TOLER(4,1) = TOL*ABS(VALUE(4,1)) $ TOLER(4,2) = TOLER(4,1)
TOLER(5,1) = TOL*ABS(VALUE(5,1)) $ TOLER(5,2) = TOLER(5,1)

! Obtained values
!-----------------------------------------------------------------------
~CFGET,VALUE(1,2),MATERIAL,1,ACI_C,TSDSSD
~CFMP,1,ACI_C,TSDSSD,,3
~CFGET,VALUE(2,2),MATERIAL,1,ACI_C,SDEPS,,1,AGE
~CFGET,VALUE(3,2),MATERIAL,1,ACI_C,SDEPS,,2,AGE
~CFGET,VALUE(4,2),MATERIAL,1,ACI_C,SDSGM,,1,AGE
~CFGET,VALUE(5,2),MATERIAL,1,ACI_C,SDSGM,,2,AGE

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

Results

Label	Target	CivilFEM	Ratio	Tolerance
TSDSSD	4	4	1.000	0
EPS1	-0.01	-0.01	1.000	1e-014
EPS2	0	0	0.000	0
SIG1	-6.1616e+006	-6.1616e+006	1.000	6.162e-006
SIG2	0	0	0.000	0

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CFVR4101 - Linear design-diagram for concrete of ACI 359-04 code

Comprobation of the linear design-diagram for concrete

Results