CFVR0981 - Bending + Axial force design according to ACI 349 06
Design this equivalent reinforced concrete beam, subjected to Bending + Axial force according to ACI 349 06, simulating a 1x1 m2 shell.
A fixed concrete shell is subjected to a list of axial forces and beding moments, in Z axis, from the CFVR0981.FM file
The aim of the example is to obtain the reinforcement factor according to ACI 349 06. The reinforcement will not be in spiral, but "Other cases"
Element types used in the model: BEAM3 Needed CivilFEM Modules: |
|
| Model Statistics | |
| Number of elements | 17 |
| Number of nodes | 18 |
| Number of civil materials | 2 |
| Number of cross sections | 1 |
| Number of shell vertices | 0 |
Log file: CFVR0981.DAT
! D_ESCRIPTION: CFVR0981.FM file is needed to run this test case. FINISH ~CFCLEAR,,1 NomFile='CFVR0981' /TITLE,%NomFile%, BENDING + AXIAL FORCE CHECKING ACCORDING TO ACI 349 06 ! -------------------------------------------------------------------- ! Initial data ! -------------------------------------------------------------------- ! CivilFEM SETUP ~UNITS,SI !m,s,Newton ~CODESEL,EC3-05,ACI34906,EC2-08,,EC8-04 h=1.0 !Heigth b=1.0 !Width NELEM=17 !Number of elements the beam will be divided into ! Preprocessor /PREP7 ! Material Definition ~CFMP,1,LIB,CONCRETE,ACI,fc_6000 ~CFMP,2,LIB,REINF,ACI,fy_60000 ! Element Type Definition ET,1,Beam3 ! Element Type 1: 2D Beam ! Cross-section definition ~CSECDMS,1,REC,1,h,b ! Reinforcement definition ~RNFDEF,1,1,2,4,0,1.000E-06,10.000E-03, , , , , , ! Bot Reinf.: Total A.: 100 cm^2 ! Beam & Shell property ~BMSHPRO,1,BEAM,1,1,,,3,1,,,Beam property ! Model Construction N,1,,, ! Nodes input N,NELEM+1,1 FILL,1,NELEM+1 E,1,2 ! Elements input EGEN,NELEM,1,1,1 D,1,ALL ! Boundary conditions /SOLU SOLVE ! Calculation /POST1 ! Postprocessor ~CFSET,,1,1 ! Read first load step ~FMREAD,CFVR0981,FM !File from which diagram points will be taken ! /PREP7 ! ~RNFMDF,1,1,AST,100.000E-06 !Design reinforcement FINISH /POST1 ~DIMCON,2DB, ,0,0,200,0,0,0 !Other cases !-------------------------------------------------------------------------------------- ! DATA CHECK !-------------------------------------------------------------------------------------- ! Data comparison number NComp = NELEM 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 *DO,JJ,1,NELEM LABEL(JJ,1) = 'REINFACT_I' *ENDDO ! Correct values *DO,JJ,1,NELEM VALUE(JJ,1)=1.0 *ENDDO ! Comparison ~CFSET,1 ! ALT 1 *DO,JJ,1,NELEM ~CFGET,VALUE(JJ,2), ELEMENT, JJ ,RESULT , REINFACT, I *ENDDO ! Warning and error tolerances *DO,JJ,1,NELEM TOLER(JJ,1)= 0.04*VALUE(JJ,1) $ TOLER(JJ,2)= 0.04*VALUE(JJ,1) *ENDDO !-------------------------------------------------------------------------------------- ! Results comparison !-------------------------------------------------------------------------------------- COMPARA.MAC |
Results
| Label | Target | CivilFEM | Ratio | Tolerance |
| REINFACT | 1 | 1 | 1.000 | 0.04 |
| REINFACT | 1 | 0.99609 | 1.004 | 0.04 |
| REINFACT | 1 | 1.0076 | 0.992 | 0.04 |
| REINFACT | 1 | 1.0065 | 0.994 | 0.04 |
| REINFACT | 1 | 1 | 1.000 | 0.04 |
| REINFACT | 1 | 0.97412 | 1.026 | 0.04 |
| REINFACT | 1 | 1.0182 | 0.982 | 0.04 |
| REINFACT | 1 | 1 | 1.000 | 0.04 |
| REINFACT | 1 | 1 | 1.000 | 0.04 |
| REINFACT | 1 | 1 | 1.000 | 0.04 |
| REINFACT | 1 | 1 | 1.000 | 0.04 |
| REINFACT | 1 | 1 | 1.000 | 0.04 |
| REINFACT | 1 | 1 | 1.000 | 0.04 |
| REINFACT | 1 | 1.0106 | 0.989 | 0.04 |
| REINFACT | 1 | 1 | 1.000 | 0.04 |
| REINFACT | 1 | 1.0053 | 0.995 | 0.04 |
| REINFACT | 1 | 1.0137 | 0.986 | 0.04 |
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