CFVR0959 - In-Plane Shear Calculation – ACI 349 06 Slab
Check of reinforcement for in-plane shear and membrane forces
To investigate the design of reinforcement for in-plane shear and membrane forces for ACI 349 06, a simple 5 ft x 25 ft x 1 ft slab model was used.
The 5-element model consists of Shell43 elements. Vertical and lateral loads were applied at nodes 3 and 8.
The wall is restrained at nodes 1 and 2 at the base of the model. Node 1 is restrained in the x, y, and z directions for translation as well as rotation in the x and z directions.
Node 2 is restrained in the y and z directions for translation as well as rotation in the x and z directions.
Element types used in the model: SHELL43 Needed CivilFEM Modules: |
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| Model Statistics | |
| Number of elements | 5 |
| Number of nodes | 12 |
| Number of civil materials | 2 |
| Number of cross sections | 0 |
| Number of shell vertices | 1 |
Log file: CFVR0959.DAT
FINISH ~CFCLEAR,,1 NomFile='CFVR0959' /TITLE, %NomFile%,In-Plane Shear Calculation, ACI 349 06 Wall ~CODESEL,,ACI34906 ~UNITS,,LENG,IN ~UNITS,,FORC,LBF ~UNITS,,PRES,,0 ,uuP ! ~CFCONFG,RESULT,CFSHF,1 !------------------------------------------------------------------------------- ! Model definition !------------------------------------------------------------------------------- THK = 1*12.0 ! shell thickness COVER = 0.8 ! cover WDTH = 5*12.0 ! wall width L = 25*12.0 ! wall heigth /PREP7 ET,1,SHELL43 ~CFMP,1,LIB,CONCRETE,ACI,fc_6000 ~CFMP,1,USER ~CFMP,1,ACI_C ,fc_t ,,6000 ,7,0,0 ~CFMP,2,LIB,REINF,ACI,fy_60000 ~SHLRNF,1,THK,1,2,COVER ! Bending Reinforcement ! ~SHLSHR, IVTX, MATOP,ASSOP, PHIOP, NXOP, NYOP, SXOP, SYOP, ASSOPX, ASSOPY ~SHLSHR, 1, 2, , , , , , , ! Shear Reinforcement ! ~SHLIPSH,IVTX, MATIP, ASSIPX, ASSIPY ~SHLIPSH, 1, 2, 0.0987,0.08334 ! In-plane Reinforcement ~BMSHPRO,1,SHELL,1,1,1,1,43,,,,Shell 1 K,1 K,2, ,,L K,3,WDTH,,L K,4,WDTH,, A,1,2,3,4 TYPE,1 REAL,1 MAT,1 AESIZE,ALL,5*12.0, MSHAPE,0,2D MSHKEY,1 AMESH,ALL LOCAL,11,0,-10,0,0,-180,-90, ,1,1, EMODIF,ALL,ESYS,11, ! X Element horizontal, Y Element vertical CSYS,0 /VIEW,1,,-1 !------------------------------------------------------------------------------- ! Model resolution !------------------------------------------------------------------------------- FINISH /SOLU F,2,FX,140000 F,2,FY,80000 F,2,FZ,-40000 F,7,FX,140000 F,7,FY,80000 F,7,FZ,-40000 ! Node 1 is restrained in x,y,z directions for translation ! as well as rotation in the x and z directions D,1, , , , , ,UX,UY,UZ,ROTX,ROTZ, ! Node 2 is restrained in y,z directions for translation ! as well as rotation in the x and z directions D,8, , , , , ,UY,UZ,ROTX,ROTZ, , ALLSEL SOLVE FINISH /POST1 ~CFSET,,1 ! Element # 1 is selected for design ESEL,S,,,1 !~CHKCON,SHELL,IPSHEAR,, VAL1, VAL2, VAL3, ~DIMCON, SHELL,IPSHEAR,, , ,1, ,1, ! VAL1=1-> Walls non-seismic loads, VAL3=1->Fi=0.75 ~DIMCON,SHELL,IPSHEAR, , , ,2, ,1, ! VAL1=2-> Walls seismic loads, VAL3=1->Fi=0.75 !-------------------------------------------------------------------------------------- ! DATA CHECK !-------------------------------------------------------------------------------------- ! Data comparison number NComp = 20 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( 1,1) = 'VC_X' LABEL( 2,1) = 'VC_Y' LABEL( 3,1) = 'VS_X' LABEL( 4,1) = 'VS_Y' LABEL( 5,1) = 'NSCRT_2X' LABEL( 6,1) = 'NSCRT_2Y' LABEL( 7,1) = 'NSCRT_3X' LABEL( 8,1) = 'NSCRT_3Y' LABEL( 9,1) = 'NAIPSS_X' LABEL( 10,1) = 'NAIPSS_Y' LABEL( 11,1) = 'VC_X' LABEL( 12,1) = 'VC_Y' LABEL( 13,1) = 'VS_X' LABEL( 14,1) = 'VS_Y' LABEL( 15,1) = 'SCRT_2X' LABEL( 16,1) = 'SCRT_2Y' LABEL( 17,1) = 'SCRT_3X' LABEL( 18,1) = 'SCRT_3Y' LABEL( 19,1) = 'SAIPSS_X' LABEL( 20,1) = 'SAIPSS_Y' ! Correct values ~CFGET,Txy_Shell, ELEMENT, 1, FORCE,TXY, I ! In-plane shear ! Walls non-seismic design VALUE( 1,1) = 1487.23 VALUE( 2,1) = 753.9 VALUE( 3,1) = 4734.9834 VALUE( 4,1) = 5468.3134 VALUE( 5,1) = ABS(Txy_Shell/5577.1) VALUE( 6,1) = ABS(Txy_Shell/5577.1) VALUE( 7,1) = 0.0025/(0.09865/12) VALUE( 8,1) = 0.0025/(0.113923/12) VALUE( 9,1) = 0.09865 VALUE( 10,1) = 0.113923 ! Walls seismic design VALUE(11,1) = 1487.23 VALUE(12,1) = 753.9 VALUE(13,1) = 4734.9834 VALUE(14,1) = 5468.3134 VALUE(15,1) = ABS(Txy_Shell/5577.1) VALUE(16,1) = ABS(Txy_Shell/5577.1) VALUE(17,1) = 0.0025/(0.09865/12) VALUE(18,1) = 0.0025/(0.113923/12) VALUE(19,1) = 0.09865 VALUE(20,1) = 0.113923 ! CivilFEM values ~CFSET,1 ! Walls non-seismic design ~CFGET,VALUE( 1,2), ELEMENT, 1 ,RESULT , VC_X, I ~CFGET,VALUE( 2,2), ELEMENT, 1 ,RESULT , VC_Y, I ~CFGET,VALUE( 3,2), ELEMENT, 1 ,RESULT , VS_X, I ~CFGET,VALUE( 4,2), ELEMENT, 1 ,RESULT , VS_Y, I ~CFGET,VALUE( 5,2), ELEMENT, 1 ,RESULT , CRT_2_X, I ~CFGET,VALUE( 6,2), ELEMENT, 1 ,RESULT , CRT_2_Y, I ~CFGET,VALUE( 7,2), ELEMENT, 1 ,RESULT , CRT_3_X, I ~CFGET,VALUE( 8,2), ELEMENT, 1 ,RESULT , CRT_3_Y, I ~CFGET,VALUE( 9,2), ELEMENT, 1 ,RESULT , AIPSS_X, I ~CFGET,VALUE( 10,2), ELEMENT, 1 ,RESULT , AIPSS_Y, I ~CFSET,2 ! Walls seismic design ~CFGET,VALUE( 11,2), ELEMENT, 1 ,RESULT , VC_X, I ~CFGET,VALUE( 12,2), ELEMENT, 1 ,RESULT , VC_Y, I ~CFGET,VALUE( 13,2), ELEMENT, 1 ,RESULT , VS_X, I ~CFGET,VALUE( 14,2), ELEMENT, 1 ,RESULT , VS_Y, I ~CFGET,VALUE( 15,2), ELEMENT, 1 ,RESULT , CRT_2_X, I ~CFGET,VALUE( 16,2), ELEMENT, 1 ,RESULT , CRT_2_Y, I ~CFGET,VALUE( 17,2), ELEMENT, 1 ,RESULT , CRT_3_X, I ~CFGET,VALUE( 18,2), ELEMENT, 1 ,RESULT , CRT_3_Y, I ~CFGET,VALUE( 19,2), ELEMENT, 1 ,RESULT , AIPSS_X, I ~CFGET,VALUE( 20,2), ELEMENT, 1 ,RESULT , AIPSS_Y, I ! Warning and error tolerances TOLER( 1,1)= 1E-2 $ TOLER( 1,2)= 1E-2 TOLER( 2,1)= 1E-2 $ TOLER( 2,2)= 1E-2 TOLER( 3,1)= 1E-1 $ TOLER( 3,2)= 1E-1 TOLER( 4,1)= 1E-1 $ TOLER( 4,2)= 1E-1 TOLER( 5,1)= 1E-2 $ TOLER( 5,2)= 1E-2 TOLER( 6,1)= 1E-2 $ TOLER( 6,2)= 1E-2 TOLER( 7,1)= 1E-2 $ TOLER( 7,2)= 1E-2 TOLER( 8,1)= 1E-2 $ TOLER( 8,2)= 1E-2 TOLER( 9,1)= 1E-2 $ TOLER( 9,2)= 1E-2 TOLER(10,1)= 1E-2 $ TOLER(10,2)= 1E-2 TOLER(11,1)= 1E-2 $ TOLER(11,2)= 1E-2 TOLER(12,1)= 1E-2 $ TOLER(12,2)= 1E-2 TOLER(13,1)= 1E-1 $ TOLER(13,2)= 1E-1 TOLER(14,1)= 1E-1 $ TOLER(14,2)= 1E-1 TOLER(15,1)= 1E-2 $ TOLER(15,2)= 1E-2 TOLER(16,1)= 1E-2 $ TOLER(16,2)= 1E-2 TOLER(17,1)= 1E-2 $ TOLER(17,2)= 1E-2 TOLER(18,1)= 1E-2 $ TOLER(18,2)= 1E-2 TOLER(19,1)= 1E-2 $ TOLER(19,2)= 1E-2 TOLER(20,1)= 1E-2 $ TOLER(20,2)= 1E-2 !------------------------------------------------------------------------------- ! Results comparison !------------------------------------------------------------------------------- COMPARA.MAC |
Results
| Label | Target | CivilFEM | Ratio | Tolerance |
| VC_X | 1487.2 | 1487.2 | 1.000 | 0.01 |
| VC_Y | 753.9 | 753.89 | 1.000 | 0.01 |
| VS_X | 4735 | 4735 | 1.000 | 0.1 |
| VS_Y | 5468.3 | 5468.3 | 1.000 | 0.1 |
| NSCRT_2X | 0.83676 | 0.83676 | 1.000 | 0.01 |
| NSCRT_2Y | 0.83676 | 0.83676 | 1.000 | 0.01 |
| NSCRT_3X | 0.30411 | 0.30412 | 1.000 | 0.01 |
| NSCRT_3Y | 0.26334 | 0.26333 | 1.000 | 0.01 |
| NAIPSS_X | 0.09865 | 0.098646 | 1.000 | 0.01 |
| NAIPSS_Y | 0.11392 | 0.11392 | 1.000 | 0.01 |
| VC_X | 1487.2 | 1487.2 | 1.000 | 0.01 |
| VC_Y | 753.9 | 753.89 | 1.000 | 0.01 |
| VS_X | 4735 | 4735 | 1.000 | 0.1 |
| VS_Y | 5468.3 | 5468.3 | 1.000 | 0.1 |
| SCRT_2X | 0.83676 | 0.83676 | 1.000 | 0.01 |
| SCRT_2Y | 0.83676 | 0.83676 | 1.000 | 0.01 |
| SCRT_3X | 0.30411 | 0.30412 | 1.000 | 0.01 |
| SCRT_3Y | 0.26334 | 0.26333 | 1.000 | 0.01 |
| SAIPSS_X | 0.09865 | 0.098646 | 1.000 | 0.01 |
| SAIPSS_Y | 0.11392 | 0.11392 | 1.000 | 0.01 |
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