CFVR8680 - AISC15: Chapter G Design of Members for Shear
Shear check according to AISC15 - PLATE GIRDER FLEXURAL MEMBER
A built-up plate girder is subjected to a shear force.
The beam is ASTM A572 Grade 50 material.
The aim of the example is to obtain the Available Shear Strength according to AISC15 (LRFD/ASD). REFERENCE: Volume 1: Design Examples Version 15.1 EXAMPLE F.15 PLATE GIRDER FLEXURAL MEMBER
Element types used in the model: BEAM188 Needed CivilFEM Modules: |
|
| Model Statistics | |
| Number of elements | 1 |
| Number of nodes | 2 |
| Number of civil materials | 1 |
| Number of cross sections | 1 |
| Number of shell vertices | 0 |
Log file: CFVR8680.DAT
FINISH ~CFCLEAR,,1 NomFile='CFVR8680' /TITLE, %NomFile%, AISC15: Shear Check ! Model definition !-------------------------------------------------------------------------------------- ! CivilFEM Setup: Code & Units ~UNITS,,LENG,IN ~UNITS,,FORC,KIPS! in, sec, Kips ~CODESEL,AISC15 ! Parameters F = 66 ! Force kips Fyy = 50 ! ksi Fuu = 65 ! ksi /PREP7 ! Preprocessor ! -------------------------------------------------- ! Materials ~CFMP,1,LIB,STEEL,ASTM,A36 ! ASTM A572 Grade 50 material ~CFMP,1,NAME,,,ASTM A572 Grade 50 ~CFMP,1,USER ~CFMP,1,AISC15 ,Fy,,Fyy ,1,0,0 ~CFMP,1,AISC15 ,Fu,,Fuu ,1,0,0 ! Element Types ET,1,188 ! Type 1: 3D Beam ! Cross Section ~SSECDMS,1,I,1,66 ,0.5,14 ,2 ,,62 ! Beam & Shell Property ~BMSHPRO,1,BEAM,1,1,,,188,1,0,,Beam 1 ! Nodes N,1 N,2,,2 ! Elements SECNUM,1 REAL,1 E,1,2 /SOLU ! Solution ! -------------------------------------------------- ! Constrains D,1,ALL ! Apply Load F,2,FX,F ! Solve SOLVE /POST1 ! Postprocessor ! -------------------------------------------------- ! Read results ~CFSET,,1 ! First load case ! Checking ~CHKSTL,SHEAR,Z,LRFD ~CHKSTL,SHEAR,Z,ASD !-------------------------------------------------------------------------------------- ! DATA CHECK !-------------------------------------------------------------------------------------- ! Data comparison number NComp = 4 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) = 'AW' LABEL(2,1) = 'VN' LABEL(3,1) = 'CRT_LRFD' LABEL(4,1) = 'CRT_ASD' ! Correct values VALUE(1,1)=33 ! Web area VALUE(2,1)=489 ! Nominal shear strength VALUE(3,1)=0.1499 ! Total criterion LRFD VALUE(4,1)=0.225 ! Total criterion ASD ! Comparison ~CFSET,1 ! LRFD ~CFGET,VALUE(1,2),ELEMENT,1,RESULT,AW,I ~CFGET,VALUE(2,2),ELEMENT,1,RESULT,VN,I ~CFGET,VALUE(3,2),ELEMENT,1,RESULT,CRT_TOT,I ~CFSET,2 ! ASD ~CFGET,VALUE(4,2),ELEMENT,1,RESULT,CRT_TOT,I ! Warning and error tolerances *DO,JJ,1,4 TOLER(JJ,1)= 0.03*VALUE(JJ,1) $ TOLER(JJ,2)= 0.03*VALUE(JJ,1) *ENDDO !-------------------------------------------------------------------------------------- ! Results comparison !-------------------------------------------------------------------------------------- COMPARA.MAC |
Results
| Label | Target | CivilFEM | Ratio | Tolerance |
| AW | 33 | 33 | 1.000 | 0.99 |
| VN | 489 | 488.75 | 1.000 | 14.67 |
| CRT_LRFD | 0.1499 | 0.15004 | 0.999 | 0.004497 |
| CRT_ASD | 0.225 | 0.22551 | 0.998 | 0.00675 |
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