Elastic Beam Column Element: Difference between revisions
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| style="background:lime; color:black; width:800px" | ''' element elasticBeamColumn $eleTag $iNode $jNode $A $E $Iz $transfTag <-mass $massDens> <-cMass>''' | | style="background:lime; color:black; width:800px" | ''' element elasticBeamColumn $eleTag $iNode $jNode $A $E $Iz $transfTag <-mass $massDens> <-cMass>''' | ||
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| style="background:lime; color:black; width:800px" | ''' element elasticBeamColumn $eleTag $iNode $jNode $A $E $G $J $Iy $Iz $transfTag <-mass $massDens> <-cMass>''' | | style="background:lime; color:black; width:800px" | ''' element elasticBeamColumn $eleTag $iNode $jNode $A $E $G $J $Iy $Iz $transfTag <-mass $massDens> <-cMass>''' | ||
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For two- and three-dimensional problems: | |||
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| '''$Iy''' || second moment of area about the local y-axis | | '''$Iy''' || second moment of area about the local y-axis | ||
|- | |- | ||
| '''$secTag''' || identifier for previously-defined section object | | '''$secTag''' || identifier for previously-defined section object (assumes E = G = 1.0 and determinate A, Iz, Iy, and J from section stiffness) | ||
|- | |- | ||
| '''$transfTag''' || identifier for previously-defined coordinate-transformation (CrdTransf) object | | '''$transfTag''' || identifier for previously-defined coordinate-transformation (CrdTransf) object | ||
Revision as of 22:56, 9 February 2023
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This command is used to construct an elasticBeamColumn element object. The arguments for the construction of an elastic beam-column element depend on the dimension of the problem, ndm:
For a two-dimensional problem:
| element elasticBeamColumn $eleTag $iNode $jNode $A $E $Iz $transfTag <-mass $massDens> <-cMass> |
For a three-dimensional problem:
| element elasticBeamColumn $eleTag $iNode $jNode $A $E $G $J $Iy $Iz $transfTag <-mass $massDens> <-cMass> |
For two- and three-dimensional problems:
| element elasticBeamColumn $eleTag $iNode $jNode $secTag $transfTag <-mass $massDens> <-cMass> |
| $eleTag | unique element object tag |
| $iNode $jNode | end nodes |
| $A | cross-sectional area of element |
| $E | Young's Modulus |
| $G | Shear Modulus |
| $J | torsional moment of inertia of cross section |
| $Iz | second moment of area about the local z-axis |
| $Iy | second moment of area about the local y-axis |
| $secTag | identifier for previously-defined section object (assumes E = G = 1.0 and determinate A, Iz, Iy, and J from section stiffness) |
| $transfTag | identifier for previously-defined coordinate-transformation (CrdTransf) object |
| $massDens | element mass per unit length (optional, default = 0.0) |
| -cMass | to form consistent mass matrix (optional, default = lumped mass matrix) |
NOTE:
The valid queries to an elastic beam-column element when creating an ElementRecorder object are 'force'.
EXAMPLE:
element elasticBeamColumn 1 2 4 5.5 100.0 1e6 9; # elastic element tag 1 between nodes 2 and 4 with area 5.5, E 100 and Iz 1e6 which uses transformation 9
Code Developed by: fmk