Joint2D Element: Difference between revisions
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(Created page with '{{CommandManualMenu}} This command is used to construct a two-dimensional beam-column-joint element object. The joint2D element is a useful element for modeling rotational defor...') |
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| '''$LrgDspTag''' || tag for the large deformation condition: | | '''$LrgDspTag''' || tag for the large deformation condition: | ||
|- | |- | ||
|0 - for small deformations and constant geometry | | || 0 - for small deformations and constant geometry | ||
|- | |- | ||
|1 - for large deformations and time varying geometry | | || 1 - for large deformations and time varying geometry | ||
|- | |- | ||
|2 - for large deformations ,time varying geometry and length correction | | || 2 - for large deformations ,time varying geometry and length correction | ||
|} | |} | ||
Revision as of 18:04, 26 April 2011
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This command is used to construct a two-dimensional beam-column-joint element object. The joint2D element is a useful element for modeling rotational deformability of beam ends.
| element Joint2D $eleTag $Nd1 $Nd2 $Nd3 $Nd4 $NdC <$Mat1 $Mat2 $Mat3 $Mat4> $MatC $LrgDspTag |
| $eleTag | unique element object tag |
| $Nd1 $Nd2 $Nd3 $Nd4 | integer tags indicating four external nodes of beam-column joint ( |
| $NdC | integer tags indicating the central node of beam-column joint (the tag is used to generate the internal node, thus, the node should not exist in the domain) |
| $Mat1 | uniaxial material tag for rotational spring at node 1 (optional) |
| $Mat2 | uniaxial material tag for rotational spring at node 2 (optional) |
| $Mat3 | uniaxial material tag for rotational spring at node 3 (optional) |
| $Mat4 | uniaxial material tag for rotational spring at node 4 (optional) |
| $MatC | uniaxial material tag for rotational spring of the central node |
| $LrgDspTag | tag for the large deformation condition: |
| 0 - for small deformations and constant geometry | |
| 1 - for large deformations and time varying geometry | |
| 2 - for large deformations ,time varying geometry and length correction |
EXAMPLE:
REFERENCES:
Lowes, Laura N.; Mitra, Nilanjan; Altoontash, Arash A beam-column joint model for simulating the earthquake response of reinforced concrete frames PEER-2003/10 Pacific Earthquake Engineering Research Center, University of California, Berkeley 2003 59 pages (400/P33/2003-10)
Code Developed by: Nilanjan Mitra, Cal Poly