Elastic Beam Column Element with Stiffness Modifiers: Difference between revisions

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element ModelasticBeam2d 1  2  4  5.5  100.0  1e6  4.0  4.0  2.0  1; # elastic element tag 1 between nodes 2 and 4 with area 5.5, E 100 and IZ 1e6 with K11=K33=4.0, K44=2.0 which uses transformation 1
element ModelasticBeam2d 1  2  4  5.5  100.0  1e6  4.0  4.0  2.0  1; # elastic element tag 1 between nodes 2 and 4 with area 5.5, E 100 and IZ 1e6 with K11=K33=4.0, K44=2.0 which uses transformation 1


'''References''':
{|
|  style="width:5px" | '''[1]''' || Ibarra, L. F., and Krawinkler, H. (2005). “Global collapse of frame structures under seismic excitations,” Technical Report 152, The John A. Blume Earthquake Engineering Research Center, Department of Civil Engineering, Stanford University, Stanford, CA. [electronic version:  https://blume.stanford.edu/tech_reports]
|-
|  '''[2] ''' || Zareian, F. and Medina, R. A. (2010). “A practical method for proper modeling of structural damping in inelastic plane structural systems,” Computers & Structures, Vol. 88, 1-2, pp. 45-53.
|-
|  '''[3] ''' || Zareian, F. and Krawinkler, H. (2009). "Simplified performance-based earthquake engineering" Technical Report 169, The John A. Blume Earthquake Engineering Research Center, Department of Civil Engineering, Stanford University, Stanford, CA. [electronic version:  https://blume.stanford.edu/tech_reports]
|-
|}
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----


Code Developed by: <span style="color:blue"> by Dr. Dimitrios G. Lignos (McGill University) </span>
Code Developed by: <span style="color:blue"> by Dr. Dimitrios G. Lignos (McGill University) </span>

Revision as of 04:09, 14 February 2011



This command is used to construct a ModelasticBeam2d element object. The arguments for the construction of an elastic beam-column element with stiffness modifiers is for 2-D problems

element ModelasticBeam2d $eleTag $iNode $jNode $A $E $Iz $K11 $K33 $K44 $transfTag


$eleTag unique element object tag
$iNode $jNode end nodes
$A cross-sectional area of element
$E Young's Modulus
$Iz second moment of area about the local z-axis
$K11 stiffness modifier for translation
$K33 stiffness modifier for translation
$K44 stiffness modifier for rotation
$transfTag identifier for previously-defined coordinate-transformation (CrdTransf) object


NOTE:

The valid queries to an elastic beam-column element when creating an ElementRecorder object are 'force.'


EXAMPLE:

element ModelasticBeam2d 1 2 4 5.5 100.0 1e6 4.0 4.0 2.0 1; # elastic element tag 1 between nodes 2 and 4 with area 5.5, E 100 and IZ 1e6 with K11=K33=4.0, K44=2.0 which uses transformation 1

References:

[1] Ibarra, L. F., and Krawinkler, H. (2005). “Global collapse of frame structures under seismic excitations,” Technical Report 152, The John A. Blume Earthquake Engineering Research Center, Department of Civil Engineering, Stanford University, Stanford, CA. [electronic version: https://blume.stanford.edu/tech_reports]
[2] Zareian, F. and Medina, R. A. (2010). “A practical method for proper modeling of structural damping in inelastic plane structural systems,” Computers & Structures, Vol. 88, 1-2, pp. 45-53.
[3] Zareian, F. and Krawinkler, H. (2009). "Simplified performance-based earthquake engineering" Technical Report 169, The John A. Blume Earthquake Engineering Research Center, Department of Civil Engineering, Stanford University, Stanford, CA. [electronic version: https://blume.stanford.edu/tech_reports]

Code Developed by: by Dr. Dimitrios G. Lignos (McGill University)

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