Grasshopper

algorithmic modeling for Rhino

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Modify Element (karamba)

Component Index > Karamba > Model > Modify Element (karamba)

Modifies all types of elements or creates element modifiers that do this when the model is assembled.

Inputs

NameIDDescriptionType
BeamBeamBeam to modify on the fly or no input if modification shall take place in the model based on the identifier.Element
Beam identifierBeamIdNew Identifier for the given beam or identifier of the beam in the model which should be modified. Use a regular expression to modify more than one beam. Regular expressions start with '&'.String
Height[cm]HeightHeight [cm] of cross-section to given value in centimeter if >0.Number
Thickness[cm]ThicknessThickness [cm] of walls of cross-section if >0.Number
ActiveActiveIf true the beam is active in structure.Boolean
BendingBendingIf true the beam has bending stiffness. Otherwise it is a truss.Boolean
local eccentricity [cm]ecce-locVector of eccentricity in [cm] of cross section centroid with respect to beam axis in local beam coordinates.Vector
global eccentricity [cm]ecce-gloVector of eccentricity in [cm] of cross section centroid with respect to beam axis in global coordinates.Vector
Consider BucklingBucklingIf true cross section optimization of the element is done considering buckling. Deactivating buckling can be useful for simulating slender elements which you want to pretension in reality but not in the numerical model.Boolean
Buckling Length Y[m]BklLenYBuckling length [m] of element in local Y-direction if > 0.Number
Buckling Length Z[m]BklLenZBuckling length [m] of element in local Z-direction if > 0.Number
Buckling Length LT[m]BklLenLTBuckling length [m] of element for lateral torsional buckling if > 0.Number
lg[cm]lgDistance of transverse load [cm] from the center of shear of the cross section. Is positive if the load points towards the shear center and acts destabilizing for lateral torsional buckling.Number
NII[kN]NIINormal force [kN] that induces second order theory effects. In case of trusses or beams it is an axial normal force. Tension is positive, compression negative.Number
X-oriX-oriSet X-Orientation of the beam: Flips X-axis of the beam if it points in opposite direction to this vector.Vector
Z-oriZ-oriNew orientation of the local Z-axis of beam.Vector
Alpha [deg]AlphaRotation angle about local X-axis [deg] in addition to orientation given by orientation vector.Number

Outputs

NameIDDescriptionType
ElementElemModified element or element-modifier.Element

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