YamamotoBiaxialHDR Element

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This command is used to construct a YamamotoBiaxialHDR element object, which is defined by two nodes. This element can be used to represent the isotropic behavior of high-damping rubber bearing in the local y-z plane.

element YamamotoBiaxialHDR $eleTag $iNode $jNode $Tp $DDo $DDi $Hr <-coRS $cr $cs> <-orient <$x1 $x2 $x3> $y1 $y2 $y3> <-mass $m>

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$eleTag	unique element object tag
$inode $jnode	end nodes
$Tp	compound type
	= 1 : X0.6R manufactured by Bridgestone corporation.
$DDo	outer diameter [m]
$DDi	bore diameter [m]
$Hr	total thickness of rubber layer [m]
Optional Data
$cr $cs	coefficients for shear stress components of <math>\tau_{r}</math> and <math>\tau_{s}</math>
$x1 $x2 $x3	vector components in global coordinates defining local x-axis
$yp1 $yp2 $yp3	vector components in global coordinates defining vector yp which lies in the local x-y plane for the element
$m	element mass [kg]

NOTES:

1) The valid queries to a YamamotoBiaxialHDR element when creating an ElementRecorder object are 'globalForce', 'localForce', 'basicForce', 'localDisplacement' and 'basicDeformation'.

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EXAMPLE:

element YamamotoBiaxialHDR 1 1 2 1 1.300 0.030 0.261 –orient 0 0 1 1 0 0

YamamotoBiaxialHDR_Sample.tcl, YamamotoBiaxialHDR_input_X.tcl, YamamotoBiaxialHDR_input_Y.tcl

     

     

REFERENCES:

Masashi Yamamoto, Shigeo Minewaki, Harumi Yoneda and Masahiko Higashino, "Nonlinear behavior of high-damping rubber bearings under horizontal bidirectional loading: full-scale tests and analytical modeling", Earthquake Engineering and Structural Dynamics, 41, 1845-1860, 2012.

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Code Developed by: mkiku