3.1.10.62. KikuchiBearing Element

This command constructs a three-dimensional elastomeric bearing element with multiple normal springs parallel to the local x-axis and multiple shear springs distributed in the local y-z plane. Use with -ndm 3 -ndf 6.

element KikuchiBearing $eleTag $iNode $jNode -shape $shape -size $size $totalRubber <-totalHeight $totalHeight> -nMSS $nMSS -matMSS $matMSSTag <-limDisp $limDisp> -nMNS $nMNS -matMNS $matMNSTag <-lambda $lambda> <-orient <$x1 $x2 $x3> $yp1 $yp2 $yp3> <-mass $m> <-noPDInput> <-noTilt> <-adjustPDOutput $ci $cj> <-doBalance $limFo $limFi $nIter>

Argument

Type

Description

$eleTag

integer

unique element tag

$iNode $jNode

integer

end nodes

$shape

string

bearing cross section: round or square (-shape)

$size

float

characteristic size of cross section (-size)

$totalRubber

float

total rubber thickness (-size)

$totalHeight

float

total bearing height (optional; default is distance between nodes)

$nMSS

integer

number of multiple shear springs (-nMSS)

$matMSSTag

integer

uniaxial material tag for shear springs (-matMSS)

$limDisp

float

limit displacement for MSS equivalent coefficient (optional)

$nMNS

integer

number of multiple normal springs (-nMNS)

$matMNSTag

integer

uniaxial material tag for normal springs (-matMNS)

$lambda

float

normal spring distribution parameter (optional)

$m

float

element mass (optional)

$ci $cj

float

P-Delta output adjustment coefficients (-adjustPDOutput)

$limFo $limFi $nIter

float float integer

force-balance iteration controls (-doBalance)

Note

  1. Flags -noPDInput and -noTilt disable P-Delta input and tilt effects respectively.

  2. Valid Element Recorder queries include globalForce, localForce, basicForce, localDisplacement, and basicDeformation.

Example

  1. Tcl Code

element KikuchiBearing 1 1 2 -shape round -size 0.5 0.2 -nMSS 16 -matMSS 1 -nMNS 4 -matMNS 2

  1. Python Code

element('KikuchiBearing', 1, 1, 2, '-shape', 'round', '-size', 0.5, 0.2,
        '-nMSS', 16, '-matMSS', 1, '-nMNS', 4, '-matMNS', 2)

Code developed by: Ken Ishii and Masaru Kikuchi