3.1.7.11. Isolator2springSection

This command constructs a two-spring isolator section based on the Koh and Kelly model for elastomeric bearing buckling, with optional material nonlinearity and strength degradation. In Tcl the command is Iso2spring; in Python it is Isolator2spring.

section Iso2spring $secTag $tol $k1 $Fy $k2 $kv $hb $Pe <$Po>

Example

  1. Tcl Code

section Iso2spring 1 1.0e-6 100.0 50.0 10.0 500.0 6.0 200.0 0.0

  1. Python Code

ops.section('Isolator2spring', 1, 1.0e-6, 100.0, 50.0, 10.0, 500.0, 6.0, 200.0, 0.0)

Code Developed by: fmk