3.1.9.1. Lobatto

This command is used to create a Gauss-Lobatto beamIntegration object. Gauss-Lobatto integration is the most common approach for evaluating the response of ForceBeamColumn (`Neuenhofer and Filippou 1997`_) because it places an integration point at each end of the element, where bending moments are largest in the absence of interior element loads.

beamIntegration 'Lobatto' tag secTag N

Argument	Type	Description
$tag	integer	Unique object tag
$sectTag	integer	A previous-defined section
$N	integer	Number of Integration Points along the elementa

Example:

The following examples demonstrate the command in Tcl and Python script to add a Lobatto beam integration with tag 2 and 6 integration points that uses the previously defined section whose tag is 1.

1. Tcl Code

beamIntegration 'Lobatto' 2 1 6

2. Python Code

beamIntegration('Lobatto',2,1,6)