Changing Node ID in OpenSees Example

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Sonice
Posts: 2
Joined: Sun Oct 03, 2021 4:00 am

Changing Node ID in OpenSees Example

Post by Sonice » Mon Oct 04, 2021 8:14 am

I took the TCL Example 8 provided in OpenSees website, and played around with it to learn more.
https://opensees.berkeley.edu/wiki/inde ... _W-Section

And I changed the Node ID in line 32 and 33 in file Ex7.Frame3D.build.RCsec.tcl as,
set Dlevel 100; # numbering increment for new-level nodes ___ Old value 10000
set Dframe [expr $NBay + 1]; numbering increment for new-frame nodes ___ Old Value 100

Hence the order of nodes is from 10101, 10102 .... 40404 to 105,106,....420.
The result is different such as DBase.out is slightly different. What could be the reason for different result. Node/element/constraint tag should not have changed the result. Am I incorrect?

Note: I only ran Ex7.Frame3D.build.RCsec.tcl.
Thanks and Regards,
Sanish Bhochhibhoya

selimgunay
Posts: 913
Joined: Mon Sep 09, 2013 8:50 pm
Location: University of California, Berkeley

Re: Changing Node ID in OpenSees Example

Post by selimgunay » Mon Oct 18, 2021 3:13 pm

It is likely because the node numbers used in the base shear recorder need to be updated as well.

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