reset an loadConst commands

Forum for OpenSees users to post questions, comments, etc. on the use of the OpenSees interpreter, OpenSees.exe

Moderators: silvia, selimgunay, Moderators

Post Reply
archeura
Posts: 12
Joined: Tue Feb 14, 2006 6:27 am
Location: Facolt� di Ingegneria Bologna

reset an loadConst commands

Post by archeura »

Hi all!
I’ve some doubts about reset and loadConst commands.
I’m trying to perform subsequent dynamic analysis on the same model for IDA-analysis construct.
The algorithm is the follow:
1) perform static analysis for vertical loads
2) set loadConst –time 0.0
3) perform dynamic analysis for the actual increment factor (the pattern is scaled in its definition with –factor x)
4) get all required values
5) remove dynamic loadPattern defined in 3)
6) reset the domain (with ‘reset’ command)
7) re-do 3 to 6 for a new increment factor x

My doubt is: when I reset the domain the vertical loads effects (forces and deformations) are still reset to the start, even if I used the ‘loadConst’ command? So, have I to put n° 1) and 2) after 3)? In that case for every increment factor the static analysis for vertical load is repeated.

Thanks!
Best regards.
fmk
Site Admin
Posts: 5884
Joined: Fri Jun 11, 2004 2:33 pm
Location: UC Berkeley
Contact:

Post by fmk »

reset brings you back to the start .. everything in the domain is reset to as it was
when the object was first created .. if you want to go back to a certain state of the model
use the database command and save after step 2, after each dynamic analysis do a restore
(you can skip step 5 and replace step 6 with a restore.
archeura
Posts: 12
Joined: Tue Feb 14, 2006 6:27 am
Location: Facolt� di Ingegneria Bologna

Post by archeura »

Thanks!
Post Reply