Recording at common node of column and brace

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ashf
Posts: 31
Joined: Sat Sep 26, 2015 5:06 am

Recording at common node of column and brace

Post by ashf »

hi,
I have a problem with recording base reaction.when I model a column by elastic element and a brace connecting it at base by concentrated plasticity spring,how I should record reaction at their common node?
when I record only reaction of spring,I get less strength,but I see strength degradation,
when I record reaction of both node,I get strange curve without any strength degradation and push curve is similar to below:
...............................*
..............................*
.............................*
...........................*
........................*
......................*
...................*
...............*
..........*
....*
can anybody help me?
thanks in advance
selimgunay
Posts: 916
Joined: Mon Sep 09, 2013 8:50 pm
Location: University of California, Berkeley

Re: Recording at common node of column and brace

Post by selimgunay »

You should record the reaction at the fixed node.
ashf
Posts: 31
Joined: Sat Sep 26, 2015 5:06 am

Re: Recording at common node of column and brace

Post by ashf »

thank you very much.
Do you mean the common node?as I said the curve is very strange!!in your opinion,above figure is reseanable?
selimgunay
Posts: 916
Joined: Mon Sep 09, 2013 8:50 pm
Location: University of California, Berkeley

Re: Recording at common node of column and brace

Post by selimgunay »

I don't think it is the common node. It should be the fixed node. Do you have a sketch of your geometry and the nodes? Could you upload it? Even hand sketch is fine.
ashf
Posts: 31
Joined: Sat Sep 26, 2015 5:06 am

Re: Recording at common node of column and brace

Post by ashf »

here is a summery of my sketch,specially in base nodes:
https://drive.google.com/file/d/0BxSrrh ... sp=sharing
thanks a lot
selimgunay
Posts: 916
Joined: Mon Sep 09, 2013 8:50 pm
Location: University of California, Berkeley

Re: Recording at common node of column and brace

Post by selimgunay »

You should record the reactions at nodes 1000,1100, 1200, etc.
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