Global forces recorder

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

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giacomovincenzo
Posts: 39
Joined: Thu Feb 21, 2008 6:44 am
Location: Politecnico di Torino

Global forces recorder

Post by giacomovincenzo »

Dear all,

I'm getting as element output the global forces. In 3D analysis, these forces are, of course, 12.
The questions are:
1. Are these forces given in this order: FX, FY, FZ, MX, MY, MZ, being X,Y,Z the global axes?;
2. do the first six refer to the first node and the second six to the 2nd node, in the order I have specified the element?

Thanks!!!

Giacomo
silvia
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Location: Degenkolb Engineers
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Post by silvia »

yes, and yes.
Silvia Mazzoni, PhD
Structural Consultant
Degenkolb Engineers
235 Montgomery Street, Suite 500
San Francisco, CA. 94104
giacomovincenzo
Posts: 39
Joined: Thu Feb 21, 2008 6:44 am
Location: Politecnico di Torino

Thanks

Post by giacomovincenzo »

Thanks Silvia!

Giacomo
fengxiahan
Posts: 11
Joined: Sun May 25, 2008 11:03 pm
Location: Chongqing University

Post by fengxiahan »

I got the element global force output,but I found there are 7 value for every node,why?
thank for your help!
silvia
Posts: 3909
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Location: Degenkolb Engineers
Contact:

Post by silvia »

time in the first column.
Silvia Mazzoni, PhD
Structural Consultant
Degenkolb Engineers
235 Montgomery Street, Suite 500
San Francisco, CA. 94104
fengxiahan
Posts: 11
Joined: Sun May 25, 2008 11:03 pm
Location: Chongqing University

Post by fengxiahan »

thanks for silver,but the time is -1757.26,-3511.82......, I do not understand it.
thanks for you again.
silvia
Posts: 3909
Joined: Tue Jan 11, 2005 7:44 am
Location: Degenkolb Engineers
Contact:

Post by silvia »

if you are doing a static analysis, this is pseudo time, based on your load pattern.
Silvia Mazzoni, PhD
Structural Consultant
Degenkolb Engineers
235 Montgomery Street, Suite 500
San Francisco, CA. 94104
fengxiahan
Posts: 11
Joined: Sun May 25, 2008 11:03 pm
Location: Chongqing University

Post by fengxiahan »

oh, I see, thank you very much!
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