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Pressure under foudation raft???

9 REPLIES 9
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Message 1 of 10
athurD
839 Views, 9 Replies

Pressure under foudation raft???

Hi all.

I is prolem, I think Pressure under foudation raft >0. Why results Pressure Robot <0 ???????

2012-10-06_0939.png

9 REPLIES 9
Message 2 of 10
tony.ridley
in reply to: athurD

Because it's a reaction?  Under vertical load, a pinned column will have +ve reaction.  So under applied load, a soil will have a +ve reaction too?

 

Message 3 of 10
athurD
in reply to: tony.ridley

Thank tony.

So now I have to do to pressure under the foundation raft <0 ??. This is an image of my model .

 

2012-10-08_1349_001.png

Message 4 of 10
Artur.Kosakowski
in reply to: athurD

As you are supposed to tell in which direction the uplift is possible you should set UZ+ rather than UZ- (at least for a typical building Smiley Happy).

 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.



Artur Kosakowski
Message 5 of 10
athurD
in reply to: Artur.Kosakowski

Thank Artur.

i selection U+.

But why Run it too long, is there a way to make it run faster???

2012-10-08_1547.png

 

 

Message 6 of 10
athurD
in reply to: athurD

Hi. i is prolem.

How do I know choose U + or U- ??????

Message 7 of 10
Artur.Kosakowski
in reply to: athurD

You can try to use the multi-threaded solver.



Artur Kosakowski
Message 8 of 10
Artur.Kosakowski
in reply to: athurD

1. Check what is the orientation of the local Z axis of the panel

2. If you want to allow the panel to move (be uplifted) in the direction of the positive Z axis then you select UZ+. Otherwise UZ-.

 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.



Artur Kosakowski
Message 9 of 10
athurD
in reply to: Artur.Kosakowski

Hi.

      "You can try to use the multi-threaded solver."

Sorry I do not quite understand, can you give me an picture example.

thank Artur

Message 10 of 10
Artur.Kosakowski
in reply to: athurD

multi.PNG



Artur Kosakowski

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