Applying Hydrostatic pressure to only a section of a panel

[jonathan.leddy]

Hi,

I am designing a waterretainng tank which has two compartments. In design I need to consider the load effects when both sides are loaded and also when one side is loaded only.

When I apply hydrostatic loads I seem to be only able to specify the pressure details then apply to the full panel which works ok for the "both sides loaded scenario" but not the case where only 1 side is loaded. The outer wall of the model, which was defined in revit, spans the full wall length. I know that the panel could be shortened to stop at the internal wall then create another panel for the other side but this seems counter intuitive.

Is there a way when applying to hydrostatic pressure to a wall that you can specify a contour to which the load applies? I can see geometcial limits option in the load definition box but really struggle to understand what it is saying, maybe it is the solution though?

Thanks for your help guys.

JTL 

[Artur.Kosakowski]

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.

[jonathan.leddy]

Thank you for your reply Artur.

Unfortunately I do not understand how to do what you suggest. I have drawn a line where the panel would be split but I can't seem to isolate the hydrostatic pressure to one side of the panel. Maybe I did not properly convey my problem. See the image attached.

you can see more clearly that the panel spans the whole length of the structure, however I wish to only load hydrostatic pressure to one side. can the panel be split easily or is there a way to apply the hydrostatic load in a contour type fashion that would allow this?

many thanks,

JTL

[napooil]

http://help.autodesk.com/view/RSAPRO/2015/ENU/?guid=GUID-F17A8407-DE47-44A2-857E-1AE946B8385F

[Artur.Kosakowski · Accepted solution]

I'm sorry I misunderstood your question and assumed that you wanted to limit the horizontal level of the load. Please see the movie:

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.

[jonathan.leddy]

Thank you Artur, this is perfect. I understand now how the geometrical limits are used in this type of loading. Many thanks.

JTL

[alex.mcfadyen]

Hello @Artur.Kosakowski 

Could you please share this video again, it looks like it cannot be viewed anymore?

Thanks,

Alex

[Artur.Kosakowski]

Hi @alex.mcfadyen 

I can't see any issue watching it. Anybody else having such situation as well?

[Romanich]

Hi @alex.mcfadyen,

Try to check with another browser. Firefox - no issues with this video.

[alex.mcfadyen]

yes I can see it now, 

Thanks for the help @Romanich @Artur.Kosakowski 

[Thomas.c.horn]

Hi all,

I have applied an hydrostatic load to the structure in the attached.  I inputted an h=583 which is my water elevation top and the load extends to the bottom of my structure.  It appears that the load is applied in the correct directional but there is small vector at the top that appears to be applied in the opposite direction (not wanted). The load vectors are also weirdly magnified.  With a quick check of reactions the load is not being applied as intended. Anyone experience this issue before? 

Thanks!

[jonathan.leddy]

Hi Thomas,

This is ok - just a graphical representation because the force is resolving to 0. I actually think if you split the wall panel at the water level so the 0 point is the boundary of where the loading is applied that this graphical issue does not occur - but from what you've shown this is quite typical

[Thomas.c.horn]

@jonathan.leddy thanks for your reply.  To clarify this is a volumetric object (sorry should have said in OP), so I don't believe I can split the side as mentioned.  As for the load I was able to apply them correctly with the geometric limits.