Bulk Water Storage Tank - Braithwaite
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now that I look at the website... maybe I have seen them and never knew there was water in them... seems like a waste of material and money... why not have a welded cylinder? mmmm
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@unknownuser said:
now that I look at the website... maybe I have seen them and never knew there was water in them... seems like a waste of material and money... why not have a welded cylinder? mmmm
Kristoff,
Why not have a welded cylinder... ???
The Company that have been producing these tanks have been doing so for over 100 years so they must be doing something right.
They are made from 1000mm x 1000mm (3 ' square) Panels that are flanged on the outside and typically bolted together from the outside.
This means:- They can be assembled by semi-skilled labour very quickly. (Anyone who has a Spanner [wrench]). Effectively it is a kit.
- The pieces can be transported very easily. (You can pick them up). Ideal for remote / difficult locations eg where there are no roads / airstrips or inside larger buildings that have small / difficult entrances / access problems.
- They can be bolted together to form very large tanks.
- They can be extended in size if reqd.
- Large cylinders = difficult to transport / erect - where you may also need Structural Engineers / Cranes / On-Site Welding / Specialist Skills On-Site.
(PS I don't work for Braithwaite !!!)
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Regards
Howard L'
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quote="modelhead"]
What kind of material is used to seal between seams?
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I'm not sure.
I can only direct you to the website in my original post of this thread for further info.
The panels are typically galvanised steel. It's possible that they are just very well made and are not sealed at all between panels.
You would have to be careful with what you choose as a sealant (if any) as these tanks are frequently used for storing drinking water.
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Howard L' -
Howard,
In the photos on Brathwaite's web site it appears that the star pattern on the panels is embossed, presumably to provide added structural rigidity. On your model, though, the pattern seems to be just drawn on the flat surface.
Comment?
-Gully
poster-Gully Foyle
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quote="Gully Foyle"]
Howard,In the photos on Brathwaite's web site it appears that the star pattern on the panels is embossed, presumably to provide added structural rigidity. On your model, though, the pattern seems to be just drawn on the flat surface.
Comment?
-Gully
[/quote]
Gully,
The star pattern has been drawn flat to give the look and feel of the original panels without the overhead (poly count and file size) that an embossed / raised star shape would give.
(Considerable increase in poly count / file size in this case).
There are no prizes for over modelling / over detailing - only reduced performance of your PC.
From a distance, I think the panels as drawn give a fair representation of the originals (I hope).
It's always a balance between detail and poly count / file size and also the time you have allocated to a particular project / task.
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Howard L' -
Howard,
Here's the tank with the star pattern embossed. I made each point of the star a separate component, and I added the quarter circular elements to the corners of the panels as shown in the photo. Size of model as you posted it was 53.3 kb. This version is 57.8. Not too significant an increase for much greater accuracy and, I think, a more realistic appearance.
As Jean would say, just ideas.
-Gully
poster-Gully Foyle
tank.skp -
@unknownuser said:
Howard,
Here's the tank with the star pattern embossed. I made each point of the star a separate component, and I added the quarter circular elements to the corners of the panels as shown in the photo. Size of model as you posted it was 53.3 kb. This version is 57.8. Not too significant an increase for much greater accuracy and, I think, a more realistic appearance.
As Jean would say, just ideas.
-Gully
Gully,
I've never seen tanks with the panels as you've drawn them ie with the quarter circle in the corners.
It's probably to strengthen / stiffen them up.
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Your idea to draw only 1/4 of each panel and rotate is a good one.
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See attached - version without quarter circles in the corners
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Regards
Howard L'
Water Storage Tank Braithwaite V2.skp
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Howard,
I was basing the panel configuration with the corner quarter-circular elements on a picture from the Brathwaite web site, namely, this one:
http://www.braithwaite.co.uk/graphics/products/steel_export2.jpgAnyway, good show. I like the revised appearance you have achieved. Good work.
Best,
poster-Gully Foyle
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Gully
You have to weigh the polygon count as much as the file size. Alan did one like that in the old forum with a 100Kb file that brought most computers to their knees. He used a really high poly object as a component multiplied a hundred times. The file size was just that of the one component, but the polygon count was in the millions as I remember.
Kelly
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Kelly,
Fortunately for me, my computer doesn't have any knees, so I guess I dodged a bullet that time.
Nonetheless, thanks for the tip,
-Gully
poster-Gully Foyle
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