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Folded Plate (curved)

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Veer007

Veer007

Civil/Environmental
Sep 7, 2016
379
Hey guys, me again, I have to provide a curved bent plate in a project and I'm pretty damn sure that's not possible in practice.

Is there any other specific way to do this without losing strength?

350px-Bend_allowance.svg_fymquq.png


Thanks in advance!!
 
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I am not sure for the reason that you are pretty sure that's not possible in practice.

The bending radius is limited to avoid damage to the plate , pipe , reinf.. ( E.g. EC -2 allows 4 Φ for the hooks , bends if the diameter Φ ≤ 16 mm ..)

You may look to Cold Formed Steel ..

 
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Guys, I am asking about the rolled bent plate, not the bent plate?

Thanks in advance!!
 
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You need to inform us of how the plate is intended to be used. If it's a concrete pour stop, sure bend it all to hell, but if it's going to support structural loading, more care is required.

There is no such thing as a "rolled bent pl," except perhaps in extremely unique cases in fields other than structural engineering.
 
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Cross section dimensions, axis of curving and curve radius are also relevant.

I would've thought you're in a position to educate us if you're working for the fabricator (?)
 
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I'm quite sure it's possible with the right equipment. Angles, tubes, I-shapes, and channels are curved all the time. Bend the plate and then curve it. I'm sure there are limits, but something can certainly be done.

As steveh49 mentioned, you've only given us a vague idea of what you're trying to do....
 
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He's not asking if you can bend a plate. He's asking if you can take a bent plate and then bend the bent plate into a curved member.

This is a good place to do some reading: AISC Design Guide 33

 
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Seems like bending and then curving a single plate would be an overly complicated process. A fabricator could easily curve a single plate and then weld it to another plate.
 
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Assuming you want a cross section like that, that is curved to a radius?
You'd need to talk to your fabricator. Anything can be done at a price, but that may or may not be worthwhile.
It wouldn't be a lot different from rolling an angle (which is very common) except that the tooling used for that wouldn't work here.
It would also depend on the thickness and dimensions.
It seems to me it would try to flatten out when rolled.
As mentioned above, depending on dimensions, building it up from a cone section and flat section may be more economical.
 
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Sorry for the lack of information provided by me... Here is the snap that can give you clear information, it is both folded and rolled plate.

As said above, I agree with the solution that we can use two horizontal and vertical plates welded together to form the l-shape, prior that it can be rolled as required

Any other way? I was just asking
snap_001_i2mvvz.png
RE structnmisc

Thanks in advance!!
 
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DrZoidberWoop said:
You need to inform us of how the plate is intended to be used. If it's a concrete pour stop, sure bend it all to hell, but if it's going to support structural loading, more care is required.
Click to expand...

Wow, it's good info, is there nothing we have to worry about if it is a pour stop, right.

Thanks in advance!!
 
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I think the point about the pour stop was that you can support the member at close spacing so the curving isn't a huge factor. You'd still consider the cross-section as a retaining element.

My gut feel is that curving would be cheaper than welding, but robot welders do good work. I also think this must be pissible to curve this judging from the I-beam curved about an arbitrary axis in the AISC design guide 33 - but do ask your fabricator and report back.
 
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okay, will do! thanks for the info.

Thanks in advance!!
 
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Material?, thickness?, dimensions?

Regards
 
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BPL3/8x2x7 approx. 10ft length, grade A36

Thanks in advance!!
 
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Normally there is no problem with your example. Contact a company that bends structural shapes.

Regards
 
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