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Re: Bent Plate

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bent plates are (almost) never worse than rolled angles; angles are usually
cheaper to cut and fit..
some ph.d. will maybe argue about the stuff which the bents are made
from...but for the usual applications they are as good as rolled angles
(perhaps better, because they fit better.pun unintenteded), and the
stiffening (or hardening) thing plays with, not against, you..
there are some situation where a rolled angle is better suited (because of
the rolling radius inside), but this is very limited in scope..

regards to the first world
andrea


----- Original Message -----
From: "Balmer James" <James.Balmer(--nospam--at)rsandh.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Wednesday, July 25, 2001 12:04 AM
Subject: RE: Bent Plate


> After yielding, which has occurred by the nature of making a bent plate,
the
> yielded segment of the plate follows the stress strain curve "E" slope
back
> to the point of zero stress (not zero strain).  Future new loading will
> follow the same "E" slope back up.
>
> As long as your design keeps stresses in the elastic realm with the
loading,
> the bent plate will perform the same as an unbent plate.  If loaded above
> the yield to failure, the portion of the plate that has a head start (bent
> portion) will reach the ultimate strain first.  Keep the stress to the
> allowable % of fy and you should not have a problem.
>
> Make sure you pay attention to the bend line direction and final rolling
> direction.
>
> James
>
> -----Original Message-----
> From: Todd Hill [mailto:thill(--nospam--at)tkarch.com]
> Sent: Tuesday, July 24, 2001 4:39 PM
> To: 'seaint(--nospam--at)seaint.org'
> Subject: RE: Bent Plate
>
>
> Actually, the loading varies along with the size of the angles.
> I was just curious if the steel plate would lose any capacity after it is
> bent during fabrication?
> TIA,
> Todd
>
> -----Original Message-----
> From: Scott A. Dunham, PE [mailto:sadunham(--nospam--at)gte.net]
> Sent: Tuesday, July 24, 2001 3:27 PM
> To: seaint(--nospam--at)seaint.org
> Subject: Re: Bent Plate
>
>
> What size angle was called for?  What's the loading?
>
> Scott A. Dunham, PE
> Dunham Engineering Services
> Dothan, AL
> 334-678-6948
>
> ----- Original Message -----
> From: "Todd Hill" <thill(--nospam--at)tkarch.com>
> To: "SEAINT (E-mail)" <SEAINT(--nospam--at)SEAINT.ORG>
> Sent: Tuesday, July 24, 2001 11:30 AM
> Subject: Bent Plate
>
>
> > I have a continuos bearing angle called out and the fabricator wants to
> > substitute with a bent plate.
> > I don't know why he wants to do this, yet.
> > Regardless, my question is on the strength of a bent plate.
> > Is there any loss of bending capacity of the plate due to the initial
> > bending of the plate during fabrication?
> > This kind of reverts back to the loss in rebar strength discussion after
> > bending.
> >
> > Todd Hill, P.E.
> > TK Architects, Inc.
> > 816-842-7552 ext. 233
> >
> >
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