Thursday, November 15, 2007

Re: Transfer Girder Design having more Depth

Now that I'm back in the office, I found my reference.

If the effective depth is greater than 36 inches then skin reinforcement is
required per 10.6.7 of ACI.

You're probably already aware of that provision if you're used to working
with fairly deep beams. But, it's always seemed like an obscure, easy to
overlook provision to me.

Josh Plummer, SE

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From: "Josh Plummer" <josh.plummer@cox.net>
To: <seaint@seaint.org>
Subject: RE: Transfer Girder Design having more Depth


Scott / Samiappan -

I don't have my ACI in front of me, and I don't have real world design
experience with this type of a concrete beam. So, I may be completely wrong.


But, I recall there being a "skin reinforcement" requirement in ACI that
would get triggered by a beam of this depth? I don't recall all the
details, but when I last studied the concept (and concluded that I didn't
need skin reinforcement) I made a mental note that it would apply to beams
like this.

Sincerely,

Josh Plummer, SE

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On 11/14/07 1:46 AM, "Samiappan Srinivasan" <ssrinivasan@lntecc.com> wrote:

Hi,

I am designing a Transfer Girder, having Size of 1750 x 3000. To find Area
of Reinforcement, I am considering only Bending Moment. (Span of Beam is
18m)

Is there any special condition, I have to check. Because the Depth of Beam
is 3m.

What is the Maximum Depth for Beam Members?.

Can anybody having the design experiences share some knowledge?

Thanks in advance.


Best Regards,
S.Srinivasan.

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