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# RE: How to Calculate strength of embedded beams

• To: "seaint(--nospam--at)seaint.org" <seaint(--nospam--at)seaint.org>
• Subject: RE: How to Calculate strength of embedded beams
• From: Richard Calvert <RichardC(--nospam--at)lbbe.com>
• Date: Fri, 25 Sep 2009 08:34:37 -0400
• Accept-language: en-US
• Acceptlanguage: en-US

```It sounds like this a beam by others - correct me if I'm wrong.
If that is the case however, you're check will mean nothing unless you consider all other loads the EOR is assuming this member to carry.  It is therefore a typical approach to provide the loads to the EOR and have him verify the member.

Otherwise, if the beam has shear studs (i.e. nelson studs) then both the AISC manual of steel construction and the Nelson's publications would be a good place to start.  If it does not shear studs, I would personally not be apt to consider composite action as you can't count on a predictable interaction.  In which case, a standard section modulus check is sufficient for this section.

-----Original Message-----
From: Kapil Nandwana [mailto:kapil.nandwana(--nospam--at)gmail.com]
Sent: Friday, September 25, 2009 8:15 AM
To: seaint(--nospam--at)seaint.org
Subject: How to Calculate strength of embedded beams

Hi All :

I need to calculate the strength of a W 8 X 24 beam embedded in the
concrete of 8" and which is 240" long .How should I proceed to solve
this problem. Is there any reference to which I can look into which
talks about the strength of embedded beams ?

Basically, the reason why I need this is because I am currently
working on a project where I have designed a test fixture for doors.
The base of the test fixture will be welded on to the W 8 X 24 beam
embedded in the concrete. FE Analysis predicts that the test fixture
will be pulling up the embedded beam with a force of 20,000 lbf .

Is the embedded beam able to resist that force without any failure to
concrete/beam ?

Thanks,

Kapil
Structural Engineer, EWI

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