Fw: ACI Grade Beam Construction Joint

[Rand W Holtham]

Listers

Where can I find an (ACI accepted?) grade beam construction joint detail?

TIA,

Rand

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[Harold Sprague]

I don't think that you will find any "ACI accepted" grade beam construction joint details.  But this is a resource to a lot of details assembled by various Govt. agencies including the US Army Corps of Engineers and NAVFAC. 
http://www.wbdg.org/ccb/browse_lib.php?l=07

Regards, Harold Sprague


 
> Subject: Fw: ACI Grade Beam Construction Joint
> To: sea...@seaint.org
> From: RHol...@CBI.com
> Date: Mon, 16 Nov 2009 12:09:10 -0600

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[Harold Sprague]

Rand,
Just extend the rebar beyond the joint and provide a class B lap unless the bar is too big, then use a mechanical splice.  On the vertical face, I have seen keys, roughened surface to 1/4" amplitude, or Stay-Form to provide a roughened surface with no prep to provide a shear interlock.  Some engineers like to provide Z shear bars across the interface to assure a mechanical connection across the interface.  But that is more holes in the forms.
 
Stay-Form makes the contractors happy, provides a roughened surface, and makes me happy.  They have some very good details. 
http://amico-stayform.com/pdf/Stay-Form%20Details%20b&w.pdf
 
Regards, Harold Sprague


 

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From: sprag...@hotmail.com
To: sea...@seaint.org
Subject: RE: ACI Grade Beam Construction Joint
Date: Thu, 19 Nov 2009 15:49:33 +0000

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[Rand W Holtham]

Thanks Harold!

Harold Sprague
<spraguehope@hotm
ail.com> To
<rhol...@cbi.com>,
11/19/2009 11:44 <sea...@seaint.org>
AM cc

Subject
Please respond to RE: ACI Grade Beam Construction
<sea...@seaint.or Joint
g>

Rand,
Just extend the rebar beyond the joint and provide a class B lap unless the
bar is too big, then use a mechanical splice. On the vertical face, I have
seen keys, roughened surface to 1/4" amplitude, or Stay-Form to provide a
roughened surface with no prep to provide a shear interlock. Some
engineers like to provide Z shear bars across the interface to assure a
mechanical connection across the interface. But that is more holes in the
forms.

Stay-Form makes the contractors happy, provides a roughened surface, and
makes me happy. They have some very good details.
http://amico-stayform.com/pdf/Stay-Form%20Details%20b&w.pdf

Regards, Harold Sprague

From: sprag...@hotmail.com

http://www.wbdg.org/ccb/browse_lib.php?l=07

Regards, Harold Sprague

Bing brings you maps, menus, and reviews organized in one place. Try it
now.

Windows 7: It works the way you want. Learn more.

[ghan...@umn.edu]

Wondering if someone can refer a design handbook for Structural Design of
Underground appruntences such as prepoured Inverts, Prepoured Pipes, and
for Safety Ramps
Cattle Pass
Temporary Barriers
Single Step Barriers
Pier Protection
Asymmetrical Barriers

[Harold Sprague]

Foundation Engineering Handbook, Winterkorn and Fang, Chapter 23.

Regards, Harold Sprague

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