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RE: Joints in retaining walls

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Sure...That could happen or not.  I was assuming that the footing is
continuous so the differential movement "generally" should be very small
pending that all other factors are equal.  We don't have all the design
criteria.  This seems to occur a lot in this forum.

Are there surcharge loads on one section and not another?
What is the soils information?
What type of footings?
What is the height(s) of the wall(s)?
Are there returns or pilasters?
Is the wall actually spanning horizontally between soldier piles?

Sharon Robertson, P.E.
Arcon Engineers
sharon(--nospam--at)arconengineers.com
Tel: 858-503-7854
Fax: 858-503-7858

-----Original Message-----
From: Joe Grill [mailto:jgrill(--nospam--at)swiaz.com] 
Sent: Friday, March 24, 2006 8:14 AM
To: seaint(--nospam--at)seaint.org
Subject: RE: Joints in retaining walls

How about to reduce differential lateral movement between the two sides
of
the joint?

Joseph R. Grill, P.E. (Structural)
Shephard - Wesnitzer, Inc.
Civil Engineering and Surveying
P.O. Box 3924
Sedona, AZ  86340
PHONE (928) 282-1061
FAX (928) 282-2058
jgrill(--nospam--at)swiaz.com
 


-----Original Message-----
From: Sharon [mailto:sharon(--nospam--at)arconengineers.com] 
Sent: Friday, March 24, 2006 8:50 AM
To: seaint(--nospam--at)seaint.org
Subject: RE: Joints in retaining walls

Since it is a site wall, I agree with Nels, " Why would reinforcing
steel need to cross the control joint?"

Sharon Robertson, P.E.
Arcon Engineers
sharon(--nospam--at)arconengineers.com
Tel: 858-503-7854
Fax: 858-503-7858
-----Original Message-----
From: Alden Manipula [mailto:amanipula(--nospam--at)novagroupinc.net] 
Sent: Friday, March 24, 2006 6:01 AM
To: seaint(--nospam--at)seaint.org
Subject: Re: Joints in retaining walls

This is a site wall.

Sharon wrote:
> Is this a site wall or basement wall?
>
> Sharon Robertson, P.E.
> Arcon Engineers
> sharon(--nospam--at)arconengineers.com
> Tel: 858-503-7854
> Fax: 858-503-7858
>
> -----Original Message-----
> From: Nels Roselund [mailto:njineer(--nospam--at)att.net] 
> Sent: Thursday, March 23, 2006 5:11 PM
> To: seaint(--nospam--at)seaint.org
> Subject: RE: Joints in retaining walls
>
> Alden, Why would reinforcing steel need to cross the control joint?
>
> Nels Roselund, SE
> South San Gabriel, CA
> njineer(--nospam--at)att.net
>
> -----Original Message-----
> From: Alden Manipula [mailto:amanipula(--nospam--at)novagroupinc.net] 
> Sent: Thursday, March 23, 2006 2:51 PM
> To: seaint(--nospam--at)seaint.org
> Subject: Re: Joints in retaining walls
>
> I have another question regarding control joints in a retaining wall.
>
> For a regular wall we would show a V-groove control joint w/ sealant
and
>
> have the reinforcement continuous thru the joint.
>
> For a retaining wall, this detail would would seem to apply, but I'm 
> worried that water would enter once the sealant has deteriorated.  I'm

> proposing a construction joint detail that looks more like an
expansion 
> joint detail in that the reinforcing is stopped 6" short of the joint 
> and epoxy coated dowels are used across the joint. 
>
> Does this seem excessive?  How do others handle the reinforcing thru
the
>
> control joints of a retaining wall?
>
> Thanks.
>   
>
------------------------------------------------------------------------
> --
>
>   
>> Your following message has been delivered to the list
>>  seaint(--nospam--at)seaint.org at 11:04:55 on 21 Mar 2006.
>>
>>     
>
------------------------------------------------------------------------
> --
>
>   
>>
>> For a cantilevered concrete retaining wall I've been told to place 
>> joints in a long retaining wall 20'-0" o.c., maximum, with every 4th 
>> joint to be an expansion joint w/ some sort of compressible fill 
>> material.  This is supposedly a 'rule of thumb' type of
specification.
>>
>> I, however, can not find a documented reference.  Does anyone know 
>> where this originated?
>>
>> Thanks, again.
>>
>> Alden
>>
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