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Re: Concrete - concrete friction.

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Ditto Here.

But friction is ignored for seismic forces if you are in zone 2 or higher.

Masroor
Karachi, Pakistan.
----- Original Message ----- 
From: "Arvind Salecha" <arvindsalecha(--nospam--at)yahoo.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Wednesday, April 19, 2006 9:49 PM
Subject: Re: Concrete - concrete friction.


> Hi Jim,
> We normally use a concrete-concrete friction
> coefficient of 0.5 in design.
> 
> Regards,
> Arvind Salecha
> Bridge Engineer,
> India.
> 
> From: "Jim Getaz" <jgetaz(--nospam--at)shockeyprecast.com>
> To: <seaint(--nospam--at)seaint.org>
> 
> This is a multi-part message in MIME format.
> 
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> Content-Type: text/plain;
> charset="us-ascii"
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> 
>             Don DeVore wrote, "If a precast wall panel
> is bearing upon
> an adjacent one, one of the factors for resisting
> horizontal 
> displacment
> would be the friction between the surfaces. Surely
> this would be
> proportional to the weight on the bearing. I'm trying
> to get a picture
> of the total resistance to wind load based upon
> mechanical fasteners 
> and
> the horizontal bearing surfaces. Any ideas?"
> 
> 
> 
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