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# Re: Concrete - concrete friction.

• To: <seaint(--nospam--at)seaint.org>
• Subject: Re: Concrete - concrete friction.
• From: "Syed A Masroor" <masroor(--nospam--at)eaworld.com>
• Date: Thu, 20 Apr 2006 17:13:56 +0500

```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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>
>             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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