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Re: SEISMIC DESIGN to UBC'97

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Greetings,

According to a study " Earthquakes and Seismic Zones in The Middle East ".
Kuwait is located in Zone 1, moreover there is no history of seismic
activity in that area. My experience is mainly in a nearby country the
United Arab Emirates. Regarding spacing of expansion joints, local
authorities there usually do not encourage spacings greater than 50 meters,
due to the high seasonal tempertaure variation which may reach 30-35 degrees
celcius.
However I reached a spacing of 70 meters for a 22 storey r.c. rectangular
building. Authorities there accepted that but requested the submittal of
calculations. The usual expansion joint thickness adopted in that region is
20-25 mm.

Regards,

Hasan Hindawi
----- Original Message -----
From: Mark Gilligan <MarkKGilligan(--nospam--at)compuserve.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Wednesday, 01 September, 1999 4:34 PM
Subject: SEISMIC DESIGN to UBC'97


>
> <<Could anyone offer advice on seismic design of a 10 storey rc building
in
> Kuwait to UBC'97, particularly the following:
>
> 1. Thermal expansion joints / movement joints.
>
> The floor plan area of the building (approx 4000m^2) is such that several
> expansion joint are required. The UBC does not cover joints specifically
> but reading between the lines I assume that either joints should be
avoided
> or they should wide enough to avoid pounding of one part of the building
> against the other eg. double columns with wide gap or wide corbels say. Is
> correct?>>
>
> What is your criteria for deciding how many expansion joints are needed?
> If the building is square this building would be 64m long.  130m between
> joints is not unknown.
>
>
> Mark Gilligan
>
>