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RE: Long Building - How to make stand up?

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Not to mention expansion/contraction.


You may want to put an EJ or two in the building, which creates its own set of additional

Lateral complications, of course.




David L. Fisher SE PE

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Cape Cod Grand Cayman Holdings Ltd. - Cayman

Fisher+Partners Structural Engineers Ltd. - Cayman

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From: Josh Comfort [mailto:jcomfort(--nospam--at)]
Sent: Tuesday, September 05, 2006 1:46 PM
To: seaint(--nospam--at)
Subject: RE: Long Building - How to make stand up?


Before going to the trouble of adding a lateral system across the front, I'd check the deflection of a diaphragm cantilevered off of the back wall to see if it is within an acceptable limit for supporting masonry.


You might need to add an intermediate shear element to break up the 320' diaphragm span.  That 50' depth will create a lot of deflection.


-----Original Message-----
From: David Smith [mailto:smith1129(--nospam--at)]
Sent: Tuesday, September 05, 2006 11:25 AM
To: seaint(--nospam--at)
Subject: Long Building - How to make stand up?

I have an architect's proposed plan for a strip shopping center 320' long by 50' wide.

The two short sides and one long side will be masonry bearing walls.  The other long side will be store-front.

It appears to be too long for typical diaphragm type construction.  Short of going to moment frames every 25 ft or so, are there any suggestions for making this building stable?


Dave Smith

Smith Associates

Gainesville, GA