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RE: CMU Stair/Elevator Shaft

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Jim:

If one or more of the stair walls is an exterior wall or if the floor to floor dimension is unusually high, you may need to use a thicker wall. I generally tie the walls to each floor level.

Jim K.

-----Original Message-----
From: Jim Wilson [mailto:wilsonengineers(--nospam--at)yahoo.com]
Sent: Monday, July 11, 2005 9:09 AM
To: seaint(--nospam--at)seaint.org
Subject: CMU Stair/Elevator Shaft


Just curious, is there any reason why a CMU stairway
inside a steel building would have to be or should be
any greater than 8" thick?  Fire rating is not an
issue and the block theoretically leans on the steel
for lateral loads.  The building is only 3 stories
tall.

Jim Wilson, PE
Stroudsburg, PA

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