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- To: seaint(--nospam--at)seaint.org
- Subject: diffential settlement- Reply
- From: Brian Kehoe <BEK(--nospam--at)wje.com>
- Date: Tue, 22 Sep 1998 23:28:10 -0500
As far as I know, there are no performance criteria for settlement of slabs on grade for tilt-up construction. There have been some criteria developed for settlement (slope) of slabs on grade for residential construction. These may not be applicable because they deal with damage to gypsum wallboard walls due to the slope of the floor. There are flatness and levelness ratings (f-numbers) that are applied for new construction, but I would not use these to evaluate a 26 year old structure. The only real criteria for evaluating slabs on grade is functionality. If the slope causes a problem with how the building is being used, then the slope is not acceptable. Original message: Does any one have any advice or recommendations on where to look for guidelines/parameters for acceptable differential settlement of a slab-on- grade? A manometer survey will be performed on a slab-on-grade of an existing tilt-up building that was built approximately in 1972. I'd like to gather some additional literature on the subject. I thought there was a string of messages recently regarding this subject but was unable to access it in the SEAOC archive.
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