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Crack in Wall Connected to Post-tensioned Slab

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The project is a 5 story hotel in Laguna Beach, under construction. As the
tendons were being tensioned in the slab, cracks started appearing in some
of the supporting walls. The direction of the tensioning was parallel to the
wall. The cracks are diagonal starting at the point where the
post-tensioning begins downs to the ground. The width of the crack varies
from about 1/8 inch at the top down to almost nothing at the ground. The
crack occurs on both sides of the wall. The walls are 8 inches thick and
designed to act as shear walls as well.

I would appreciate any comments from a similar experience.


Sincerely,


Issam Shahrouri, PE, CBO
Senior Plan Check Engineer
City of Laguna Beach


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