Title:
Effect of Post-Tensioning on Tolerances
Author(s):
Bruce A. Suprenant and Ward R. Malisch
Publication:
Concrete International
Volume:
31
Issue:
1
Appears on pages(s):
58-65
Keywords:
post-tensioned concrete; prestressed concrete; responsibility; tolerance
DOI:
Date:
1/1/2009
Abstract:
One consequence of post-tensioning is movement of the building frame as the slab and beams shorten. The magnitude of the movement depends on such factors as the structural design, the geometry of the building, and the location of openings, walls, columns, and perimeter elements. Because these movements occur days after the members have been placed, some interesting questions are raised regarding who is responsible if these movements cause a structure originally built within tolerances to fall outside the tolerance envelope.