Title:
Rehabilitating Parking Structures with Corrosion-Damaged Button-Headed Post-Tensioning Tendons
Author(s):
Thomas E. Nehil
Publication:
Concrete International
Volume:
13
Issue:
10
Appears on pages(s):
66-73
Keywords:
concrete slabs; deterioration; evaluation; parking facilities; post-tensioning; reinforcing steels; repairs; Construction
DOI:
Date:
10/1/1991
Abstract:
Reviews rehabilitation concepts, evaluation methods, and strategies for performing options analysis and selecting the restoration option for rehabilitating deteriorated parking structures built using unbonded button-headed post-tensioning tendons. The lack of a preformed duct through the concrete (as provided in monostrand post-tensioning) and the fact that very little bonded conventional reinforcement was used in the unbonded button-headed post-tensioning system makes restoration of these structures necessarily different from that of other types of post-tensioned structures.