Title:
Field Application of Composite Post-Tensioning System
Author(s):
Nabil Grace, Mena Bebawy, and Kenichi Ushijima
Publication:
Concrete International
Volume:
36
Issue:
11
Appears on pages(s):
39-42
Keywords:
precast, prestressed, anchorage, monitoring
DOI:
Date:
11/1/2014
Abstract:
Adjacent precast prestressed concrete box beams are used for bridge superstructures. Joints between these box beams are often grouted and transverse post-tensioning is applied. The authors of the article developed design standards for transverse post-tensioning of box beams using unbonded carbon-fiber composite cables (CFCC) for the Michigan Department of Transportation. They also assisted in construction of two box beam bridges with transverse ties comprising large-diameter CFCC. The article presents details of these projects.