Static structures (e.g. – buildings) – With component having discrete prestressing means – Beam – girder – or truss construction
Reexamination Certificate
2006-09-12
2006-09-12
Slack, Naoko (Department: 3635)
Static structures (e.g., buildings)
With component having discrete prestressing means
Beam, girder, or truss construction
C052S223140
Reexamination Certificate
active
07104017
ABSTRACT:
Outer cables disposed in a box girder in the longitudinal direction of a box girder bridge to prestress the box girder each have a transparent sheath made of a transparent polyethylene resin, vinyl chloride resin, polypropylene resin or the like, thereby allowing the grouting condition in the sheath to be inspected reliably and easily. If a colored grout is filled, the filling condition can be inspected even more reliably and easily. In addition, it is possible to readily find a portion left unfilled after the grout has hardened and to refill it for repairing by using openings for injection and ejection made at each side of the void left.
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Kadotani Tsutomu
Minami Toshikazu
Nishida Yoshitaka
Takagaki Takashi
Terada Norio
Anderson Technology Corporation
Berger/ABAM Engineers, Inc.
Hastreiter Roberta L.
Lord, Bissell & Brook LLP
Nguyen Chi Q.
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