Bridges – Deck
Reexamination Certificate
2005-06-14
2005-06-14
Pezzuto, Robert E. (Department: 3671)
Bridges
Deck
C248S188200, C404S070000
Reexamination Certificate
active
06904636
ABSTRACT:
A technique and apparatus for integrally connecting a precast or prefabricated deck to a girder. A connection structure and method for connecting a precast or prefabricated deck to a girder, makes it unnecessary to form shear pockets in the deck and to remove existing shear connectors already installed to the girder, and makes it possible to easily adjust an elevation of the deck and to obtain excellent structural integration between the girder and the deck. The connection structure includes at least one rod shaped elevation adjustor inserted through the deck to support the deck spaced apart from an upper surface of the girder at a predetermined interval. A length of the rod shaped elevation adjustor projected toward an upper face of the girder can be changed to allow the deck to be supported. At least one shear connector is inserted through the deck. A lower portion of the shear connector extends toward the upper surface of the girder, and an upper portion of the shear connector is fastened by at least one fastener. When the deck is supported at a predetermined elevation spaced apart from the upper surface of the girder by the elevation adjustor after the deck is placed on the girder, a filler material is filled in a space between the girder and the deck to encase the lower portions of the elevation adjustor and the shear connector. The fastener is fastened to the shear connector so as to press the deck downward.
REFERENCES:
patent: 5311629 (1994-05-01), Smith
patent: 5617599 (1997-04-01), Smith
patent: 5802652 (1998-09-01), Smith
patent: 5867854 (1999-02-01), Matteo et al.
patent: 5901396 (1999-05-01), Ahlskog et al.
patent: 5987680 (1999-11-01), Sakaya
patent: 6073293 (2000-06-01), Ahlskog et al.
patent: 6317915 (2001-11-01), Grearson
Hwang Yoon-Koog
Kim Hyeong-Yeol
Kim Sun-Myung
Lee Young-Ho
Park Ki-Tae
Dickstein , Shapiro, Morin & Oshinsky, LLP
Korea Institute of Construction Technology
Pechhold Alexandra K.
Pezzuto Robert E.
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