Segments for building spliced prestressed concrete girder and method of manufacturing the segments
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United States of America Patent
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Aug 19, 2014
Grant Date -
Mar 12, 2009
app pub date -
Apr 5, 2006
filing date -
Apr 13, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
Provided are segments of a spliced prestressed concrete girder, which have improved structural integrity at joints, and a method of manufacturing the segments. The method of manufacturing the segments, which are combined to build the spliced prestressed concrete girder, includes: manufacturing one or more joint blocks, each having a first end that has a shear key and is to be spliced to an end of an adjacent segment and having a second end that is bonded to a segment body of the segment; and manufacturing the segment body by using the one or more joint blocks as one or more ends of a formwork in which the segment body is to be made and by casting and curing concrete in the formwork, wherein the one or more joint blocks are fixedly bonded to one or more ends of the segment body in the manufacturing of the segment body.
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