United States Department of Transportation
i
0-6652 : spliced Texas girder bridges.
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2015-02-01
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[PDF-511.96 KB]
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Abstract:Spliced girder technology continues to attract
attention due to its versatility over traditional
prestressed concrete highway bridge construction.
By joining multiple precast concrete girders using
post-tensioning, spliced girder technology
effectively extends the application of low-cost
precast construction to uncharacteristic span
lengths. Although various connection methods
have been devised over the years, the cast-in-place
(CIP) splice region has emerged as the preferred
connection between precast I-girder segments.
Relatively limited data are available in the
literature, however, for large-scale shear tests of
post-tensioned I-girders, and only a few studies
have examined the behavior of the CIP splice
regions of spliced girder bridges.
The goal of this project was to develop a better
understanding of spliced girder behavior. To
accomplish this task, the project was divided into
two phases. The Phase I research was aimed at
evaluating the effect of post-tensioning ducts
contained in the thin webs of spliced I-girders.
Phase II examined the behavior of the CIP splice
regions of spliced I-girders.
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