Innovative design of precast/prestressed girder bridge superstructures using ultra high performance concrete

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ConferenceAnnual Conference of the Transportation Association of Canada: 21 September 2008, Toronto, Ontario
Pages112; # of pages: 12
Subjectultra-high performance concrete, precast/prestressed bridge girder, finite element method, limit states design, structural performance; Bridges; High performance / High strength concrete
AbstractThis paper shows that the use of UHPC in precast/prestressed concrete girders enables asignificant increase in the bridge span of the slab-on-girders bridge when compared toconventional HPC bridge girders. UHPC yields a considerable reduction in the number of girdersand girder size when compared to HPC bridge of the same span length, and hence results in asignificant cut of concrete volume from 49 % to 65 %. On the other hand, the study shows thatthe reduction of the girder spacing yields a high increase of the span length of the UHPC-bridge,while less improvement is observed for the HPC bridge. Four UHPC girders represent the bestchoice for the minimum CPCI girder size, which are able to support the maximum feasibleprecast girder length.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number50458
NPARC number20377991
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Record identifiera390ee4e-ff14-4ac6-9ef7-9f7baa932154
Record created2012-07-24
Record modified2016-05-09
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