Optimization on Closure Scheme of Multi-Span Prestressed Concrete Box-Girder Bridge

Abstract:

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The stress state of finished bridge and service stage is influenced by various closure schemes in cantilever construction of multi-span prestressed concrete box-girder bridge. Two typical bridges—multi-span prestressed concrete continuous rigid frame bridge and girder bridge are investigated, The stress state in different closure schemes are analyzed using finite element(FE) analysis. Meanwhile, compared the healthy monitoring data, it has been found that taking the closure sequence from side span to middle span in cantilever construction of multi-span prestressed concrete box-girder bridge can lower stress of girder and pier in finished bridge stage, as well as reducing deformation of girder in service stage. Hence, the closure sequence from side span to middle span is more suitable for cantilever construction of multi-span prestressed concrete box-girder bridge.

Info:

Periodical:

Advanced Materials Research (Volumes 163-167)

Edited by:

Lijuan Li

Pages:

2369-2375

DOI:

10.4028/www.scientific.net/AMR.163-167.2369

Citation:

M. Yuan and D. H. Yan, "Optimization on Closure Scheme of Multi-Span Prestressed Concrete Box-Girder Bridge", Advanced Materials Research, Vols. 163-167, pp. 2369-2375, 2011

Online since:

December 2010

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Price:

$35.00

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