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NAVRÁTIL, J. ZICH, M.
Originální název
LONG-TERM DEFLECTIONS OF CANTILEVER SEGMENTAL BRIDGES
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
The long-term deflections of cast-in-place segmental bridges constructed using the cantilever method are often larger than the deflections expected in the design. A detailed structural analysis and monitoring of these types of bridges has therefore become a matter of interest. The paper gives a comprehensive analysis of phenomena that can conspire to cause long-span prestressed concrete bridges to deflect more than predicted. The analysis is based on a parametric study and long-term monitoring of the behaviour of a Motorway Bridge across the Vltava River in the Czech Republic. To reveal and quantify possible reasons for excessive bridge deflections, a detailed time-dependent analysis was carried out. The results of the study were compared with in-situ measurements that have been regularly carried out since the very early stage of construction. Theoretical values of the increments of deflections, prestressing forces and concrete strains were compared with the measurements.
Klíčová slova
prestressed bridges, concrete bridges, long-term deflections, long – term behaviour, time-dependent analysis, creep, shrinkage
Autoři
NAVRÁTIL, J.; ZICH, M.
Rok RIV
2013
Vydáno
13. 9. 2013
Nakladatel
TU Tallinn
Místo
Vilnius Litevská republika
ISSN
1822-427X
Periodikum
Baltic Journal of Road and Bridge Engineering
Ročník
8
Číslo
3
Stát
Lotyšská republika
Strany od
190
Strany do
195
Strany počet
6
BibTex
@article{BUT75446, author="Jaroslav {Navrátil} and Miloš {Zich}", title="LONG-TERM DEFLECTIONS OF CANTILEVER SEGMENTAL BRIDGES", journal="Baltic Journal of Road and Bridge Engineering", year="2013", volume="8", number="3", pages="190--195", issn="1822-427X" }