Detail publikace

LONG-TERM DEFLECTIONS OF CANTILEVER SEGMENTAL BRIDGES

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"
}