Monitoring of existing long span bridges – results, numerical simulation, mathematical models for long term prediction

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00327277" target="_blank" >RIV/68407700:21110/18:00327277 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Monitoring of existing long span bridges – results, numerical simulation, mathematical models for long term prediction
Original language description
Apart from durability, the most important factor in the whole life design of reinforced and, in particular, prestressed concrete bridges, is the Service Limit State. From this point of view, prestressed concrete bridges are very sensitive to long-term increase of deflections. A survey of many bridges monitored in various countries showed that all of them have experienced similar deflection histories. The intention of the paper is to describe methods and mathematical models which should be used for reliable prediction of long-term behaviour of prestressed concrete bridges. The comparisons between results of numerical simulations and measurement data will be also mentioned. Long-term structure deformations (deflections and rotations) and stress distribution are extremelysensitive due to prestressing losses, because the final value is a difference of great numbers (the effectof dead load and the opposite effect of equivalent loading due to prestressing, which depends on the real and actual value of prestressing force in each point of the structure). The goal of the paper is also description of mathematical models for prestressing losses affected by steel relaxation and concrete creep.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Fib Congres 2018, Better - Smarter - Stronger (Full papers)
ISBN
978-1-877040-14-6
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
3298-3305
Publisher name
fib - fédération internationale du béton
Place of publication
Lausanne
Event location
Melbourne
Event date
Oct 7, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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