Evaluation of the Condition of Prefabricated Pretensioned Prestressed Beam Forming the Load-Bearing Structure of Bridges after About 60 Years of Use
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F24%3A00381997" target="_blank" >RIV/68407700:21610/24:00381997 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/978-981-99-4049-3_60" target="_blank" >http://dx.doi.org/10.1007/978-981-99-4049-3_60</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-981-99-4049-3_60" target="_blank" >10.1007/978-981-99-4049-3_60</a>
Alternative languages
Result language
angličtina
Original language name
Evaluation of the Condition of Prefabricated Pretensioned Prestressed Beam Forming the Load-Bearing Structure of Bridges after About 60 Years of Use
Original language description
The paper summarizes results of diagnostic work on approximately 6 bridges constructed from prestressed standardized precast elements used in the 1960-1990s for the construction of bridges in the Czech Republic. These are mainly the standardized girders of KA type (Type documents for prefabricated girders KA-73, Dopravoprojekt 11/1973, digital copy) for clearances of 9–18 m and I girders (Type documents for prefabricated girders I-73, Dopravoprojekt 11/1973, digital copy) for clearances of 21–30 m. The assessment focused mainly on the actual strength class of concrete in relation to the design strength, visual inspection of the outer face and inner chambers of the girders with the help of videoscopes, and last but not least, checking the condition of the prestressing reinforcement and the state of cable ducts grouting. The condition of the prestressing reinforcement was checked firstly by means of mechanical probes and secondly by means of the half-cell method in the place of visual defects. Results were supplemented by a corrosion survey of the prestressing reinforcement with regard to content of chloride ions in the grout mixture.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
<a href="/en/project/CK02000329" target="_blank" >CK02000329: UHPC as the main load-bearing structure for middle-span bridges</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 5th International Conference on Civil Engineering and Architecture
ISBN
978-981-99-4048-6
ISSN
2366-2557
e-ISSN
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Number of pages
10
Pages from-to
785-794
Publisher name
Springer Nature
Place of publication
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Event location
Hanoi
Event date
Dec 16, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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