CONCRETE AND RELIABILITY OF EXISTING PRESTRESSED BRIDGE STRUCTURES

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F24%3A00376933" target="_blank" >RIV/68407700:21610/24:00376933 - isvavai.cz</a>
Result on the web
<a href="https://ojs.cvut.cz/ojs/index.php/APP/article/view/9861" target="_blank" >https://ojs.cvut.cz/ojs/index.php/APP/article/view/9861</a>
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
CONCRETE AND RELIABILITY OF EXISTING PRESTRESSED BRIDGE STRUCTURES
Original language description
A large number of post-tensioned concrete bridges were built in the second half of the last century. They have often been insufficiently maintained during their lifetime (usually around 50 years). Nowadays, these structures exhibit significant deterioration, mainly due to leakages and also due to various other deficiencies such as a small concrete cover. Their load-bearing capacity needs to be verified. This paper focuses on estimating the load-bearing capacity calculation of existing post-tensioned concrete bridges. In the engineering practice, this is carried out using the partial factor method according to the currently valid standards (Czech standards ČSN and the Eurocodes), which often impose more stringent requirements than the original standards. The partial factor method then often leads to low load-bearing capacities. This study deals with the bridge for which a very low load-bearing capacity has been determined. For this reason, a comparative probabilistic analysis was performed, allowing for a better description of the uncertainties in the resistance and load effect variables. The probabilistic approach appears to be less conservative and yields a higher load-bearing capacity.
Czech name
—
Czech description
—

Project
<a href="/en/project/GA23-06222S" target="_blank" >GA23-06222S: Stochastic Interaction of Climatic Actions in Structural Reliability</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)