Long-term Behavior of Prestressed Bridge After Reconstruction & Strengthening by P-T

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F22%3APU144889" target="_blank" >RIV/00216305:26110/22:PU144889 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Long-term Behavior of Prestressed Bridge After Reconstruction & Strengthening by P-T

Popis výsledku v původním jazyce

The paper presents the reconstruction process of a single-track railway bridge with five spans, put into operation in 1961 on the Czech railway line. The reconstruction was realized in 2009. The original superstructure from precast post-tensioned beams was reinforced by composite slab-shaped channel with a continuous gravel ballast. Due to the increase of self-weight and the requirement for strengthening the structure for the effect of modern rail traffic loading, the structure was reinforced by free additional prestressing cables. Long-term monitoring of the structure has been carried out over a period of ten years to verify the project's assumptions in terms of service life and to demonstrate the suitability of the technology for the rehabilitation of similar prestressed bridges that were used quite extensively in the Czech Republic in the 1960s and 1970s. The second part of the paper also deals with the issues related to the evaluation of long-term monitoring of concrete bridges after reconstructio

Název v anglickém jazyce

Long-term Behavior of Prestressed Bridge After Reconstruction & Strengthening by P-T

Popis výsledku anglicky

The paper presents the reconstruction process of a single-track railway bridge with five spans, put into operation in 1961 on the Czech railway line. The reconstruction was realized in 2009. The original superstructure from precast post-tensioned beams was reinforced by composite slab-shaped channel with a continuous gravel ballast. Due to the increase of self-weight and the requirement for strengthening the structure for the effect of modern rail traffic loading, the structure was reinforced by free additional prestressing cables. Long-term monitoring of the structure has been carried out over a period of ten years to verify the project's assumptions in terms of service life and to demonstrate the suitability of the technology for the rehabilitation of similar prestressed bridges that were used quite extensively in the Czech Republic in the 1960s and 1970s. The second part of the paper also deals with the issues related to the evaluation of long-term monitoring of concrete bridges after reconstructio

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/CK01000042" target="_blank" >CK01000042: Upřesnění zbytkové únosnosti předpjatých mostů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů