STATIC AND DYNAMIC LOAD TESTS OF LIBEN BRIDGE OVER VLTAVA RIVER IN PRAGUE AND CONCEPT OF REPAIR

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F21%3A00365767" target="_blank" >RIV/68407700:21610/21:00365767 - 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

STATIC AND DYNAMIC LOAD TESTS OF LIBEN BRIDGE OVER VLTAVA RIVER IN PRAGUE AND CONCEPT OF REPAIR

Popis výsledku v původním jazyce

The Liben bridge in Prague is a cultural and technical heritage of concrete construction of the beginning from the twentieth century. The bridge was designed by architect Pavel Janak, the founder of cubism in architecture. According to experts, the Libel)" bridge is the only example of cubist morphology application on the bridge structure. Evaluation of Liben bridge structural condition is an up-to-date topic leading to decision whether this bridge should be repaired or replaced by a new bridge. This article deals with the static and dynamic load testing in comparison with following creation and validation of the FEA model for load carrying capacity assessment of the Liben Bridge and possible way of reconstruction. Paper deals with crucial procedures for FEA model validation of this backfilled arched concrete structure with a focus on the static characteristic of the structure. Article deals with reconstruction of the vault part of the Liben Bridge using R-UHPFRC in terms of static operation. It focuses on the two basic problems of the bridge, the solution to increase the bearing capacity of the vault arches and to increase the bearing capacity of the foundations under pillars. The concept of repair is based on extensive diagnostic surveys conducted in 2017 The concept of structural enhancement is based on adding new thin layer of R-UHPFRC (reinforced, ultra-high performance concrete) on the upper vault surface. Concrete bridge structures are exposed to extreme effects of aggressive environmental influences, especially chlorides, which leads to damaging of most exposed bridge components a long time before their service life. UHPFRC material is suitable for repairs of these structures and especially due to its impermeability and high resistance.

Název v anglickém jazyce

STATIC AND DYNAMIC LOAD TESTS OF LIBEN BRIDGE OVER VLTAVA RIVER IN PRAGUE AND CONCEPT OF REPAIR

Popis výsledku anglicky

The Liben bridge in Prague is a cultural and technical heritage of concrete construction of the beginning from the twentieth century. The bridge was designed by architect Pavel Janak, the founder of cubism in architecture. According to experts, the Libel)" bridge is the only example of cubist morphology application on the bridge structure. Evaluation of Liben bridge structural condition is an up-to-date topic leading to decision whether this bridge should be repaired or replaced by a new bridge. This article deals with the static and dynamic load testing in comparison with following creation and validation of the FEA model for load carrying capacity assessment of the Liben Bridge and possible way of reconstruction. Paper deals with crucial procedures for FEA model validation of this backfilled arched concrete structure with a focus on the static characteristic of the structure. Article deals with reconstruction of the vault part of the Liben Bridge using R-UHPFRC in terms of static operation. It focuses on the two basic problems of the bridge, the solution to increase the bearing capacity of the vault arches and to increase the bearing capacity of the foundations under pillars. The concept of repair is based on extensive diagnostic surveys conducted in 2017 The concept of structural enhancement is based on adding new thin layer of R-UHPFRC (reinforced, ultra-high performance concrete) on the upper vault surface. Concrete bridge structures are exposed to extreme effects of aggressive environmental influences, especially chlorides, which leads to damaging of most exposed bridge components a long time before their service life. UHPFRC material is suitable for repairs of these structures and especially due to its impermeability and high resistance.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/GA17-22796S" target="_blank" >GA17-22796S: Experimentální a numerická analýza soudržnosti kovové výztuže s ultra vysokohodnotným betonem (UHPC) za vysokých teplot</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

12th International Conference on Structural Analysis of Historical Constructions (SAHC 2021)

ISBN

978-84-123222-0-0

ISSN

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e-ISSN

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Počet stran výsledku

12

Strana od-do

1303-1314

Název nakladatele

International Center for Numerical Methods in Engineering (CIMNE)

Místo vydání

Barcelona

Místo konání akce

online/Barcelona

Datum konání akce

29. 9. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000856026401044