Zesilování podporových styčníků ocelových mostů

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00359219" target="_blank" >RIV/68407700:21110/22:00359219 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

čeština

Název v původním jazyce

Zesilování podporových styčníků ocelových mostů

Popis výsledku v původním jazyce

Degradation by electrochemical corrosion is one of the main problems of historical steel bridges, especially for the bridges with truss beams. Corrosion in bearing area of truss beam bridges usually leads to replacement of the whole bearing joint (classical solution). Therefore, it is proposed new method, which is using Ultra-High Performance Fiber Reinforced Concrete and its advantages to strengthen bearing joints of historical steel bridges with truss beams. The effective shear connection is necessary for proper strengthening. Materials of old historical steel bridges are usually not suitable for welding, therefore a new method of shear connection was proposed. This paper aims at results of pilot push-out tests and introduces the layout of subsequent push-out tests, which will be more detailed, and results will be compare with numerical FEM models.

Název v anglickém jazyce

Strengthening of bearing joints of steel bridges

Popis výsledku anglicky

Degradation by electrochemical corrosion is one of the main problems of historical steel bridges, especially for the bridges with truss beams. Corrosion in bearing area of truss beam bridges usually leads to replacement of the whole bearing joint (classical solution). Therefore, it is proposed new method, which is using Ultra-High Performance Fiber Reinforced Concrete and its advantages to strengthen bearing joints of historical steel bridges with truss beams. The effective shear connection is necessary for proper strengthening. Materials of old historical steel bridges are usually not suitable for welding, therefore a new method of shear connection was proposed. This paper aims at results of pilot push-out tests and introduces the layout of subsequent push-out tests, which will be more detailed, and results will be compare with numerical FEM models.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2022

Kód důvěrnosti údajů

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