Optimization of Pretensioned Steel Fibre Reinforced Concrete Beam

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00232003" target="_blank" >RIV/68407700:21110/15:00232003 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.1106.94" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/AMR.1106.94</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.1106.94" target="_blank" >10.4028/www.scientific.net/AMR.1106.94</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimization of Pretensioned Steel Fibre Reinforced Concrete Beam

Popis výsledku v původním jazyce

Precast concrete beams are used as a main load bearing member for composite deck beam bridges with a simple span to 30 m. The advantage of prefabricated construction technology of beams for small span deck beam bridges is quick installation, savings of temporary scaffolding and formwork. The amount of labour with formwork, reinforcement and concrete including work with scaffolding on site is reduced at a minimum. During searching applications of steel fiber reinforced concrete (SFRC) suitable for this kind of structure a precast beam suitable for a bridge with simple spans from 12 to 15 m has been chosen for the investigation. Three types of beam were manufactured for experimental tests. The beams were supposed to be a part of a bridge with a composite deck. They were made of SFRC. In case of the experimental tests, a cast-in place concrete layer from plain concrete was cast on the top of the beams. The cast-in place concrete layer simulated a top composite deck. The bearing capacity of the beams with the cast-in place concrete layer was tested until their collapse. The tested beams showed the higher bearing capacity than it was determined by a numerical calculation. The beams also demonstrated high safety against collapse during structure overloading. The process of the experimental testing was also simulated on a numerical nonlinear model and then the results were compared. The comparison of the both types of tests did not show any significant irregularities.

Název v anglickém jazyce

Optimization of Pretensioned Steel Fibre Reinforced Concrete Beam

Popis výsledku anglicky

Precast concrete beams are used as a main load bearing member for composite deck beam bridges with a simple span to 30 m. The advantage of prefabricated construction technology of beams for small span deck beam bridges is quick installation, savings of temporary scaffolding and formwork. The amount of labour with formwork, reinforcement and concrete including work with scaffolding on site is reduced at a minimum. During searching applications of steel fiber reinforced concrete (SFRC) suitable for this kind of structure a precast beam suitable for a bridge with simple spans from 12 to 15 m has been chosen for the investigation. Three types of beam were manufactured for experimental tests. The beams were supposed to be a part of a bridge with a composite deck. They were made of SFRC. In case of the experimental tests, a cast-in place concrete layer from plain concrete was cast on the top of the beams. The cast-in place concrete layer simulated a top composite deck. The bearing capacity of the beams with the cast-in place concrete layer was tested until their collapse. The tested beams showed the higher bearing capacity than it was determined by a numerical calculation. The beams also demonstrated high safety against collapse during structure overloading. The process of the experimental testing was also simulated on a numerical nonlinear model and then the results were compared. The comparison of the both types of tests did not show any significant irregularities.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/FR-TI2%2F496" target="_blank" >FR-TI2/496: Progresivní vláknobetonové stavební prvky a konstrukce</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings from 21st Czech Concrete Day 2014

ISBN

978-3-03835-474-1

ISSN

1022-6680

e-ISSN

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Počet stran výsledku

4

Strana od-do

94-97

Název nakladatele

Trans Tech Publications Ltd.

Místo vydání

Pfaffikon

Místo konání akce

Hradec Králové

Datum konání akce

26. 11. 2014

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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