Experimental and numerical analysis of concrete slab prestressed with composite reinforcement

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Experimental and numerical analysis of concrete slab prestressed with composite reinforcement

Popis výsledku v původním jazyce

Behaviour of concrete slabs prestressed with glass fibre reinforced polymer (GFRP) composite bars is investigated in this paper. The main advantage of GFRP bars is their high strength/self-weight ratio. On the other hand Young's modulus is very low compared to steel reinforcement which is the main cause for unacceptable deflections. To eliminate such deflections and to utilize high tensile strength of GFRP bars it is very useful to pretension the bars. During the experimental work a set of three concrete slabs 4.5 m long was casted. Each slab was prestressed with four GFRP bars. The slabs were subjected to four points bending. Each specimen was subjected to ten tow-load cycles and afterwards loaded until failure. Deflection under each loading point andin the middle of the beam span was recorded. Moreover stress at the lower and upper surface was measured. The experimental procedure was modelled numerically in finite element nonlinear software.

Název v anglickém jazyce

Experimental and numerical analysis of concrete slab prestressed with composite reinforcement

Popis výsledku anglicky

Behaviour of concrete slabs prestressed with glass fibre reinforced polymer (GFRP) composite bars is investigated in this paper. The main advantage of GFRP bars is their high strength/self-weight ratio. On the other hand Young's modulus is very low compared to steel reinforcement which is the main cause for unacceptable deflections. To eliminate such deflections and to utilize high tensile strength of GFRP bars it is very useful to pretension the bars. During the experimental work a set of three concrete slabs 4.5 m long was casted. Each slab was prestressed with four GFRP bars. The slabs were subjected to four points bending. Each specimen was subjected to ten tow-load cycles and afterwards loaded until failure. Deflection under each loading point andin the middle of the beam span was recorded. Moreover stress at the lower and upper surface was measured. The experimental procedure was modelled numerically in finite element nonlinear software.

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název statě ve sborníku

Fourteenth International Conference on Computational Methods and Experimental Measurements, Algarve, Portugal

ISBN

978-1-84564-187-0

ISSN

1746-4064

e-ISSN

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Počet stran výsledku

12

Strana od-do

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Název nakladatele

WIT PRESS

Místo vydání

Wessex

Místo konání akce

Algarve

Datum konání akce

10. 6. 2009

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000269259300008