Analysis of Support Zones of Reinforced Concrete Beam During Construction Using Strut-And-Tie Model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F10%3A00176617" target="_blank" >RIV/68407700:21110/10:00176617 - 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

Analysis of Support Zones of Reinforced Concrete Beam During Construction Using Strut-And-Tie Model

Popis výsledku v původním jazyce

In building construction process a fast formwork dismantling is a very significant issue. There is always a purpose to reuse the formwork or to apply a load to the structure from the adjacent elements. In this study a way to predict the earliest time forformwork stripping is presented. Considering early age concrete, most of the final strength will be achieved after a relatively short time, though some further strength gain can occur according to the type of cement and admixtures. Therefore, the function of evolution of microstructure was used to define time-dependent gain of concrete stiffness. In the example of a dapped-end single span beam a strut-and-tie model was created to be further used to analyze the support regions. As the result, taking into account only elastic behaviour of concrete, no excessive deformations were found. Nevertheless, it was decided that an additional calculation including the creep effect is required.

Název v anglickém jazyce

Analysis of Support Zones of Reinforced Concrete Beam During Construction Using Strut-And-Tie Model

Popis výsledku anglicky

In building construction process a fast formwork dismantling is a very significant issue. There is always a purpose to reuse the formwork or to apply a load to the structure from the adjacent elements. In this study a way to predict the earliest time forformwork stripping is presented. Considering early age concrete, most of the final strength will be achieved after a relatively short time, though some further strength gain can occur according to the type of cement and admixtures. Therefore, the function of evolution of microstructure was used to define time-dependent gain of concrete stiffness. In the example of a dapped-end single span beam a strut-and-tie model was created to be further used to analyze the support regions. As the result, taking into account only elastic behaviour of concrete, no excessive deformations were found. Nevertheless, it was decided that an additional calculation including the creep effect is required.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F08%2F1372" target="_blank" >GA103/08/1372: Modelování mechanické odezvy tvrdnoucího betonu</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the International Conference on Modelling and Simulation 2010 in Prague

ISBN

978-80-01-04574-9

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

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Název nakladatele

Czech Technical University

Místo vydání

Prague

Místo konání akce

Praha

Datum konání akce

22. 6. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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