Numerical Analysis of Prestressed UHPC Lightened Member

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00320569" target="_blank" >RIV/68407700:21110/18:00320569 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.272.172" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/SSP.272.172</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.272.172" target="_blank" >10.4028/www.scientific.net/SSP.272.172</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical Analysis of Prestressed UHPC Lightened Member

Popis výsledku v původním jazyce

UHPC (ultra-high-performance concrete) is one of the essential elements in the development and research of new modern concrete structures. It is a material showing all the positive qualities in terms of the design efficiency and construction process. In this paper, we analyze the behavior of prestressed UHPC I-beam with lightened web that is loaded by four-point bending test. Two variants of I-beam were used for the analysis. The first variant is beam with a continuous thin web and the second variant is beam with lightened web, which is analogous to castellated steel I-profiles, commonly used types of steel beams with larger span. Although these are relatively small specimens, light beam analysis can be extrapolated for large span structures, especially bridges. In case of structures of larger magnitude with precast members of UHPC, a certain amount of discontinuous action cannot be avoided, which is the case of using a lightened beam with openings across the entire height of the web. Application of prestressed tendons ensures sufficient resistance for bending action; members are designed so failure occurs by shear response. In this paper are presented conclusions of the numerical analysis performed in software Atena 2D, which analyze both variations of the specimen. These analyses serve as the basis for comparison with data obtained by experimental verification lightened I-beam and I-beam with continuous web.

Název v anglickém jazyce

Numerical Analysis of Prestressed UHPC Lightened Member

Popis výsledku anglicky

UHPC (ultra-high-performance concrete) is one of the essential elements in the development and research of new modern concrete structures. It is a material showing all the positive qualities in terms of the design efficiency and construction process. In this paper, we analyze the behavior of prestressed UHPC I-beam with lightened web that is loaded by four-point bending test. Two variants of I-beam were used for the analysis. The first variant is beam with a continuous thin web and the second variant is beam with lightened web, which is analogous to castellated steel I-profiles, commonly used types of steel beams with larger span. Although these are relatively small specimens, light beam analysis can be extrapolated for large span structures, especially bridges. In case of structures of larger magnitude with precast members of UHPC, a certain amount of discontinuous action cannot be avoided, which is the case of using a lightened beam with openings across the entire height of the web. Application of prestressed tendons ensures sufficient resistance for bending action; members are designed so failure occurs by shear response. In this paper are presented conclusions of the numerical analysis performed in software Atena 2D, which analyze both variations of the specimen. These analyses serve as the basis for comparison with data obtained by experimental verification lightened I-beam and I-beam with continuous web.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

24th Concrete Days 2017

ISBN

978-3-0357-1284-1

ISSN

1012-0394

e-ISSN

1662-9779

Počet stran výsledku

6

Strana od-do

172-177

Název nakladatele

Trans Tech Publications

Místo vydání

Curich

Místo konání akce

Litomyšl

Datum konání akce

22. 11. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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