Stability and strength of stainless steel stayed columns with one and two crossarms

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00323230" target="_blank" >RIV/68407700:21110/18:00323230 - isvavai.cz</a>

Výsledek na webu

<a href="http://ictws2018.ist.utl.pt/index.html" target="_blank" >http://ictws2018.ist.utl.pt/index.html</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Stability and strength of stainless steel stayed columns with one and two crossarms

Popis výsledku v původním jazyce

Prestressed steel stayed columns are studied with respect to their practical use. In current fashionable structures the demand for very slender columns produced of stainless steel is increasing, leading frequently to the prestressed stayed tube elements. This paper covers stability and strength nonlinear behavior of stayed tube columns made of austenitic steels, prestressed through four ties over one central or two crossarms located at thirds of the column length. Due to the prestressing both stability values and maximal loadings require to be analyzed using GMNIA (geometrically and materially nonlinear analysis with imperfections), following the sudden change of energy after vanishing of pretension in some ties. Special attention is devoted to the fitting of ties at the crossarms, where fixed or sliding conditions are possible. Large numerical studies deal with various values and modes of the central column initial deflections, friction between ties and crossarm saddles and increasing stability or maximal loadings after adding another (second) crossarm to the stayed assembly. Finally some practical recommendations are suggested.

Název v anglickém jazyce

Stability and strength of stainless steel stayed columns with one and two crossarms

Popis výsledku anglicky

Prestressed steel stayed columns are studied with respect to their practical use. In current fashionable structures the demand for very slender columns produced of stainless steel is increasing, leading frequently to the prestressed stayed tube elements. This paper covers stability and strength nonlinear behavior of stayed tube columns made of austenitic steels, prestressed through four ties over one central or two crossarms located at thirds of the column length. Due to the prestressing both stability values and maximal loadings require to be analyzed using GMNIA (geometrically and materially nonlinear analysis with imperfections), following the sudden change of energy after vanishing of pretension in some ties. Special attention is devoted to the fitting of ties at the crossarms, where fixed or sliding conditions are possible. Large numerical studies deal with various values and modes of the central column initial deflections, friction between ties and crossarm saddles and increasing stability or maximal loadings after adding another (second) crossarm to the stayed assembly. Finally some practical recommendations are suggested.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA17-24769S" target="_blank" >GA17-24769S: Nelineární stabilita a pevnost štíhlých konstrukcí s nelineárními materiálovými vlastnostmi.</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

C - Předmět řešení projektu podléhá obchodnímu tajemství (§ 504 Občanského zákoníku), ale název projektu, cíle projektu a u ukončeného nebo zastaveného projektu zhodnocení výsledku řešení projektu (údaje P03, P04, P15, P19, P29, PN8) dodané do CEP, jsou upraveny tak, aby byly zveřejnitelné.

Název statě ve sborníku

International Conference on Thin-Walled Structures 2018

ISBN

978-989-20-8665-1

ISSN

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e-ISSN

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Počet stran výsledku

12

Strana od-do

1-12

Název nakladatele

Instituto Superior Técnico, Technical University of Lisbon

Místo vydání

Lisbon

Místo konání akce

Lisbon

Datum konání akce

24. 7. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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