Buckling and collapse capacity of prestressed steel tube 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%3A00323236" target="_blank" >RIV/68407700:21110/18:00323236 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.tws.2018.07.045" target="_blank" >https://doi.org/10.1016/j.tws.2018.07.045</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tws.2018.07.045" target="_blank" >10.1016/j.tws.2018.07.045</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Buckling and collapse capacity of prestressed steel tube stayed columns with one and two crossarms

Popis výsledku v původním jazyce

Prestressed tube stayed columns with one and two crossarms are investigated. The analyses are performed using SCIA Engineer software and ANSYS package and validated by tests of four stayed columns. First, the investigations concern the ideal (perfect) columns and cover linear buckling analyses (LBA) and geometrically nonlinear analyses (GNIA) to obtain critical loads and buckling modes under various prestressing levels. Second, the collapse loadings of the imperfect columns with initial deflections required by Eurocode EN 1993-1-1 are analysed with respect to relevant initial deflection modes and material behaviour (elastic for mild steel, nonlinear for stainless steel). All the analyses are performed for geometrical characteristics of the tested columns and the results concerning both the column with one or two crossarms are set against each other to assess the respective effectivity. In addition, the geometrical analysis of the prestressed ideal column with two crossarms and respective formulas concerning optimal prestressing and maximal critical loading are presented. Finally some recommendations for practical use are suggested.

Název v anglickém jazyce

Buckling and collapse capacity of prestressed steel tube stayed columns with one and two crossarms

Popis výsledku anglicky

Prestressed tube stayed columns with one and two crossarms are investigated. The analyses are performed using SCIA Engineer software and ANSYS package and validated by tests of four stayed columns. First, the investigations concern the ideal (perfect) columns and cover linear buckling analyses (LBA) and geometrically nonlinear analyses (GNIA) to obtain critical loads and buckling modes under various prestressing levels. Second, the collapse loadings of the imperfect columns with initial deflections required by Eurocode EN 1993-1-1 are analysed with respect to relevant initial deflection modes and material behaviour (elastic for mild steel, nonlinear for stainless steel). All the analyses are performed for geometrical characteristics of the tested columns and the results concerning both the column with one or two crossarms are set against each other to assess the respective effectivity. In addition, the geometrical analysis of the prestressed ideal column with two crossarms and respective formulas concerning optimal prestressing and maximal critical loading are presented. Finally some recommendations for practical use are suggested.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

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

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

Název periodika

Thin-Walled Structures

ISSN

0263-8231

e-ISSN

1879-3223

Svazek periodika

132

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

58-68

Kód UT WoS článku

000449569000006

EID výsledku v databázi Scopus

2-s2.0-85051808312