Buckling resistance of concrete-filled steel circular tube columns composed of high-strength materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F15%3APU116537" target="_blank" >RIV/00216305:26110/15:PU116537 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26110/15:PU119882

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Buckling resistance of concrete-filled steel circular tube columns composed of high-strength materials

Popis výsledku v původním jazyce

The paper deals with the problems of the buckling compression of steel-concrete composite columns. The analysis of load-carrying capacity is oriented to the experimental verification and theoretical studies of the buckling resistance, especially with regards to the usage of high-strength concrete. Within the framework of this research the following basic steel-concrete columns with different cross-section configuration have been investigated: concrete-filled steel circular tubes with the diameter in the range from 133mmto 168mm and thickness from 4mm to 5 mm. The buckling length of investigated columns was 3 m respecting the typical usual length used in building structures, for example. Material of investigated columns has been chosen as follows: steel gradewas either S 235, or S 355; concrete strength classwas in the range from C 20/25 up to C 80/90.Within the experimental research, steel tubes filled by concrete and steel tubes without concrete subjected to buckling compression force have been tested.A total of 45 test specimens have been verified: so far 27 of them have been tested and completely evaluated, another 18 specimens have been tested recently and are evaluated currently. Besides influence of high-strength materials (mainly concrete), the theoretical analysis alsowas oriented to actual imperfections and their influence on the buckling resistance.Within the experimental investigation, among others the material tests and their evaluation, as well as the measurement of actual geometrical imperfections, have been performed to verify the theoretical results obtained from theoretical studies.

Název v anglickém jazyce

Buckling resistance of concrete-filled steel circular tube columns composed of high-strength materials

Popis výsledku anglicky

The paper deals with the problems of the buckling compression of steel-concrete composite columns. The analysis of load-carrying capacity is oriented to the experimental verification and theoretical studies of the buckling resistance, especially with regards to the usage of high-strength concrete. Within the framework of this research the following basic steel-concrete columns with different cross-section configuration have been investigated: concrete-filled steel circular tubes with the diameter in the range from 133mmto 168mm and thickness from 4mm to 5 mm. The buckling length of investigated columns was 3 m respecting the typical usual length used in building structures, for example. Material of investigated columns has been chosen as follows: steel gradewas either S 235, or S 355; concrete strength classwas in the range from C 20/25 up to C 80/90.Within the experimental research, steel tubes filled by concrete and steel tubes without concrete subjected to buckling compression force have been tested.A total of 45 test specimens have been verified: so far 27 of them have been tested and completely evaluated, another 18 specimens have been tested recently and are evaluated currently. Besides influence of high-strength materials (mainly concrete), the theoretical analysis alsowas oriented to actual imperfections and their influence on the buckling resistance.Within the experimental investigation, among others the material tests and their evaluation, as well as the measurement of actual geometrical imperfections, have been performed to verify the theoretical results obtained from theoretical studies.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

<a href="/cs/project/LO1408" target="_blank" >LO1408: AdMaS UP - Pokročilé stavební materiály, konstrukce a technologie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

Procedings of the 15th International Symposium on Tubular Structures XV

ISBN

978-1-138-02837-1

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

131-137

Název nakladatele

CRC Press/Balkema, Taylor&Francis Group

Místo vydání

London

Místo konání akce

Rio de Janeiro

Datum konání akce

27. 5. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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