THE STEEL AND FIBRE-REINFORCED CONCRETE CIRCULAR HOLLOW SECTION COMPOSITE COLUMN EXPOSED TO FIRE
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00317260" target="_blank" >RIV/68407700:21110/17:00317260 - isvavai.cz</a>
Result on the web
<a href="http://www.eurosteel2017.dk/" target="_blank" >http://www.eurosteel2017.dk/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/cepa.317" target="_blank" >10.1002/cepa.317</a>
Alternative languages
Result language
angličtina
Original language name
THE STEEL AND FIBRE-REINFORCED CONCRETE CIRCULAR HOLLOW SECTION COMPOSITE COLUMN EXPOSED TO FIRE
Original language description
The recent development in technology of production and transport of the steel fibre-reinforced concrete enables its utilization in composite steel-concrete structures. This work is focused on development of mechanical behaviour and design model of circular hollow section (CHS) composite steel and fibre-concrete (SFRC) column at elevated temperature. Research includes two levels accuracy/complexity, allowing simplified or advanced approach to design following the coming changes in European standard for composite member design in fire (EN1994-1-2:2005) [1]. Experimental studies of the project include mechanical tests of heated fibre-concrete samples in tension and compression, thermal behaviour under uniform and non-uniform loading of stubs of CHS and tests of full scale SFRC CHS columns in steady-state and transient-state regimes. Developing advanced finite element method (FEM) simulation of global mechanical behaviour of SFRC CHS columns is a multi-levelled composite mechanical and thermo-model and provide numerous numerical experiments. Together with standard steel material model in fire, FEM model of mechanical behaviour of fibre-reinforce concrete at elevated temperature is prepared. Validated simplified and advanced thermal model of SFRC CHS at elevated temperature gives temperature fields and moisture distribution inside section which depends on direction, heat flux, sizes and gives possibility to model different fire cases of full-scale columns in bending and buckling at elevated temperature. Prepared analytical and simplified FEM mechanical model of column is taking in account degradation of mechanical properties, analytical models of transfer of heat inside column section and provides simplified solutions for designers.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/GA15-19073S" target="_blank" >GA15-19073S: Models of steel and fibre concrete composite columns exposed to fire</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Eurosteel 2017
ISBN
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ISSN
2509-7075
e-ISSN
2509-7075
Number of pages
10
Pages from-to
2678-2687
Publisher name
Ernst & Sohn
Place of publication
Berlin
Event location
Copenhagen
Event date
Sep 13, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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