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Numerical modelling of behaviour of reinforced concrete columns in fire and comparison with Eurocode 2
ID Bratina, Sebastjan (Author), ID Čas, Bojan (Author), ID Saje, Miran (Author), ID Planinc, Igor (Author)

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PID: 20.500.12556/rul/06b98542-984d-47fb-acf7-42f862056461

Abstract
The paper describes a two-step finite element formulation for the thermo-mechanical non-linear analysis of the behaviour of the reinforced concrete columns in fire. In the first step, the distributions of the temperature over the cross-section during fire are determined. In the next step, the mechanical analysis is made in which these distributions are used as the temperature loads. The analysis employs our new strain-based planar geometrically exact and materially non-linear beam finite elements to model the column. The results are compared with the measurements of the full-scale test on columns in fire and with the results of the European building code EC 2. The resistance times of the present method and the test were close. It is also noted that the building code EC 2 might be non-conservative in the estimation of the resistance time. (c) 2005 Elsevier Ltd. All rights reserved.

Language:English
Keywords:fire resistance, finite element method, reinforced concrete column, thermal strain, creep strain, transient strain, Eurocode 2
Typology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Publisher:Elsevier
Year:2005
Number of pages:Str. 5715-5733
Numbering:Letn. 42, št. 21-22
PID:20.500.12556/RUL-32157 This link opens in a new window
UDC:006(4):614.84:624.012.45:624.075.2
ISSN on article:0020-7683
DOI:10.1016/j.ijsolstr.2005.03.015 This link opens in a new window
COBISS.SI-ID:2813793 This link opens in a new window
Publication date in RUL:10.07.2015
Views:2900
Downloads:1050
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Record is a part of a journal

Title:International journal of solids and structures
Shortened title:Int. j. solids struct.
Publisher:Elsevier
ISSN:0020-7683
COBISS.SI-ID:997903 This link opens in a new window

Secondary language

Language:English
Keywords:požarna odpornost, metoda končnih elementov, armiranobetonski stebri, temperaturna deformacija, lezenje, prehodna deformacija, Eurocode 2

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