Fire Behaviour of Concrete Columns with Restrained Thermal Elongation

1 Department of Civil Engineering, Faculty of Sciences and Technology, University of Coimbra, Portugal

Journal of Structural Fire Engineering

ISSN: 2040-2317

Publication date: 27 December 2011

Abstract

This paper presents the results of an experimental and numerical study to clarify the influence of the surrounding building structure in the fire behaviour of reinforced concrete columns with restrained thermal elongation. The parameters studied were: the longitudinal reinforcement ratio, the slenderness of the column and the stiffness of the surrounding structure to the column in fire. The experimental study was complemented by a numerical study carried out using the finite element program SAFIR. Simplified calculation methods proposed in EN1992-1-2 were also used to evaluate the fire resistance of the tested columns. From the application of the 500°C isotherm method, proposed in EN1992-1-2, it can be noticed that this method led to smaller values of the fire resistance than those obtained in the experimental tests. The tabulated data method A, proposed in EN1992-1-2, proved to be very conservative.

Citation

Martins, A. and Rodrigues, J. (2011), "Fire Behaviour of Concrete Columns with Restrained Thermal Elongation", Journal of Structural Fire Engineering, Vol. 2 No. 4, pp. 319-332. https://doi.org/10.1260/2040-2317.2.4.319

Download as .RIS

Publisher

:

Emerald Group Publishing Limited

Please note you might not have access to this content

You may be able to access this content by login via Shibboleth, Open Athens or with your Emerald account.
If you would like to contact us about accessing this content, click the button and fill out the form.
To rent this content from Deepdyve, please click the button.