[en] This paper presents a study performed on the collapse of reinforced concrete columns subjected to natural fire conditions during and after the cooling phase of the fire. The aim is, first, to highlight the phenomenon of collapse of concrete columns during and after the cooling phase of a fire and then, to analyze the influence of some determinant parameters. The main mechanisms that lead to this type of failure are found to be the delayed increase of the temperature in the central zones of the element and the additional loss of concrete strength during the cooling phase of the fire. A parametric study is performed considering different fires and geometric properties of the column. This shows that the most critical situations with respect to delayed failure arise for short fires and for columns with low slenderness or massive sections.
Disciplines :
Civil engineering
Author, co-author :
Dimia, Mohamed Salah; University of Batna
Guenfoud, Mohamed; University of Guelma
Gernay, Thomas ; Université de Liège - ULiège > Département Argenco : Secteur SE > Ingénierie du feu
Franssen, Jean-Marc ; Université de Liège - ULiège > Département Argenco : Secteur SE > Ingénierie du feu
Language :
English
Title :
Collapse of concrete columns during and after the cooling phase of a fire
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Fike, R.S., Kodur, V.K.R., An approach for evaluating the fire resistance of CFHSS columns under design fire scenarios (2009) Journal of Fire Protection Engineering, 19, pp. 229-259
Kirby, B.R., Lapwood, D.G., Thomson, G., (1986) The Reinstatement of Fire Damaged Steel and Iron Framed Structures, , British Steel Corporation, Swinden Laboratories
Li, Y.-H., Franssen, J.-M., Residual compressive strength of concrete after a fire Journal of Structural Fire Engineering, , (accepted for publication)
Hsu, J.-H., Lin, C.-S., Residual bearing capabilities of fire-exposed reinforced concrete beams (2006) International Journal of Applied Science and Engineering, 4 (2), pp. 151-164
Hsu, J.-H., Lin, C.-S., Effect of fire on the residual mechanical properties and structural performance of reinforced concrete beams (2008) Journal of Fire Protection Engineering, 18 (4), pp. 245-274
Wald, F., Kallerova, P., (2009) Draft Summary of Results from Fire Test in Mokrsko 2008, , Prague: Ceska technika
(2004) Seven Swiss Firefighters Die in Collapsed Parking Garage, , http://www.firehouse.com/news/lodd/seven-swiss-firefighters-die- collapsed-parking-garage, Firehouse.com Accessed on 9 September 2011
(2002) Eurocode 1: Actions on Structures-Part 1-2: General Actions-Actions on Structures Exposed to Fire, , EN 1991-1-2 Brussels: CEN
Franssen, J.-M., SAFIR: A thermal/structural program for modeling structures under fire (2005) Engineering Journal-American Institute of Steel Construction Inc., 42 (3), pp. 143-158
(2005) Eurocode 4-Design of Composite Steel and Concrete Structures, , EN 1994-1-2 Part 1-2: General rules-Structural fire design. Brussels: CEN
(2004) Eurocode 2: Design of Concrete Structures-Part 1-2: General Rules-Structural Fire Design, , EN 1992-1-2 Brussels: CEN
Schneider, U., (1985) Properties of Materials at High Temperatures: Concrete, , RILEM, University of Kassel
Yi-Hai, L., Franssen, J.-M., Test results and model for the residual compressive strength of concrete after a fire (2011) Journal of Structural Fire Engineering, 2, pp. 29-44
Felicetti, R., Gambarova, P.G., Silva, M., Vimercati, M., Thermal diffusivity and residual strength of high-performance light-weight concrete exposed to high temperature (2002) 6th International Symposium on Utilization of HSC/HPC, Leipzig, Proc. V2, pp. 935-948
Gernay, T., Franssen, J.-M., A comparison between explicit and implicit modelling of transient creep strain in concrete uniaxial constitutive relationships (2011) Proceedings of the Fire and Materials 2011 Conference, pp. 405-416. , San Francisco
Gernay, T., Effect of transient creep strain model on the behavior of concrete columns subjected to heating and cooling Fire Technology
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.
