The behaviour of reinforced concrete slabs in fire
Source abstract
Abstract
In this paper a robust model is presented based on the previous layer procedure developed by the author to also take into account the effects of concrete spalling on the behaviour of concrete slabs under fire conditions. In this study, a detailed analysis of a uniformly loaded reinforced concrete slab subject to different degrees of concrete spalling under a standard fire regime is first carried out. Further, a series of analysis of floor slabs with different degrees of concrete spalling is also performed on a generic reinforced concrete building. A total of 16 cases have been analysed using different degrees of spalling on the slabs, with different extents and positions of localised fire compartments. It is clear that adjacent cool structures provide considerable thermal restraint to the floor slabs within the fire compartment. And it is evident that the compressive membrane force within the slabs is a major player in reducing the impact of concrete spalling on the structural behaviour of floor slabs in fire. (C) 2010 Elsevier Ltd. All rights reserved.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fire effects on concrete materials · Structural Response to Dynamic Loads · Fire dynamics and safety research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (21)
Show source-provided references
1. EN 1992-1-2, Eurocode 2, Design of Concrete Structures, Part 1.2: General Rules—Structural Fire Design, Commission of the European Communities, Brussels, 2004.
2. Explosive spalling of high-strength concrete columns in fire10.1680/macr.2001.53.3.197 ↗
3. Holistic behaviour of concrete buildings in fire10.1680/stbu.2002.152.3.199 ↗
4. Modelling membrane action of concrete slabs in composite buildings in fire. Part I: theoretical development10.1061/(ASCE)0733-9445(2003)129:8(1093) ↗
5. Modelling membrane action of concrete slabs in composite buildings in fire. Part II: validations10.1061/(ASCE)0733-9445(2003)129:8(1103) ↗
6. Modelling of heated composite floor slabs with reference to cardington experiments10.1016/S0379-7112(01)00038-8 ↗
7. Numerical modelling of two-way reinforced concrete slabs in fire10.1016/j.engstruct.2004.03.009 ↗
8. Y. Anderberg, Spalling phenomena of HPC and OC, NIST Special Publication 919, National Institute of Standards and Technology, Maryland, 1997, pp. 69–73.
9. Z.P. Bazant, et al., Analysis of pore pressure, thermal stress and fracture in rapidly heated concrete, in: Proceedings of International Workshop on Fire Performance of High-Strength Concrete, NIST Special Publication 919, National Institute of Standards and Technology, Maryland, 1997, pp. 155–164.
10. Modelling of heated concrete10.1680/macr.2002.54.2.77 ↗
11. Finite element analysis of coupled heat and moisture transfer in concrete subjected to fire10.1080/10407780152032839 ↗
12. Finite element analysis of coupled heat and mass transfer in concrete when it is in a fire10.1680/macr.2001.53.2.117 ↗
13. R.T. Tenchev, J.A. Purkiss, L.Y. Li, Numerical analysis of thermal spalling in concrete column, in: Proceedings of the 9th National Congress on Theoretical and Applied Mechanics, 19–22 September 2001, pp. 19–22.
14. A numerical approach for modeling the fire induced restraint effects in reinforced concrete beams10.1016/j.firesaf.2007.08.003 ↗
15. Three-dimensional analysis of reinforced concrete beam-column structures in fire10.1061/(ASCE)0733-9445(2009)135:10(1201) ↗
16. Predicting the fire resistance behavior of high strength concrete columns10.1016/S0958-9465(03)00089-1 ↗
17. International Organisation for Standardisation, ISO 834: Fire Resistance Tests—Elements of Building Construction, 1985.
18. EN 1992-1-1, Eurocode 2, Design of Concrete Structures, Part 1.1: General Rules and Rules for Buildings, Commission of the European Communities, Brussels, 2004.
19. Z. Huang, I.W. Burgess, R.J. Plank, A non-linear beam-column element for 3D modelling of general cross-sections in fire, Research Report DCSE/03/F/1, Department of Civil & Structural Engineering, University of Sheffield, 2003.
20. Nonlinear analysis of reinforced concrete slabs subjected to fire
21. Non-linear finite element model to predict temperature histories within reinforced concrete in fires10.1016/0360-1323(95)00041-0 ↗