Prediction of the thermal spalling risk of concrete structures during fire by means of a finite element model

F. Pesavento; B. A. Schrefler; D. Gawin; J. Principe

Prediction of the thermal spalling risk of concrete structures during fire by means of a finite element model

F. Pesavento, B. A. Schrefler, D. Gawin, J. Principe

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A very characteristic mode of concrete damage at high temperature, especially for the materials characterized by a low intrinsic permeability, is the so called thermal spalling. In this work a mathematical model, which considers concrete as multiphase porous material, is applied to defining some spalling indexes based on various collapse mechanisms. A validation of the quantities proposed, carried out by means of a comparison with some experimental test results, is presented together with an integrated application of the model to the case of fire in tunnels. The latter calculation is solved by coupling the model for concrete with a CFD model for the simulation of fire evolution.

Original language	English (US)
Title of host publication	Proceedings of the 6th International Conference on Engineering Computational Technology
State	Published - Dec 1 2008
Event	6th International Conference on Engineering Computational Technology, ECT 2008 - Athens, Greece Duration: Sep 2 2008 → Sep 5 2008

Other

Other	6th International Conference on Engineering Computational Technology, ECT 2008
Country/Territory	Greece
City	Athens
Period	9/2/08 → 9/5/08

Keywords

Concrete structures
FE simulations
Integrated modelling
Thermal spalling
Tunnel fire

ASJC Scopus subject areas

Computer Science(all)

Cite this

@inproceedings{abf630ef8a6c4aa99f48f6ac51a3a690,

title = "Prediction of the thermal spalling risk of concrete structures during fire by means of a finite element model",

abstract = "A very characteristic mode of concrete damage at high temperature, especially for the materials characterized by a low intrinsic permeability, is the so called thermal spalling. In this work a mathematical model, which considers concrete as multiphase porous material, is applied to defining some spalling indexes based on various collapse mechanisms. A validation of the quantities proposed, carried out by means of a comparison with some experimental test results, is presented together with an integrated application of the model to the case of fire in tunnels. The latter calculation is solved by coupling the model for concrete with a CFD model for the simulation of fire evolution.",

keywords = "Concrete structures, FE simulations, Integrated modelling, Thermal spalling, Tunnel fire",

author = "F. Pesavento and Schrefler, {B. A.} and D. Gawin and J. Principe",

year = "2008",

month = dec,

day = "1",

language = "English (US)",

isbn = "9781905088249",

booktitle = "Proceedings of the 6th International Conference on Engineering Computational Technology",

note = "6th International Conference on Engineering Computational Technology, ECT 2008 ; Conference date: 02-09-2008 Through 05-09-2008",

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TY - GEN

T1 - Prediction of the thermal spalling risk of concrete structures during fire by means of a finite element model

AU - Pesavento, F.

AU - Schrefler, B. A.

AU - Gawin, D.

AU - Principe, J.

PY - 2008/12/1

Y1 - 2008/12/1

N2 - A very characteristic mode of concrete damage at high temperature, especially for the materials characterized by a low intrinsic permeability, is the so called thermal spalling. In this work a mathematical model, which considers concrete as multiphase porous material, is applied to defining some spalling indexes based on various collapse mechanisms. A validation of the quantities proposed, carried out by means of a comparison with some experimental test results, is presented together with an integrated application of the model to the case of fire in tunnels. The latter calculation is solved by coupling the model for concrete with a CFD model for the simulation of fire evolution.

AB - A very characteristic mode of concrete damage at high temperature, especially for the materials characterized by a low intrinsic permeability, is the so called thermal spalling. In this work a mathematical model, which considers concrete as multiphase porous material, is applied to defining some spalling indexes based on various collapse mechanisms. A validation of the quantities proposed, carried out by means of a comparison with some experimental test results, is presented together with an integrated application of the model to the case of fire in tunnels. The latter calculation is solved by coupling the model for concrete with a CFD model for the simulation of fire evolution.

KW - Concrete structures

KW - FE simulations

KW - Integrated modelling

KW - Thermal spalling

KW - Tunnel fire

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M3 - Conference contribution

AN - SCOPUS:84858419849

SN - 9781905088249

BT - Proceedings of the 6th International Conference on Engineering Computational Technology

T2 - 6th International Conference on Engineering Computational Technology, ECT 2008

Y2 - 2 September 2008 through 5 September 2008

ER -

Prediction of the thermal spalling risk of concrete structures during fire by means of a finite element model

Abstract

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Keywords

ASJC Scopus subject areas

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