Mots-clé
(Anglais)
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Steel; strain rate; material constitutive law; fire; temperature; tension; dynamic loading; blast; rebar; high strength structural steel
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Programme de recherche
(Anglais)
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COST-Action TU0904 - Integrated Fire Engineering and Response
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Description succincte
(Anglais)
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The building performance under combined effects of impact, explosion, and fire is growing in interest of the research and engineering communities specially after the recent terrorist attacks as well as severe accidents (i.e. Gotthard tunnel, etc.). The mechanical behaviour of structural steels when are subjected to extreme temperatures, impacts or blast has still many aspects open to investigation. Scanty and relatively old data are available on the behavior under fire of reinforcing steel or structural steels and information about the combination of high strain rate and temperature are practically absent. Thus, additional information on the strain rate and high-temperature behavior of recently-introduced or proposed reinforcement types (like B500A, B500B, stainless-steel bars) and high-strength structural steels (like S690, S890, S960) is needed. This project intend to provide new experimental data on the influence of the structural steel in a wide range of strain rate and temperature. The tests will be carried out by means of special research infrastructures avalaible at SUPSI and at ETH Zurich laboratories (as Modified Hopkinson Bar, Hydro-pneumatic machine, special set-up for high temperature). The results will be used to implement constitutive relationships able to describe the material behaviour under combined effects of impact, explosion, and fire.
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Autres indications
(Anglais)
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Full name of research-institution/enterprise: SUPSI DynaMat - Laboratorio interdipartimentale Campus Trevano
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Partenaires et organisations internationales
(Anglais)
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AT; BE; CZ; FI; FR; DE; EL; HU; IS; IT; MT; PL; PT; RO; SK; ES; SE; CH; UK; MK
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Résumé des résultats (Abstract)
(Anglais)
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The building performance under combined effects of impact, explosion, and fire is growing in interest of the research and engineering communities specially after the recent terrorist attacks as well as severe accidents (i.e. Gotthard tunnel, etc.). The mechanical behaviour of structural steels when are subjected to extreme temperatures, impacts or blast has still many aspects open to investigation. Scanty and relatively old data are available on the behavior under fire of reinforcing steel or structural steels and information about the combination of high strain rate and temperature are practically absent. Thus, additional information on the strain rate and high-temperature behavior of recently-introduced or proposed reinforcement types (like B500A, B500B, stainless-steel bars) and high-strength structural steels (like S690, S890, S960) is needed. This project intended to provide new experimental data on the influence of the structural steel in a wide range of strain rate and temperature. The tests were carried out by means of special research infrastructures avalaible at SUPSI and at ETH Zurich laboratories (as Modified Hopkinson Bar, Hydro-pneumatic machine, special set-up for high temperature). The results are used to implement constitutive relationships able to describe the material behaviour under combined effects of impact, explosion, and fire.
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Références bases de données
(Anglais)
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Swiss Database: COST-DB of the State Secretariat for Education and Research Hallwylstrasse 4 CH-3003 Berne, Switzerland Tel. +41 31 322 74 82 Swiss Project-Number: C12.0051
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