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Structural Engineering and Mechanics
  Volume 58, Number 5, June10 2016, pages 757-781
DOI: http://dx.doi.org/10.12989/sem.2016.58.5.757
 


Analysis of a damaged industrial hall subjected to the effects of fire
Stanislav Kmet, Michal Tomko, Ivo Demjan, Ladislav Pesekc and Sergej Priganc

 
Abstract
    The results of diagnostics and analysis of an industrial hall located on the premises of a thermal power plant severely damaged by fire are presented in the paper. The comprehensive failure-related diagnostics, non-destructive and destructive tests of steel and concrete materials, geodetic surveying of selected structural members, numerical modelling, static analysis and reliability assessment were focused on two basic goals: The determination of the current technical condition of the load bearing structure and the assessment of its post fire resistance as well as assessing the degree of damage and subsequent design of reconstruction measures and arrangements which would enable the safe and reliable use of the building. The current mechanical properties of the steel material obtained from the tests and measured geometric characteristics of the structural members with imperfections were employed in finite element models to study the post-fire behaviour of the structure. In order to compare the behaviour of the numerically modelled steel roof truss, subjected to the effects of fire, with the real post-fire response of the damaged structure theoretically obtained resistance, critical temperature and the time at which the structure no longer meets the required reliability criteria under its given loading are compared with real values. A very good agreement between the simulated results and real characteristics of the structure after the fire was observed.
 
Key Words
    damaged industrial hall; fire effects; failure diagnostics; non-destructive and destructive tests; geodetic surveying; finite element analysis; reliability assessment; fire resistance check
 
Address
Stanislav Kmet, Michal Tomko, Ivo Demjan, Sergej Priganc: Institute of Structural Engineering, Faculty of Civil Engineering, Technical University of Kosice, Vysokoskolska 4, Kosice, Slovakia
Ladislav Pesekc: Department of Material Science, Faculty of Metallurgy, Technical University of Kosice, Park Komenskeho 11, Kosice, Slovakia
 

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