Analysing of the fireproof tiles work under high temperature exposure to fence structures
Students Name: Chymbur Bohdan Leonidovych
Qualification Level: magister
Speciality: Civil Safety
Institute: Institute of Civil Engineering and Building Systems
Mode of Study: part
Academic Year: 2020-2021 н.р.
Language of Defence: ukrainian
Abstract: Chymbur B.L., Bula S.S. (supervisor). Analysis of fireproof plate’s behaviour under high temperature exposing to fence structures. Master’s thesis. – Lviv Polytechnic National University, Lviv, 2020. Extended abstract. The number of fires increasing causes the great interest to problems of fire protection of load-bearing and enclosing structures produced with of plate-shape materials. There are still many unresolved issues in the field of fire effects on buildings and their elements. Various fireproof methods are investigated experimentally and theoretically and it was concluded that fireproof plates could be valuable solution for general structures` fire resistance. Given the above, we can say that the development and improvement of computational and experimental methods for determining the fire protection of plate materials is relevant. The first section considers the main types of fireproof plates materials used for fire protection of load-bearing structures. The existing works of scientists who conducted research in this direction are considered. The second section presents the methodology of experimental research, describes the methodology of experimental research and numerical modeling. In the third section the analysis of the received results is carried out, namely: temperature distribution in the samples bodies, their comparison, fixing of time of destruction under the high-temperature influence. Also, the algorithm of numerical calculation by means of modern software complexes is resulted. In the fourth section the economic comparison of the arrangement of partitions for two variants of fireproof plate materials exposed to the fire was performed in the software complex AVK 5. Study object: fireproof plates under conditions of high temperatures. Scope of research: fire protection by means of plate materials. Goal of research: To study the fire-retardant properties of enclosing structures, namely plate materials. In this master work the analysis of work of fire-retardant plates made of plaster and magnesite under the influence of high-temperature loading is executed. Experimental studies were conducted at the National University "Lviv Polytechnic" in the educational and scientific laboratory using a fire furnace for testing building structures (patent № 93911). As a result of research, the analysis of existing on the market plate fire retardant materials based on gypsum and magnesite was carried out. A method of studying fragments of building systems with covering of plate materials on the temperature effect of fire and load was proposed. The correspondence of the obtained results is confirmed by a satisfactory convergence of experimental and theoretical studies. According to the results of research, valuable data were obtained: the time to loss of heat insulation capacity and the overall integrity of such structures. Key words: temperature, plate materials, fire protection, enclosing constructions. References. 1. DBN B. 1.1.7-2002 Fire safety of construction objects. –Kyiv: Derzhbud Ukrainy, 2003. - 42p. 2. Shnal TM Fire resistance and fire protection of metal structures / TM Shnal. - Lviv: Lviv Polytechnic, 2001. - 176 p. 3. DSTU-H EN 1991-1-2: 2010 (Eurocode 1. Actions on structures - Part 1-2: General actions - Actions on structures during fire) with technical amendment EN 1991-1-2: 2002 / AC: 2009 corresponds to EN 1991-1-2: 2002 Eurocode 1: Actions on structures - Part 1-2: General actions - Actions on structures exposed to fire. 4. Polovko AP Experimental studies of the limit of fire resistance of sandwich panels with fire protection from magnesite plates / A.P Polovko, T.Y Rak, O.O. Vasylenko // Fire safety: a collection of scientific papers. Lviv, 2012. - №21 - P. 134-139. 5. Veselivsky R.B Experimental study of fire resistance of enclosing structures protected by plasterboard / R.B Veselivsky. Veselivsky, R.S Yakovchuk, О.О. Vasylenko, P.V. Semenyuk // Fire safety: a collection of scientific papers. Lviv, 2015. - №27. - P. 26-32.