Feature of fire resistance calculation of steel structures with intumescent coating

Vasilchenko, Alexey; Otrosh, Yurii; Adamenko, N. I.; Doronin, Evgeny; Kovalov, Andrii

doi:10.1051/matecconf/201823002036

Cited by 24 publications

(28 citation statements)

References 2 publications

(1 reference statement)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the recommendations lack data on the methods of estimation evaluation of steel beams with corrugated walls and the correctness of the use of conventional approaches. This can also be traced by the results reported in work [6].…”

Section: Introductionsupporting

confidence: 60%

“…Along with the experimental method of fire tests, the use of estimation methods has become common in order to assess the fire resistance of steel beams [5]. The main recommendations for the application of this approach are contained in the regulatory documents of the United Europe, for example in [6]. The advantages of those methods include sufficient flexibility, the ability to take into consideration the entire variety of steel grades, from which the studied beams are made, various geometric sizes of structures, and various types of fireproof materials.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…At the same time, in work [12], which reports a study into such beams with fire protection cladding for fire resistance, the practical aspect of the estimation fire resistance assessment is insufficiently disclosed, taking into consideration the determining of belonging to the designated fire resistance class. Effective practical approaches are used in work [16] but they have no reference to normalized methods for calculating steel structures for fire resistance [6]. In addition, those works do not cover the results of studying the fire of steel beams with a corrugated wall using fire protection and without it with a follow-up comparison of results.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Based on a normalized approach, work [6] recommended a procedure to tackle the mechanical problem of design when assessing fire resistance under the influence of the standard temperature of fire on a beam with a flat wall. However, in the case of beams with a corrugated wall, this procedure can produce unpredictable results.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…However, in the case of beams with a corrugated wall, this procedure can produce unpredictable results. The mathematical model for solving the mechanical problem given in paper [6], based on standards recommendations, considers changes in the mechanical properties of steel when the temperature changes. At the same time, the state of failure of the beam is predicted by comparing the change in its resistance under the influence of temperature and active load.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 4 more Smart Citations

Thermal effect of a fire on a steel beam with corrugated wall with fireproof mineral-wool cladding

Nekora

Sidnei

Shnal

et al. 2021

EEJET

View full text Add to dashboard Cite

This paper reports a study into the possibility of applying a simplified approach, recommended by standards for conventional steel beams, to determine the heating temperature under the conditions of a fire in relation to steel I-beams with a corrugated wall. The research is predetermined by the limitation of methods that make it possible to determine the heating temperature of this type of beam in a fire using engineering methods with a small amount of calculations. Technical data on steel beams with cladding have been considered for calculation, the features of heat impact of fire on them have been analyzed, a calculation procedure has been devised, the estimation schemes have been built, and the calculations have been performed. Data on the temperature distribution in the cross-sections of beams with and without cladding were obtained by using a simplified method recommended by standards and the refined method based on a finite-element method. Mathematical models have been constructed for calculations that describe the effect of a standard temperature regime of fire on the distribution of temperature in each minute in the cross-sections of steel beams with and without cladding. The models have been described on the basis of the differential equation of thermal conductivity, boundary conditions of the third kind, which take into consideration convective and radiant heat transfer. It was established that the mineral wool cladding of the beam with a corrugated wall is a reliable fire protection agent. The heating temperature of the beam does not reach a critical value of 500 °C in 60 minutes, which provides the class of this beam with the most stringent requirements for its fire resistance in accordance with the classification in line with the acting norms in Ukraine. The simplified method, recommended by the current standards of the European Union and Ukraine, could be effectively used to analyze the fire resistance of these beams and is the basis of the procedure for the estimated assessment of the fire resistance of these structures

show abstract

Section: Introductionsupporting

confidence: 60%

Section: Literature Review and Problem Statementmentioning

confidence: 99%