Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) на платформе Web of Science


  • BUILDING STRUCTURES, BUILDINGS AND FACILITIES
  • Methodology for Calculating the Fire Resistance Limits of Steel Structures Based on Test
  • UDC 624.014.2:614.841.3
    doi:10.33622/0869-7019.2026.07.50-57
    Leonid V. PAN1, lv.pan@severstal.com
    Nikolay N. STOLIAROV2, nn.stoliarov@severstal.com
    1 Severstal Management, prospekt Leningradskiy, 72, korp. 2, BC "Alkon", Moscow 125315, Russian Federation
    2 Severstal Management, ul. Professora Popova, 37v, St. Petersburg 197136, Russian Federation
    Abstract. The article presents a method for determining the fire resistance limits of light steel thin-walled structures based on their field tests. Examples of performing fire tests of structural systems of the Spider 2.0 frame (girders, columns, trusses) are given. Based on the data obtained, tables of coefficients for reducing the yield strength of steel for each type of structure have been formed. The use of test results for design is shown. The cases of determining fire resistance limits for different frame elements are considered. Examples of calculating the fire resistance limits of light steel thin-walled structures are given based on the proposed methodology, which generally allows calculating the fire resistance limits of any structures made of ferrous metal and light steel structures. The test results and the new methodology make it possible to further substantiate the required fire resistance limits of the designed lightweight structures without applying fire protection.
    Keywords: light steel thin-walled structures, fire tests, methods for determining fire resistance limits, structural frame system, coefficient of reduction of yield strength of steel
  • REFERENCES
    1. Stolyarov N. N. Analysis of the stress-strain state of LSTCS during fire tests. Stroitel'naya mekhanika i raschet sooruzheniy, 2025, no. 6, pp. 27-32. (In Russ.). doi: 10.37538/0039-2383.2025.6.27.32
    2. Pan L. V., Stolyarov N. N. Promising areas of ensuring fire resistance limits in the design of steel structures. Promyshlennoe i grazhdanskoe stroitel'stvo, 2026, no. 5, pp. 33-42. (In Russ.). doi: 10.33622/0869-7019.2026.05.33-42
    3. Vatin N., Sinelnikov A., Garifullin M., Trubina D. Simulation of cold-formed steel beams in global and distortional buckling [Моделирование холоднодеформированных стальных балок при глобальном и деформационном выпучивании]. Appl. Mech. Mater., 2014, no. 633-634, pp. 1037-1041.
    4. Gravit M., Dmitriev I. Fire resistance of loaded I-section column from light gauge steel thin-walled profiles [Огнестойкость нагруженной колонны двутаврового сечения из легких стальных тонкостенных профилей]. Proc. of EECE 2019. Lecture Notes in Civil Engineering, 2020, vol. 70. doi: 10.1007/978-3-030-42351-3_11
    5. Bystrцm A., Sjцstrцm J., Wickstrцm U. et al. Large scale test on a steel column exposed to localized fire [Крупномасштабное испытание стальной колонны, подвергшейся локальному возгоранию]. J. Struct. Fire Eng., 2014, no. 5(2), pp. 147-160.
    6. Bronzova M. K., Garifullin M. R. Fire resistance of thin-walled steel structures. Stroitel'stvo unikal'nyh zdanij i sooruzheniy, 2016, no. 3(42), pp. 61-78. (In Russ.).
    7. Lu W., Ma Z., Mдkelдinen P., Outinen J. Design of shot nailed steel sheeting connection at ambient and elevated temperatures [Конструкция соединения листовой стали с дробеструйным креплением при температуре окружающей среды и повышенной температуре]. Eng. Struct., 2013, no. 49, pp. 963-972.
    8. Heistermann T. Stiffness of reverse channel connections at room and elevated temperatures [Жесткость соединений обратных каналов при комнатной и повышенной температуре]. Luleе Univ. Technol. 2013.
    9. Gravit M., Lavrinenko M., Lazarev Y. et al. Modeling of cold-formed thin-walled steel profile with the MBOR fire protection [Моделирование холоднодеформированного тонкостенного стального профиля с противопожарной защитой MBOR]. Advances in Intelligent Systems and Computing, 2021, vol. 1259. doi: 10.1007/978-3-030-57453-6_55
    10. Gravit M., Simonenko Y., Yablonskii L. 3D-flexible intumescent fire protection mesh for building structures [3D-гибкая вспучивающаяся противопожарная сетка для строительных конструкций]. E3S Web of Conferences, 2019, vol. 9, art. 02004. doi: 10.1051/e3sconf/2019910200
    11. LSTK calculator. Available at: https://steelsupport.ru/lstk/ (accessed 02/15/2026). (In Russ.).
    12. Smirnov M. O., Chekmarev I. V. High-strength steels for elements of light steel thin-walled structures. Promyshlennoe i grazhdanskoe stroitel'stvo, 2023, no. 10, pp. 10-16. (In Russ.). doi: 10.33622/0869-7019.2023.10.10-16
  • For citation: Pan L. V., Stoliarov N. N. Methodology for Calculating the Fire Resistance Limits of Steel Structures Based on Test. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2026, no. 7, pp. 50-57. (In Russ.). doi: 10.33622/0869-7019.2026.07.50-57

BACK