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


  • BUILDING STRUCTURES, BUILDINGS AND FACILITIES
  • Mechanical Safety Of The Main Buildings Of Serial Thermal Power Plants In Case Of Progressive Collapse
  • UDC 69.07
    doi: 10.33622/0869-7019.2025.01.27-35
    Mariya A. BEREZHKOVA1, mashytka-belova@mail.ru
    Vyacheslav V. BELOV2, belovvv@mgsu.ru
    Roman D. VERKHOVSKIY2, roman.verhovskii@mail.ru
    1 Sigma-F Design and Construction Company, Ryazansky prospekt, 8A, str. 1, Moscow 109428, Russian Federation
    2 National Research Moscow State Civil Engineering University, Yaroslavskoye shosse, 26, Moscow 129337, Russian Federation
    Abstract. The issues of ensuring the mechanical safety of buildings of the main buildings of serial thermal power plants, which were actively built in the 1970s and 1980s, while simulating the progressive collapse of their frame, are considered. A numerical analysis of the spatial operation of the frame of the main building within the temperature-deformation block by the finite element method is carried out. As a result, the areas of necessary reinforcement were identified in case of reconstruction of the building. The most vulnerable element of the frame is highlighted, namely, the roof truss. To strengthen it, two options are proposed: installing prestressed puffs within the lower belts and increasing the cross-section of the belt elements by welding additional sheets and rolls, with the introduction of new struts. A verification calculation was carried out, which showed the effectiveness of the considered design solutions. The verification of the obtained results was carried out in the LIRA software package using the finite element method. The cost of reinforcing the elements of the rafter truss according to the proposed options is estimated. As a result, it was found that the most economically feasible option is to strengthen the truss structures with the introduction of prestressed puffs along the lower belts.
    Keywords: progressive collapse, main building of the thermal power plant, reconstruction, measures to prevent progressive collapse, reinforcement of the frame structures, technical and economic assessment of protection options
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  • For citation: Berezhkova M. A., Belov V. V., Verkhovskiy R. D. Mechanical Safety of the Main Buildings of Serial Thermal Power Plants in Case of Progressive Collapse. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2025, no. 1, pp. 27-35. (In Russ.). doi: 10.33622/0869-7019.2025.01.27-35

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