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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

Determiningthe dynamic load caused by accidental explosions affecting buildingsand structures of hazardous areas

Vestnik MGSU 12/2013
  • Komarov Aleksandr Andreevich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Department of Hydraulics and Water Resources, Moscow State University of Civil Engineering (MGSU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bazhina Elena Vital'evna - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Associate Professor, Department of Hydraulics and Water Resources, Moscow State University of Civil Engineering (MGSU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 14-19

When designing buildings and structures located on the territory of explosive plants, it is necessary to calculate the maximum load that can occur during emergency explosions. The buildings should be designed with regard to the obtained values of explosive load. When performing such calculations designers face the following problem. The calculations based on simple formulas and simplified physical ideas about the process of explosion, lead to a considerable overestimation of the parameters of explosive load. This leads to unjustified increase of the price of construction. Performing precise numerical calculations is not essentially possible due to the fact that we don’t know the initial and boundary conditions for the development of accidental explosion.This publication is an attempt to find a compromise in respect of this issue. Calculation scheme should be simple enough, but should accurately describe the physical processes related to the formation and distribution of explosive load in the enterprise territory.The article considers a methodology of calculating the propagation of shock waves and waves of compression, which are formed by accidental explosions in the atmosphere. The wave flows propagation is considered on the territories adjacent to the explosive objects. The method is based on the conservation laws written in the integral form, which allows carrying out calculations for discontinuous boundary and initial conditions.The calculations take into account the actual location of buildings and constructions in the territory under consideration. This allows determining the influence of buildings and structures on the distribution of the blast wave. The article presents the results of calculating the propagation of blast waves on the territory of a real explosive object. The article provides the basic data, which designers need for designing buildings in explosion version.

DOI: 10.22227/1997-0935.2013.12.14-19

References
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